SCIENTIFIC ABSTRACT ZHAVORONKOV, N.M. - ZHAVORONKOV, N.M.

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• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT


Mat %III IMOM
Z%4RvDRoNir\ov
3UBJECT, USSR Piano CARD 1 2 ?A - 1520
AVORONIKOV,N.M.
AUTHOR SEVRJUGOVAIN.R., UVAROV,O.V., z
~TITLE The Determination of the Separation Coefficients of Boron
Isotopes at equilibrium Evaporation of BC1
PERIODICAL Atomnaja Energija, 1, fasc-4, 113-116 (1956)
Issued: 19.10-1956-
The present work describes the exact determination of the separation coeffi-
11 10
cient a of the,system B Cl - B cl and of its temperature.dependence by the
3 3
method of RALEIGH'S distillation. With this method a large quantity of the sub-
stance to be investigated is evaporated with the exception of a small remainder,
and a is then determined from the modification of isotopic conditions lit the be-
ginning and at the end of the process of distillation. Distillation took place
in two stages. The determination of the separation coefficient is possible if
the following conditions are satisfied: The composition of.the liquid must always
,-remain unchanged in the entire volume. Evaporation must be'slow without any
violent boiling. The walls, particularly above the liquid, must always be a
little warmer than the liquid. The first stage of distillation extends from
2006-3000 9 to 50-70 g*~ The distilliAg device is described on the basis of a
drawing. After this evaporation the metal balloon was removed andreplaced by the
evaporator for the second stage.
Also the apparatus for the second stage of distillation is illustrated by a
drawing. This second distillation was carried out under the same conditions as

Atomnaja Energija,,.I, fase- 4, 113-116 (1.956) CARD 2 112 PA.- 1520
the first, and 0,5 to 1'10 g of the liquid was left over in the evaporator.
This remainder of liquid was carefully and exactly weighed. The samples were
filled into glass ampules which were fitted to the evaporator. On the occasion
of the,introduction of the evaporator into the DERAR veasel with liquid air,
the air was pumped out. The evaporator was then heated to room temperature and
in the ampule about 0,3 9 B01 were condensed# Also a second ampule was,filled
3
in the same manner.
At 300 revolutions performed by the vanewheel-like mixing device a attains its
maximum value.
By mean s ofthe same apparatus the influence exercised by the evaporation velo-
10 11
city on the separation coefficient of B 01 -B Cl. was investigated. In the in-
t'erval of evaporation velocitie.a of from 1',9 to 4s; cm3/cm2 hour this amount re-
mained practically constant. With rising temperature a decreases considerably. It
-61,70 the vapors of BIOCJ and BlIC1 have the same viscosity# but at lower tem-
3 10 3 11
peratures the viscosity of B C1 is lower than th t of B C1 . This dependence
'U ~ 3
3 -2;337T
can be represented by the equation a-1,1112..e . According to a mass-
spectroscopic analysis of isotopes of the compound BCI the ratio of,isotopes
3
In the initial state is 4,11. This corresponds to the following concentration:
10
B 1995%, B 8005%-
INSTITUTION:

A40A a
W,_
I RE
vorohkgrn. Corresponding Member Academy of Sciencel 77~-
/Dec__5_r
-ECc 11kaya Nauka i Pr2Wblennost1j Vol 1, No 6) Nov
(published Feb ppbob-bO9
57
their,.
After-reviewing Timiryazev's work on nitrogen fertilizers and
e in agriculture, the.author'discussee.the technical and economic as-,,
cts of thelixed nitrogen industry in the USSR. He concludes, that i*
~iiarching for new methods of nitrogen fixation., "one must not neglect thb;1*._1
-~)Obssibilities opened in this ield by the availability of nucle
f ar ener
would be desirable to find ways of applying nuclear energy directly
the purpose of conducting chemicalreactionsp particularlyas far a#_1
tro work
gen fixation.is.concerned." He discusses the experimental
Ione on e subject, as follows;
Experiments conducted by S. Ya. Pshezhetakiy at the Institute of
-44ysical Chemistry imeni L. Ya. Karpov have shown that as a result of tbe,~
ion on. liquid air 'or air in the gaseous state of rapid electrons or
for" --of, izdde9-__ -
TT;j T7 Ti

SOV/124-58-1-834
..Translation from: Referativnyy.zhurnal, Mekhanika, 1958, Nr 1, p 109 (USSR)
AUTHORS: Z LavpxDnkoY-,--N-.M_' Nikolayev, A.M.
TITLE: Determination of the Eddy Viscosity of a Turbulent Flow in a Rec-
tangular Channel. (Opredeleniye vikhrevoy vyazkosti turbulentnogo
potoka v kanale pryamougollnogo secheniya)
PERIODIf"AL: Tr. KazanskL khim. -tekhnol. in-ta, 1956, Nr 21, pp 177-193
~ABSTRACT: In order to investigate the distribution of the mean velocities
over the cross section of a rectangular channel, the authors divide
the flow into three zones, namely, a laminar sublayer, an inter
mediate layer, and a turbulent core. Formulas are obtained for
the velocity distribution and for the turbulent viscosity coefficients
in the above-mentioned three zones of the flow. Bibliography:
6 references.
Ye. M. Minskiy
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Chemistry. Isotopes.
-bs Jour Ref~Zhur Rhimiya, No 7,'1957, 22218
]Rj. (sa) L001 10-004 and, R2(at)/k(sa)
1.007 tO.002(Rl = 18~/18 5 18 1 1 the ion
61 R2 3 185 7, - a
cluster intensity of SiF with the masses of 85, 86 and
87) an indication that use of this method is purposeleus.
Card 2/2
-78-

UM/Chemisty-Y - Chei ii c al technoloa
Card 1/1 Pub. 22 - 26/43
Authors I ~~lyusov, V. A.; Uptnik, N. N.; and Zhavorortkov, N. M. Memb. Corr.
pil SSSR
Title I Rectification in columns with a rotating rc)Lor
&:Uie-niitoiyo ~-Oft ~-e ra~te iaf -fiva6s exchange in rectirication columns was
investigated with such n1xtt;req lis t,t-r: 4o! :4a -d I qn-r-r-car') c
tetrac,ilortrie, ch~*orobe717.(r-e--,',,. rw 3 -ia* er .-,ne
remu'.' -*) 1,ta~ ire giver ..,i *r--,:
2 USA Table; -r;, -3.
Institution 3cient. Pes. Physicochemical Inst. tr. ,a, KFir ()V
Subndtted July 1, 1955

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ZHAVOROMKOV, N.1-1. (Prof.)
."The Process of,Steady and Unsteady Mass Transport in ti-e Absorption and
Rectification."
report presented at Scientific Conference at the Inct
for ?hysicnl Chemittry-
~Imeni L. Ya. Karpovj Aced# Sci..USSR, Nov,1957-

*.., - ~t ~- - ~ - . - , .,
- , , -- , - 117 - , 1
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HUM

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AUTHOR: Zhavoronkovf N. M. 62-11-1/29

TITLE: Chemical Industry and Science of the USSR
(Khimicheskaya promyshlennoat' i nauka SSSR).
PERIODICAL: Izvestiya AH SSSRj,Otdel. Khim. Nauk, 1957) Nr 11
pp. 1277-1203:(USSR)
ABSTRACT: Here a survey on the development during the last-40 years
is given. Thereare the following important occurrences:
apatit.e.in Khibing on the peninsula of Kola, phosphorite
in the Kara-Tau mountains in the Kazakh SSRj practically
inexhaustible occurrences of potash salts in the region of
SolikamEkand Berezniki in northern Ural# on the basis of
which an extensive potash fertilizer industry was founded.
In 1956 the production of mineral fertilizers (phosphate,
potash and nitrogen fertilizers) amounted to 10.9 million
tons. In 1956 in the USSR 4-3 million t of sulphurio aoid,
631.0 thousand t of caustic soda, 1.545 thousand t of
calcined soda, 77.0 thousand t of organic colourinC.sub-
stancesy 24.9 million t of cement, 46.6 million t of cinder
was produced. With regard to the chemical industry on the

Card 1A whole, USSR ooeupies the second place in the world after the

Chemical Industry and Soienoe of the USSR 62-11-1129.
USA. An own chemical machine construction has been
developped. The following research institutes are existing:
Physioo-chemical instituti imeni Karpoval scientific
research institute for fertilizers and insecticides
State Institute for applied chemistry, State Institute for
nitrogen industry, Allunion soientifical research institute
for mineral raw materials (TIMS), soientifical research
institute for organic intermediate products and colouring
substanoesp institute for pure reagental synthetic rubber,
rubber industry, tire industry, plastics, synthetic alcohols,
artificial fiber. mining chemistry, soda industryp lacquers
and colourlindustryt glasses, spun glass, cement, building
and eleetrotechnioal industry, chemical machine construction,
oxygen machine construction, as well as a number of institutes
for projecting op6rations of the chemical indusvry and an
extensive network of factory laboratories. A survey on the
Most important reaearch papers carried out in the domain of
chemistry is following: Member of the Academy N. S. Kurnakov
developped the chemistry and technology of natural salts and
of alloys, M. 1. Illinakiy, A. Ye. Poray-Koehits and N. N.
Vorozhtsov decisively take part in the development of the
Card 2A industry of interr~liate products, colouring substances and

Chemical Industry and Science of the USSR 62-11-1129
other complicated organic preparations. Tho investigations
~of A. N. Bakh,and his school are the fundament for the,
creation of vitamine production. The papers of A. Yo.
Favorskiy founded thelacetylene chemistry, member of the
Academy N. ff. Semenov in 1956 received the Nobel prizel.the
papers of S. V. Lebedev served for the synthesis of
caoutchoucp in 1932 in the USSR the first large plant for
artificial caoutchoue production, the first one in the world,
was set into operation, P. 0. Sergeyev and R. Yu. Udris
showed new methods for producing phenol, the papers of
R. Yu..Udris on the synthesis of methyl-styrol ware of
great importance, the papers on obtaining aniline by the
method of restoration of nitrobenzene by catalysis were
important. The process of gasification of brown coal, peat
eto. worked out in the industrial range is of great importance.
The first industry,aegregate GIAP - 1 for small-grained
fractions (0-12 mm) coal was set into operation in the
electrochemical combination of Chirchik in February 1950-
A number of such aggregations at present is in action in the
USSR, Bulgaria and-China. From 1948 to 1951 a process for
Card 3/4

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'
AUTHOOS t ------------
Ma-lyUsov, V. A., Malofeyev, 11. A. and 2 0 -4 rW 51--
~ voronkov,. N.-M., Porreepondin Member of the AN USSR
-Zha 9
of:the Separation of Mixtures Under High
On the,Coeffioient
.
jacuum vaporati6n (0 koeffitaiyente razdeleniya. smesey pri
sparenii v vys'okom vakuumd)
PERIOD~ICAM: ;. -.:-~_Doklady AN OSSRt. 1957t 701- 116, fir 41 pp. 66o 663 (USSR)
:ABZTRLCT.: -.The evaporation process in high vacuum can take place under equi-
coindit, ions 9 ifall molecules return finally into the
liquid.phase after their separation from the evaporation surface
n: cons m
f
equeno,6:'o recoiling fro the walls of the closed vessel
and by the mutual bollision;or, however, if all molecules reach
the, condenaati6n,sur'face and do not return. There is, however,

-i tli6;
n molecular destillation a widely,distributed.case, when
the.length'of.-,the free path of the molecules is shorter
than:1the distance between the condenser and the evaporator,(h)
Here ascertain part:of the evaporated molecules suffers a series
of,-dollis,io'ns on their way to the condenser and a portion of them
r.eturns'to t e'evaporation surface. In the case of a considerable
Tse:~'d ~t6m erature +,he length of the free path of the evaporated
P

' -molecules
decreased tridly and the molecules move chaotically
d -
Car
h
~,`ih. t e space betwec evaporator and the condenser. Thus every

Ww" W
H
L-M.
36/s
f iqienf~ of the. Seppration of Mixtures Under High 2o-4-
c, vaporatio''
mo -th same :possibdity. of getting on either- the con-
lecule~has . e
he-evaporation surfaco if these surfaces are equal-
or
grea In this 'case evaporation conditions occur which are
t
;'s-im'ilar,-,to, the equilibrium ones. They differ from the latter only
5.by. the-:faot that, t 6 eva oration takes place with a noticeable
h
veldoity, and.the vap~ore can be seen as a destillate flowing
n f r,'om the condenser. Formulae are given for ideal binary mix-
~Law) -and for teal mixtures. The relation derivated
t
ures (Raoul
or, eal.as well as for real mixtures according to various com-
pu,tdt ions laoks,pt present sufficient data as to be considered
..~~as_e6tablished. he values aM and ap for the system di-2-ethyl-
-h-exyl'-phthalat--di-2-othylexyl-sebacinate (in the further cour-
~,abbreviated:'EHI`h and EES) were measured by Khikman and Tre-
v
oy,(~u6tation'i).The results of their investigations dolhowever,
n6t.coilfirm the relation (8). The authors have measured the va-
lues aM and a for. the system dibutyl-phthalat- dibutyl-"aselaat"
.6 00h'and D
BA be e
twe n 6o.and 12o0. Figure 1 gives the experim-
...,ental- results'of a 50% -mixture of these substances in dependen-
_6 n,
- - e-o the temperature; Here the results are not contradicting
i.67 the thebry.-As the results did not correspond to those of
iokman *A:nd Trevoy, the authors investigated the EHPh -EHB-mix-
d'
The :results ni-ren in figure 3 and 4 are closely agreeing to

'36
On the Coefficient of the Separation of Mixtures Under High 2o-4-. /5X
4yaquum.Evaporation.
those of Khikman and,Trevoj fora are'j however, somewhat deeper
'
Y
for ap. The authors.are not able
o explain these divergencies,
except that in'the,case of Khikman and. Trevoy a partial reotifi-
cation took place. Figure 4 gives the dependence of a,& and ap on
the temperature. It is-neceasarv to complete the method of measu-
ring'of the coefficients of separation. Neverthele8a the results
obtainod in this paper area confirmation of the rightness of the
relation (a) at lower*temperatures and of the fact that the re-
lation aM/ap approaches the value I with the rise of temperature.
There ate 4figures~ and 5 references, 2 of which are Sla~vic.
-.ASSO
CIATIONs Physical-C.hemical.Institute imeni L. Ya. Karpov (Fiziko-khimi-
. cheskiy institut im-. L.'Ya.'Karpova)
SYBUITTED t MaY 30, 1957
AVAILABLEs Library of.Congress
Card 3/3

AUTHORS: Konobeyev, B. Iej Malyusov, V. A., and 20-"15?,
Me, Corresponding Member of,
Zhavoronkovp N.
.
the
~.ITITLE,. Mass Exchange in Thin Liquid Vilms (Massoobmen v tonkikh
plenkakh zhidkosti).
Doklady AN SSSRf 1957, Vol. 117, Nr 4P pp. 671-674 (USSR)
ABSTRACT: In some treatises (references 1-5) it has been proved that
the absorption speed of hardly soluble gases in tubes and
drains with wetted walls at little gas speeds (011-6 meters
per second) is independent of these speeds. The absorption
speed is only determined by the resistance of the mass
delivery in the liquid phase. The treatise discussed here
gives the results of the absorption of CO, by water in
R
rising and
vertical tubes at high gas speed, and wit
'falling liquid currentao From the.data in figure I and 2
that the gas speed strongly influences the
we can oonclude
.
absorption speed in falling liquid current. With rising
liquid current there is only little influence, and with
gas speeds of 11,5 to 39sO meters per second it is rather
Card 1/4 limited. The authors suppr-se that the absorption speed of

Mass Exchange in Thin Liquid Films 20-4-36/52
hardly soluble gaaes in a filmy ("plenochnyy") curient
only depends on the conditions of the formation of waves,
especially on the length of the waves and ori their
amplitude ("amplituda"). The wave length was exterimant-
ally stated means of 2 methods: 1) by direct,light absorption
of the liquid current in the tube, and 2) by light absorptions
fro'm the oscillograph. In this last case the flowing liquid
film connocted a circuit that included a source of current
an& a constant resistance of 50 000 ohms. The alternating
component ("Peremennaya sostavlyauahchayall) of the voltage
that had arisen because of the changes of the thickness of
the liquid layer, was transferred to the entrance of the
oscillograph by theconstant resistance. Table 1 chore the
results of the experimental determinations of the wave
length. Two equations, for rising and for falling liquids,
are given. The first is exact enough as the correepondance of
the resultit.obtained by-experiments to those obtained by
calculation is satisfactory. For the determination of the
amplitude ("amplituda") of the wave profile the elactrie
resistance of the liquid film, dependent on its surface
clirvature, was used. Figure 3 shows the results of the
Card 2/4 mea8uring of the amp"-de dependent on the gas speed in

Mass Exchange in Thin Liquid Films 20-436/52
rising and falling liquid current. In the first case the
amplitude varies from 0,86 to 0,48, in the last case it is
constant and amounts to 0,46. With both directions of the
current it is independent of the current speed, Figure 4A
shows experimental results on the dependence of the
absorption coefficients of CO 2 by water on the wave length
and-on the amplitude of the rising and falling current. The
coefficients of the mass exchange are dependent on the
wave, length and the amplitude. The data on the mass exchange
can be placed satisfactorily within a curve 'if it'is assumed
that themaas exchange coefficients are proportional
to the square of the amplitudes with any (fixed) value
of the.wave length. rinally the possibilities of calculating
the CO absorption coefficient by water, the wave length, and
the.thicknese of the liquid film, are given.
There are 4 figures, Itable, and 11 referenceaj 9 of which
are Slavic.
Card 3/4

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V
-UTHORS; hialyus OV) V4 At) Malofeyev) No A*, Zhavoronkav) 11. U. 6h-1-7/19
TITLE: Investigations of the Distillation Process in a.J4oleaU3Ar StM
of the Centrifugal.Type
(Issledovaniye-protsessa distillyatsii v moleku,1Yn=m kabe
tsentrobezhnogo tipa)
PERIODICAL'@. . Khimicheskaya From~shlennost 1958, Mr 1) PP- 31-36 (USSR).
ABSTRACT: Investigations were carried out in a laboratory molecular cen-.
trifugal distilling still with a conical rotor. A mixture of
di-2-etbylhexyl-phthalate (EGF) and di-2-ethylhexylsebacinate
(EGS) was used. The distribution coefficient of the mixture.is
independent of the composition in the case of a nonequilibrian
vaporization and depends only on temperature. The investigations
of the temperature influence and of the charging on the distilla-
tion temperature have shown that in the last case at temperatures
up to 125oc somewhat higher results are obtained than were expec.
ted according to the computation. This is assumed to be due to a
splashing of the liquid on the rotor during the destil-lation, and
not to faulty design. The thereby produced error is given with
card 1/2 approximatively 0,,2 and a correcting formula is given for the

Investigations of the'Distillation Process in Mlem)ar 64-1-7/19
Still~ of the Centrifugal Type
~computation of--the~distillation velocity* The formula according
to Burrows (reference:12) is used,, whereby a satisfactory agreew
ment is obtained. Investigations of the distribution effect shon
wed that at increased temperature the output of the apparatus
decreases,which seems to be due to the increased vaporization
velocity and the diffusion of the more volatile EGF from the
liquid centre. The output amounts e. g. to 0,75 at 1340c. The
distillation velocity is computed according to a modified compu-
tation formula of Carman (reference 14)) whereby the influence
of inert gases is taken into account. It was found that,an im-
provement of the distillation process is obtained by the redues
tion of-the-vacuum, since the splashing of the distillate is
reduced as well. Some formulae for the practical computations
of the apparatus of the centrifugal type are Given.
There are 9 figures, and 15 referencesp 7 of which are Slavic.
AVAILAMEr Library:of Congress,
1. Molecular distilling plants-Centrifugal-Test results
2# Distilling plants-Test results 3. Distilling plants-Laboratory
Card 2/2~

AUTHORsi Zhavoronkov, N. M., .Malyusovt V. A. sov/156 -58.1-45/46
VITLE: Investigation and Calculation-of Absorption and Rectifying
Columns,With Regular Filling Material (Issledovaniyei raschet
absoMbionnykh i rektifikatsionnykh kolonn a regulyarnoy
nasadkoy)
PERIODICAL Nauchnyye-doklad
y vysshey' shkoly# Xhimiya i khimicheakiLya
tekhnologiya, 1958, Nr 1, ppe 185 192 (USSR)
ABSTRACT-. As is well knownp,the columns mentioned in the titl have
e-
a a feature a high throughput rate and a low hydraulic r
sistance..Their investigation# as well as the development
of an economical design, would therefore be of great practical
interest. k survey of 1-iterature is given (Refs 1-5)- In
cooperation with Malofeyev, Umnik, Babkov and Uvarov (Refs
6-10).the authors have concerned themselves with designing
distribution equipment of low hydraulic resistance..Among
this equipmentg4types (and 3 subtypes) of vertical columns
were studied (Figs I& - g). Figure 2 given the schematic
design of a column (500 mm diam., 18 m height) filled.with'
packings of sheet,filling material. In order that all sheets
Card 1/3 may be moio 91 special grate distributors were arranged

Investigation and Calculation of Absorption and BOV/156-58-1-45/46
Rectif
ying Columnslith Regular Filling Material
on the.top packing. The main advantage of the filling
materialp its low hydraulic resistanoop is illustrated in
figure 3 6 The maximum load of the regular filling bodies can be
computed from the graph, figure 5. Table 2 gives some recti-
fication results obtained with the columns described6 All
experiments were made at pseudo-turbulent conditions
(Re 500 2000). For these, the height that would be
r
equivalent to the theoretical plate was found to be almost
independentof the load. ForIndividual cases where the
concentration of the component to be.extracted is small (as,
for instance# in producing the heavy oxygen and hydrogen
ieotopes) the use of the column will in fact permit installation
of a multistage rectification. The condenser of the, preceding
column is used as an evaporating still for the next column
whereby much steam is saved. The capacity of these columns
was studied for the absorption of CO 20 and NE4 respectively,
in waterg and of NH in HC1 (Refs 9,10). From this the
4
partition.coefficients,iri the liquid and gaseous phases could
Card 2/3 be determined. B.Y-' -Aying packings offilling material of

Investigation and Calculation-of Absorption and sovM6 -58-1-45/46
Rectifying.Columns With Regular Filling Material
quite different values of equivalent diameter (the gaps between
sheets being 59 .10,-20p and 30 mm) formulae for determining
the partition coeffioiento of mass transfer were derived.
There are 5 figures$ 2 tablest and 15 references, 10 of which
are Soviet$
ASSOCIATION: Kafedra.tekhnologii evyazannogo azota i shchelochey Moskovskogo
khimiko-tekhnologicheakogo instituta im.D.J.Mendeleyeva
(Chair , of Bound Nitrogen and Alkali Technology of the Chemical
Engineering Institute imeni D.I.Mendeloyev,Moscow)
SUBMITTED: October 10, 1957
Card 3/3

SOVA156-58-3-51/52
AUTHORS* Sakodynskiy, K. I. Babkoyt.S. I., Zhav
TITLE: Two-Temperature Method for the Separation of Binary blixtures.
(Dvukhtemperaturnyy metod razdeleniya.binarnykh smesey)
PERIODICAL: NmuhmVys-doklady.vysshey shkoly, Khimiya i khimicheskaya
tekhnolo~iyaj 1958t fir 3, PP- 598-602 (USSR)
ABSTRACT: In the present paper the most important rules g6verning the
two-temperature method for the separation of binary mixtures
are exDlained. The two-temperature method may be used.success-
fully for-the isotopic separation and for the absorption-'
desorption-separation of gases,. The conditions for carrying-
out effective separationsby means of the two-temperature"method
are given. The degree of.elution f in the two-temperature
methodis dependent on the temperature difference. An e,qua-
tion was formulated for the approximate determination of
the number,of theoretical.stagee necessary to obtain the so-
paration desired..It was found that two separation columns
are, connected with each other by the two-temperature method
Card 1/2 and that they reach the,same separation effect as can be

MIX
'a kk--a2x'.L959$ t~ie T-, AsWWewev ca.,4;rees TOr Gewis! azd
P.!Y.',XLL*d Mml gtv''r Vill iwxe 30=0 in 11060CM, TIw T=9MM 'of this
ywobLvAo of Wmarvil. and, applied
c: U % I Lt V 1; 1-Y "1 -13 :W. zlmzzy of the suieutIst lieadelem*'.
'V)LeVa:~' r 2.'eyO--'tg on iwoblems concerning the present stagi of
c4ezieizz-j vill be 6-4yea at, this congaess. Basic chemical 1problems
be la Vie Virst jJLe=--7 =et.~19 A. X. Nesmeyanov,,
of the Acadwgr o.-.' VJ.L b02A z leature on the
7AVIr OrA 611~~8 Of 0=634~0 MeT40t-Zf.".
Fe~t(rXOTY I-,MS-aIje-t Of ite StZte CaAa4t~_-e
of Chemistry at
'SMI
'Q 12 0:*6 Y-AM-SterB Of i1a IJ VIV. deliver a lecture on
Z fa.: t!W 0&702-UIff-It Of C.~teCkIOIO&al prOgMs
t,, of V-01 -k,-u= sai=. tists more
VMer the ff.11
veqvz4a Md leo~a':.'Nft-a cr-~ aw'd txmst-t~ptlws of

AUTHORS: Malyusovt V..A., Umnikp 11. 11.9 SOY/64-58-5-9/211
Zhavoronkov,
TITLE: The Inv stigation and Calculation of Multistage Columns for
Molecular Distillation (Issiedovaniy'e i raschet mnogostupen-
chatykh kolonn dlya molekulyarnoy distillyataii)
PERIODICAL: Khimicheskaya,promyshlennost', 1958, Nr 5, pp. 296 3o2 (USSR)
ABSTRACT: Although several constructional designs for the above
mentioned columns exist only those suggested by Brewerg
Madorsky 'et,: al. (Bryuyer, Madorskiy) (Refs 1,2) as wel I as
that of the authors mentioned above have been seriously
studied. In the present paper the influence exerted by the
distillation temperature and the high pressure on the degree
of'distribution, and the rates of evaporation and distillation
were investigated. In the construction of the columns the
principle suggested by Madorsky, Bradt and $traans (Madorakiy,
Bredt i Shtraus)(Ref 2) was employed. A diagram of the.con-
structional elements as well as a schematic representation
of the arrangement are given. The authors worked with 5
Card 1/3 columns of different stage numbers and investigated two

The Investigation and Calculation of Multistage SOV/64-56-5-9/21
Columns for Molecular, Distillation.
-b.inary:ey.stems,,.di-2-athylhexyl-phthalate di-2-ethylhexyl.
sebacinate and dibu'tylphthalate.- dibutylacelainate. The
degree.of efficiency was calculated according to the equations
given and the dimensions of the various sized polumns were
.,found to be an.important factor here. The rate of evaporatlon
wao'calculatediacoording to the formula of Knudsen and
Langmyur (Ref 4). Based on the results obtained the authors
mention that there exists no influence of the pressure of
gases onthe degree of efficiency. Experiments
carried out to,ifivestigate the rate of distillation (the
formula by Knudsen and Langmyur was used) showed that within
the temperature range from 88 to 110 0 the quantity I - y
practically remains constant and is about 0,78. At increased
distillation temperatures the coefficient f must be intro-
duced.into the formula of,Borrouz.,The applicability of the
equation of Carman (Karman)(Refs 8,12) is also mentioned. The
calculationof the number of ideal molecular plates (imp) is
carried out with the isothermal 11,
ie YM (x) being used in the
place of,the obar y4 - T(m) in the graphical calculation
Card 2/3 at the y -_7 gram when the temperature of.the mixture does

'AUTHuR- Zhavororkov, "j, Correoporiding Merl-r-* I' the US )SR Acaderly of
TITLE: Large Canter of Chemical Science (Krupnyy tsentr khimichuskoy
nauki) *th Annivarsary of the Foundation of the Physical-
Chemical Institute Imeni L.Ya. Ka -(Y, 40--letiyu so dnya osro-
rpov
vaniya fiziko-khimicheskogo instituta imeni L.Ya..Karpova)
Ple,.',"IODICAL: Xhimicheska a nauka i promyshlennost', 1958, Vol III, Nr 6,
USSR)
pp 813 814
ALBSTRACT.- The Physical-Chemical Institute Imeni L.Ya. Karpov has been
founded at~the-end of 1916.- Its first director was the A
cade
mician AJT.~Bak.h who headed,the institute during 26 years. In
1930-32 several laboratories were separated from the institute
and formed the base for other institutes, e.g. chemistry of
coal and oil* artificial fibers, plastics, etc. A.U. Bakh in-
vestigated ferments and slow oxidation proceases. Other in-
ve
atigations concerned the electric chemistry, the kinetics
of oxidation reactions, the polymerization of hydrocarbons,
eta. Several membevs of the ihstiLuLo were awarded the
Stalin Prize~* AA-1r,_ Dakh, A.N. Frumkin, P.,I. Kazarno-yrkiy,
Car,J. 112.~ flikol~ikiyj B_P~. Ormonf, N_.C, Shafran, 1,V,, Petryanov,

Large Center of Chemical Science. 40th Anniversary of the Foundation o~' the
Phys ical -Chemical Institute IMeni L.Ya~ Karpov
rf. D Rozeiblyum, D'M Faynbe G-K, Bcr:Irjkov, Ya.K.. Syrkin,
Y KI~N~ Ohterlin:.-, 1~1~~h, Pur3hteyn, M.G. Slin4ko,
argin,
S.S~ Medvedev, S,.D.Levina, K~A.Golldberg, LT.Ye.. Kagan, K,A,.
Kocheshkovi N.'A, Zhavoronkov, 1I.AJTalyusov. In Vie las' 4"
ye~Lra more than.3,50". sQien-'Zific works have been published
~by the institute. ., Vcw c.f
:an
the USSR Acadelmy.of,.3~~iences, ).5 doctors and are
tU4
-1.1/orkint, in the in',3+1 -e, -a
There aro 18 laboratorie,;. 11,~, -'. rch
is conducted in the, fieldst structure of polyMers and pro-
duction of polymers given properties; scientific selec-
of catalysts; radiation-chemioal processes; separation of
mixtures; formation of aerosols, In the Jnsti4 o!~t
Lute the n
modern methods, like pararialrnetic resonance, etc are use!.,
Card '0

J
50),
AUTHORS:. Kaly-usov, V. A., Malafeyev, It. A., SOY/76-32-lo-25/39
Zhavoronkoy,
TITLE: The Determination of-the Separation Coefficients of a
Mixture of Dibutyl:Phthalate and Dibutyl Azelate (Opre-
delenlye koeffitsiyentoy razdeleniya smesi d~ butilftalat-
dibutilazelaat pri isparenii v vysokom vakuume)
PERIODICAL: Zhurral fizicheskoy khimii, 1958, Vol 32, Nr 10,
pp 24o3 24o9 (USSR)
ABSTRACT: I.Y.Aristova participated in the experimental part
of this work. Aside from the paper-by Hickmann and
Treyoy (Khikman.,and'Tr'evoy) (Refs 1,2) there are at
present no reliable data on temperature coefficients
in high-vacuum. Apart from the data given by Williams
(Vil 'yams)(Ref 3) for an evaporation in equilibrium
at 1550 no determinations of separation coefficients
of the mixture dibutyl phthalate (A) and dibutyl azelate
(B) as a function of the composition versus the temperature
have been carried out. This was done in the present case
Card 113 under the conditions of an evaporation both in equilibrium
77

The Determination of the Separation Coefficients of a SOY/76-32-lo-25/39
of Dibutyl Phthalate and Dibutyl Azelate
and not in equilibrium,.in high-vacuumb 10-4 torr).
A tensiometer,w.ith "falling current" whilh supplies
accurata data as mentioned b nd Trevoy (Ref 2)
y Hickmann a
was use-I in the investigations with evaporation
without, equilibrium.
-The separation coefficients of
the:mixture (A)-(B) were determined at the temperatures
6o,eo,~iop and 1100 and-within a concentration range
of 10 to 90 mol%(A)..The coefficient decreases with
the.increase inztemperature and an increase in the
concentration of ~A). An apparatus described by Hickmann
and Trevoy (Ref 2 was used for the measurements In
the evaporation in equilibrium. These experiments were
carried out at 80,100 and 1200 at a concentration
of 12,5 to 86 mol%(A). The same behaviour of the
separation coefficient as in evaporations not in equi-
librium wad observed. A comparison of the coefficients
of evapor, with those not in
ftion in equilibrium (a P)
equilibrfam (am ) showed that a P aM and that with an
a
_m 1. It in assumed that
Card 2/3 increa e in temperature a
p

5(4) SOV-/2o-121-4-30/54
AUTHORS: Bakodynakiyo K. Is, Babkov, S.--I.p Zhavoronkov, N. M.,
Corresponding Alembery Academy of
~-TIITLE: The Coefficients of the Equilibrium Distribution of Deuterium
in the Isotope Exchange Between Water and Some Thiols (Ko-
effitaiyenty ravnovesnogo raspredeleniya deyteriya pri izo-
topnom. obmene mezhdu vodoy-i nekotorymi tiolami)
PERIODICAL: Doklady Akademii nauk US% 1958t Vol 121, Nr 4, pp 681-684
(USSR)
ABSTRACT: It. was.interesting experimentally to determine the coefficients
mentioned in thetitle. This paper investigates the equi-
librium, of the reactions of-deuterium exchange between water
and,normal butyl thiol n-C 4H9SH, seconda ry butyl thiol
sec-C H SH,.isoamyl thiol ic H SHt normal hexylthiol
4 9 5 11
n-C H, Mq~ and thio,ph,enol C H SH. The experimental determina-
6 3 6 5
tion and the calculation of the coefficients a of the equi-
librium distribution of deuterium are discussed.,The iso-
tope equilibrium in the exchange between water and th8 thiols
Card 1/3 is obtained after 8 10'hoitte at a temperature of 20

SOY/2o-121-4-30/54
The Coefficients of the Equilibrium Distribution of Deuterium in the Isotope
Exchange Between Water and Some.Thiols
(after 2 hours after the exchange with thiophenol) and after
2 - 4 hours at 800. In addition to the experiments concerning
the direIot exchange (between water enriched by deuterium and
thiol of a natural deuterium concentration), for each of
the investigated.types of thiol one experiment concerning
0
the inverse exchange at 20 was carried out. The results of
the experimental determination of the coefficient a of the
equilibrium distribution (for various temperatures) are given
in a table. The correappnding errors are then discussed. Under
the discussed conditionsof the isotope exchange, only the
hydrogen isotopes of the group S-H participate in the reaction.
The temperature dependence of a is shown in a diagram and
thecorresponding analytic expressions lg(a) - f(T) for the
various thiolsare explicitly given. However, the results of
this paper and also previous results are not sufficient for
thefinding of a direct connection between the quantity a
and the composition (and the structure) of the radical group
It is.only evide that the influence of the structure and
Card 2/3 of the composit! of the radical group on the value of a is

10M,
AUTHORSs Zhavoronkov, N. M., Corresponding SOV/64-59-2-12/23
'
TMM 0~" ~
7_kartynovj Yu* 14, 9
Candidate of Technical Sciences
TITLE: the Kinetics of the Absorption Process
''of Nitrogen Oxides in Waterand Aqueous Solutions of Nitric
Acid (issladovaniye kinetiki protsessa aboorbtaii okislov
azota vodoy i vodnymi,rastvorami azotnoy kisloty)
PERIODICALs Khimicheskaya promyshlennost', 1959t Nr 21 PP 150-155 (UBSR)
ABSTRACT: In the present paper-previous experiments (Hof 1) were
continued. The absorption process took place in a tube
.(diameter 10.2 mm, length 1 mAn the case of some experiments
0.5 m and 0.3 m), whichwas placed in a thermostat.,The liquid-
and gas flow were measured.by means of a rhoometer. The gas
phase was analyzed according to the method already described
(Ref 1). Si noe the components which are absorbed (N02 or N20 V
N 0 or NO + NO have not yet been determined, all computations
2 3 2
were made with respect to NO and N 0 It was found that the
2 2 3'

Card 1/3 absorption process is retarded with NO of relatively weak
2

Investigation of the Kinetics of the Absorption BOV/64-59-2-12/23
Process of Nitrogen Oxides in Water and Aqueous
Solutions-lof,Nit.ric Acid.
.Concentration (Fig.1),and.the absorption rate depends on the
NO -concentration and tomperature..It is$ however, independent,
2
of the velocity of gas flow (kinetic range) while at higher
X02-concentrations the rate, of the absorption process also
depends on.the velocity of gas flow (Fig 2) (hydrodynamic
range).-.,The transition from the kinetic to the hydrodynamic
range takes place at a certain NO -concentration (different
2
for the different flow velocity)pi* eo the concentration of
the dynamic equilibrium. The absorption of NO in 39-51Y-
2
nitric acid differs from that in.vater and alkaline liquids
by the fact that no kinetic course of reaction can be observed
and that in the concentration of a dynamic equilibrium of
NO 2 (proportional to the concentration of nitric acid in which
it is absorbed) the process is interrupted (Pigs 8-10). If the
NO 2 content inthe gas exceeds considerably that of NO, mainly
Card 2/3 N021 is absorbed.,# the reveres caue N20 3 (or NO + N02)

5(4) SOV/156-59-2-9/48
'AUTHORS; Sakodynekiy,~K. 1. ,
~jk v
Lhay~o .9
pj
_,
_
.TITLE: The Rate of HydrogenExchange Between Water.and Isoamyl Thiol
in an Inert0olvent (Skorost' vodorodnogo obmena me2hdu vodoy
i izoamiltiolom v,srode.inertnogo restvoritelya)
-:PERIODICAL: Nauchnyye doklady vysshey shkoly. Khimiya i khimicheskaya
tekhnologiyap 1959t lir 2, pp 256-259 (USSR)
ABSTRACT: Scarce publication data on the hydrogen exchange between
the S-H- and O-H-groups (Refe 1-11) are mentioned. Asthe
two.components mentioned in the title are not soluble in
one anotherp the rate of isotopic exchange depends to a
considerable extent on the conditions of mixing of the
two co.mponente (Fig 1). Thereforog the reaction in solution
was investigated in an inactive mediumq ioes acetone.
Though acetone enters an exchange reaction with water, this
reaction.-is so slow (Ref 14 ) in the neutral medium that it
was possible to neglect it for the short periods of experi-
menting. The degree of exchange was calculated according to
x
the following formulat. x
0
1 I 00o (x initial
F (1 '~
Card 1/2 o X
00

BOY/156--59-2-9/48
-The Rate of Hydrogen Exchange Between Water and Isoamyl Thlol in an Inert
A.
Solvent
concentration of deuterium in waterl x,, concentration of
D according to the time -r, x,,- concentration of D after the
state of equilibrium has beell attained). A table given the
experimental results* They indicate that the.exchange reaction
proceeds in the inert solvent with high velocity and is
finished after 0-5 min,.and that the isotopic exchange does
not cause side reactions. Figure 2 shows the difference of
the reaction rate in the case of the mixing of the components
and of solving them in an inert solvent. There are 2 figures,
1 table, and 16 references: 9 of which are Soviet.
PRESENTED BY: Kafedra tekhnologii ovyazannogo azota i shchelechey floskovekogo
khimiko-tekhnologicheskogo instituta im. D. I. Mendeleyeva
(Chair of-the Technology of Bcund Nitrogen and Alkalies
of the Moscow Ine'titute..of Chemical Technology imeni D. I,
Mendeleyev)
SUBMITTED:, December 31 1958
Card,2/2

21(5) SOV/64-59-3-9/
24
AUTHqRq,,t. 1
Zhavoronkov, N. M., Sakodynskiy, K. I.
------------------------
TITLE: . 1 Industrial Methods.for the Production of Heavy Water (I)romysh-
lennyye metody poluoheniya tyazheloy vody)
Khimicheskaya promyehlennosti., 1959, Nr 3, pp 35 48 (USSR)
ABSTRACT: A detailed au rv.ey is given on,industrial methods of producing
. .heavy water,~sta,ting data on the technological methods of the
whole,world, which are projected or have been carried out, or
which are being carried out or have been dropped already. The
various methodsof developing and separating deuterium are
theoretically dealt with; as well as the electrolysis, the che-
exchange of isotopes and the rectification of water and
hydrogen, the corresponding data are given (Tables 1,2 (print-
ing error)). Among the various factories in the western
countries established for the production of heavy water, those
works are mentioned which work aocordingto the electrolytic
method,':the rectification of water and the distillation of
hydrogen, and according to the double-temperature method, the
,
corresponding figuras are given, representations in diagrams
Card 1/2 and industrial and commercial data are shown. As.far as the

Industrial Methods forthe-Production of Heavy Wate., SOV164-59-3-9124
method of hydrogen distillation is regarded, it was menti%~ned
..~thaVthis.was.thelfirst method t6,be introduced in USSR -in-
dustry, deuterium was extracted from electrolytic hydrogen
according to.the low-temperature rectirication (Ref 37). The
latter production is the only example given for the production
of,heavy water in,a country other than weatern and is described
in detail (Fig 4, scheme). I tableic also given (Table 3)
with data onworks and firms in western countries which deal
or dealt with the production of heavy water. Finally compari-
sons are made between the various methods of producing heavy
water., and the corresponding data are given of some works in
thewestern countries (Tables 4,5). There are 12 figurest 5.
tables, and 96 references, 6 of which ar-a Soviet.
Cara '2/2

- - Do- Ur
57 ifou
z"--fi & 0 sov/184-59-4-2/18
AUTHORSt Malyusov, V.A., Candidate of Chemical Sciences; Malafeyev, N.A.,--Candidate,
of Technical Sciences;, Zhavoronkqy,..N.M,, Corresponding Member of:AS USSR
At
TITLE: multistage Metallic Apparatus for Molecular Distillation
PERI,ODICAL; Khimicheakoye mashinostroyeniye, 1959, Nr 4, pp 4 6 (USSR)
ABSTRACT; The article describes a. 9-stage apparatus of ladder-type, suitable for.
molecular distillation on an industrial scale. The apparatus. (Figure,l)
donsists,.of,a casing 1with rectangular cross-section. Inside the casing
there is a tub'2, divided by walls into cells 60 mm long each. Condenser
4 is bent in its lower part for better flowing off of the condensate. The
space between the tub and the condenser is divided into sections by means.
of the screens, to avoid the mixing of vapors of different concentration.
The apparatus,is installed at an incline of 2 - 30, the end with the flange
being in the higher position. The cells are filled with the mixture to be
separated. The lower part of the condenser is filled with a heat carrier,
having a boiling temperature at atmospheric pressure about 50 - 1000 lower
than the temperature.ofthe evaporating mixture, but higher than the melting
Card 1/3 temperature of its components. A water-cooled unit 5 serves to condensate

66161
sov/184-59.4-2/18
Multistage Metallic Apparatua.for Molecular Distillation
the vapors of the~heat:carrier. mixtures with low melting tempera-
tui~es are distilled, the condenser can be cooled directly with running
water,,and no spec ial cooler is needed. In the process of distillation
the mixture evaporates in each cell, the vapors rise and condense on the
surface of the condenser, the distillate flows to the rib of the condenser,
from where it flows over into the adjacent higher cell through the trough 7.
As-soon as,a cell is filled with.the fluid, the latter flows over into the
adjacent lower cell through slits in the walls separating the cells. As a
result of this process of.counterflow of the fluid and vapor phases, the
light components concentrate in the upper part of the apparatus and the
heavy components In the lower part. The apparatus was tested (I.V..
Aristova, participated) with the mixture di-e-othylhexylphthalate-di-2-
ethylhexylleebacate (BOP-BDC), the temperature and the residual gas pressure
being 1480 and 6.10-3 mm Hg respectively. Each test lasted 15 hours. The
average efficiency of the apparatus was 0.68, that of individual cells
ranged between 0.8 in the middle part and 0.45 at the ends. The distillation
rate for one cell, cumputed by Knudsen-Langmuir formula was approximately
Card 2,13 300 g/hour. For industrialuse the design of the apparatus can be con-

5(0) BOV/64-59-4-1/27
AUTH,OR~. LZhavoronkav, K.,M., Deputy Chairman of the Organization Cam-
mitt e-e-07-we--viff th Mendeleyev Congress, Corresponding
Member of: the AS USSR
TITLE: -VIII., Mendeleyev Congress of General and Applied Chemistry
'(VIII. Mendeleyev'skiy 911yezd po obahchey i prikladnoy khimii)
PERIODICAL; Khimicheskaya promyshlennost', 1959t Nr 4. PP 1-10 (USSR)
ABSTRACT: From March .16 to 23, 1959P.the eighth traditional congress

of V*4
tiRubsian chemists took place in Moscow . The congress
was organized by, the
Academy of Sciences of the USBRY by the
-
Ve yuznoye khimicheskoye obshchestvo imeni D. 1. Mendeleyeva
980
(All-Union-Chemical Society imeni D..1. Mandeleyev),,the
~ Gosudarstvennyy,komitet Soveta Vinistrov SSSR po khimii (state
Committee of the Council of Minist~re of the USSR of.Chemistry)
and-by the Ministerstvo vysshego obrazovaniy4 SSSR ( Ministry
of Higher Education of the USSR). In the introduction this
paper gives-a detailed summary of the scientific perceptions
of D..I*_ Mendeleyev and mentions the 7 congresses which have.
hitherto taken pjace.with data on the development of the
chemical industry in the USSR and some lecturing scientists
Card 116 of the VIlth Congress (No N. Beketoy, 11. A. Umov) V. 1.

sov/64-59-4-1/27
VIII. Mendeloyev.CongreBs of General and Applied Chemistry
Vernadskiy, D. T.,Konovalov, A. To. Favorskiyj H. S. Xurnakov,
A. Ye. Foreman, H. D. Zelinskiyp L. A. Chugayev, V. Yi.
Tishohenkoj D.,X. Pryaniahnikovy A. 11. Bakhp P. P.,,Lazarev,
V. G. Xhlopin, A...A. Baykov I S. I. Vavilov, 11. A. Morozovp
H. As' Shilovj V,.,-A. Kioiyakovskiy). In.the follovoing. the
present problems of the chemical industry of the USSR,are dis-
cussed ~-~~JLnd _~ALX-ro the production of high-molecular..
compounds, of,polymers, of biologically active compounds, the
chemistry of elemental-organic compounds of semiconductors
and radioactive radistons, the control of nuclear reactions
discussed on the XXIth Congress &Vthe. CPSS by Academician
1. Ve Kurchatov)p the technology of silicates, and other.
problems of theoretical and applied,chomistry are mentioned.
which were, dealt with at the- VIlIth.Congreso. In the opening
speech..the chairman of the OrganizatioA.Committes of the
VIIIth Congreesp the President of the-AS U8811, Academician
A.1H. Neemoyanov discussed shortly the development-of-chamical
sciences and industry,in the USSR since the V11th Congress.
and the main tasks-of the VIIIth Congress. In the first plenary,
meeting a contribution of the Chairman of the State Committee
Card, 2/6 bf.Ue Council of Ministers of -the USSR of Chemistry V. S.

SOV/64-59-4-1/27
VIII. hTendeleyev Congress of General and Applied Chemistry
Fedorov,was given about the "Problems of Scientific Technical
Progress of the Chemical Industry" and by.the Academician
V. A. Kargin on t he "Fundamental Problems of the Polymer
Chemistry". In the plenary meetings the following contributions
were given: Academician A. It. Nesmeyanov "The Periodic System
of the Blements.of D. 1. Mendeleyev and Organic Chemistry"t
-Academician ff. ff. S.emenov Fundamental Problems of Chemical.
Kinetics", Academician V. I. Spitsyn -1111odern State ofthe
Periodic System of D. 1. Alendeleyev"t Academician At Pe
Vinogradov - "Fundamentall1robleme of ltudioohamiatryll#
Aoademician~Y. A* Enge'llgardt - "Fundamental Problems of
Biochemistryllp Professor A. V. Sokolov..- "Chemical Problems
of the Agriculture of the USSR11p Director of the Nauchno-
iosledovatellskiy.institut khimicheakogo maeh1nostr.oyeniya
(Scientific Research Institute of Chemical.Yachirxe.Conatruc-
.tion) V. V. Nikolayev - ."Main Problems.of the.Chemical Ap-
paratusand Ma6hine Construction", Correspond.ing Member-of
the AS US~R Ya. K. Syrkin - "Present State of the Problem
of Valence" and Academician A. P. Aleksandrov - "Chemical
Aspects in,the Application of Atomic Energy". 17 sections
Card 316 and 9 subsections worked on the Congress. 1500 delegates among

SOV/64-59-4-1/27
VIII, Mendeleyev Congress of General and Applied-Chemistry
them 700"gueetB from 19 countries (150.scientints) attended
.,the Conference. In the opening-sesoion the Chairman of the
Vsekita skogo -khi,micheakogo obahahestva (All-Chinese Chemical
Socieiy the Rector of tho Hankayekly univereitat (University
Nankinglug &&j-hsiang maile a speech and at -the final session
the Professor of the University of Sofia-Dimitr Ivancy.'The.
foreign acientisto.made approximately 60 contributions among
them the following.-Liu Ta-kangp, Director Of the Institute
of Chemistry of:the Academy of Sciences of the Chinese Poople,la
Republic - "State of the Studies on Rare Elereate in the
Chinese People's, Republic", K.Kenintsescul, Rumanian scientiat,
Academician - "Separation of the Complex of Cyclobutadiene.
With Silver Nitrate$'$ Academician 1. Murgulescu -"Kinetics.
ofthe Dehydration of the'Crystal Hydrates", and Academician
Ro Ripan - "Investigation of the Structure of Some Inorganic
Compounds by Means of Radioactive Isotopes", Academician
0,eza Shay, President of the Hungarian Chemical Society
".'Quantitative Ratio'.-in Frontal Gas Chromatography"If
Ingoldl, Professor of the.London University - "Nitration With
Reapect'io Nitrogen and Oxygen'19 R. P. Bell, President of the
Card 4/6 Paraday.Society and Professor at Oxford University "The

SOV/64-59-4-1/27
VIII.Mendeleyev Congress of General and Applied Chemistry
Tunnel Effect in Reaotions-With the Action of Hydrogen Iso-
topes" (H. K. Ing61 d made a lecture in Leningrad on the
theme "Studies of'the Kinetics of the Nitration Process"
~H. Novotny, Profea of
requested by Russian Gcientists),~ sor
the Vienna Technical University - "Crystallochemistry, of
the Carbides.and Silicides.,of Hafnium and Uranium", of the
plenipotentiary for the organization of scientific research
work at the,Frenoh Prime Minister's office, Professor Plyer
Piganloll "Rheological Properties of Molten Polymers; and
!Forganization of Scientific Research Work in France", Charl'
Prevop President of theChemical Society of France - "Meso-
mechanism and.CircUlar Displacement of Electrons",
T. Sherwood, Professor of Massachusetts Institute of Technology
"Ifew Theory of Mass Transfer Effected by a Chemical Reaction",
S. Uinshteyn, Professor of California,University in Los
Angeles ''On the Brine Effects and Ionic,Vapor in So'lvolysia".
The discussions of S.Thompsonand A. diorso, Professors of
California University in Berkeley and their lectures on the
investigations of the transuranium elements, the chair
of G. Seaborg met with lively interest. Furthermore, the fol-
Card 5/6 lowing foreign scientists participated actively at the Con-

SOV/64-59-4-1/27
Mendeleyev Congress of General and Applied Chemistry
gress :Viktor ~Kemulyaf Bogdan.Kameneky, Corresponding lfembers~
of.the Polish Academy of Science0p and Professor Aleksandr
Zmachitaky , Deputy Chairman of the Society*of Engineers and
Technicians of the Chemical Industry of the Polish People's
Republic, Li Sin Gip Academician of the Korean Democratic
People's Republic.(with a lecture ozi the synthetic fiber pro-
duction), Erich Tiloj,Director of the Institute of Inorganic
Chemistry of the Academy of.Sciences in Berlin (with the con-
tribution."On Studies in the Field of Polyphosphates")v the
Nobel prize-winner Walter Noddackq Professor Ida Hoddackp
G. Wittig, Professor of.Heidelberg University, the Dutch
scientist Kh. R. Yxoyt, the Vice-president of the French Chemi-
cal Society A. Norman, Boio Telak I Professor of Zagreb Uni-
versityl-D* Seperano, Professor of Padua University, Professor
Yuro HoriuO Director of the Institute of Catalysis in
Sapporo (=raln). Moreover the representatives of the Inter-
national Congress of Pure and Applied.Chemictry - President
A. Schtoll (Switzerland).., the Secretary General.R. Morf
Switzerland) and 11embern of the Executive Committee V. Klemm
~GFR)I.M. Letor (France), attended the Conference., The VIII.
Mendeleyev Congress of General and Applied Chemistry took place
Card 616 under the motto "view into the future". There is 1 figure.

5(0)
S:
AUITHOR 'Vollfkoviohp S. 1.9'Academiaian. SOV/30-59-5-35/43
I
- ,
Zhavoronkov N 1.,.Correaponding Memberl.Academy of Sciencesp
VITLE: At the American~Congrees of.Chemical Engineers (Na amerikans-
kom kongiesse inzhenerov-khimMmv)
PERIODICAL: Vestnik,Akademii nauk SSSRf 1959# Nr 5P PP 119-125 (USSR)
ABSTRACT: The American Society of_Chemical Engineers, upon whose invita-
tion the authors of the present paper paid a visit to the USA,
celebrated the 50th anniversary of their foundation last year.
i
The Jubilee Congre~s
ia of the,Society was held in Philadelphia
.Tune 22, to 27, 19580 with the participation of
(USA) from,
,
about,2,000 peroonsi among whom were 102 delegates of other
countrieso.In the 22 scientific-technical sections move than
.90 lecturea:were delivered concerning various problems of
ohemi.cal teobnologyq sconomyt organization of production and
~chemical engineering training. Brief outlines of most part of
the.lectures werf Aistributea among the partitipants. The
authors.of thir mention a great number of lectures, all
of which were by American scientists, and they'
Card 113 state that sot a of chemical engineers in the USA

~.the Ampiicin Congress of Chemical Engineers SOV/30-59-5-35/43
At
are working .in Atomic research at present. Th~ authors stress
the friendly attitude and the hospitality offered to Via
-ittee
Soviet delegates by the.heade of the organizational e
by-many US-ecientista. In many speeches and lectu-
American-soientists and leading personalities of the s%wmioal
industry mentioned'the rapid development and the sucne~,.fj
achieved.by.sciencet technologyand higher education in the USSR.
Although to"a limitedlextentt the authors were offerei~ the
possibility of participating in excursions to some scientific
research institutes and to industrial enterprises.-The visit
paid to a scientific research laboratory for the chemical
technology of mineral fertilizers is recalled'as having been
of special intereotj and the very extensive use of liquid
fertili;lre madein the'USA is pointe,d out. Mention is also
~made of the factory "Plastics and Coal Chemical Division" con-
-,cerned with the processing of pitcoall bitumen, and organic
synthesis, and.it'is stated that the procedure introduced a
abort time ago in the above factory for'the production of phenol
and acetone doer essentially differ from the one worked
out very much n the USSR by P. 6. Sergeyev and his
card 2/3 co-workers, Tb emphasized in conclusion, that the

At the,American Congress of Chemical Engineers SOV/30-59 5-35/43
Soviet.delegates were given. the po6sibility'of getting acquqin-
ted with some achievements of American obomioal engineering
and of entering in personal contact with American scientists
and industrial representativeag whose great hospitality is
mentioned again. At a press conference in Philadelphia and
during a lunch with the professors of the Massachusetts
Technological Inatitute.the USSR delegates explained some.
achievements of Soviet Chemistry and answered questions con-
cerning the development of the chemical industry and the
organization of chemical higher education in the,USSR'o The
hope is~expressed that this exchange of opinions may se e
to consolidate the friendly relations and the exchange of
scientific achievements in the field of chemistry between the
two countries.
Card 3/3

HALYUSOV, V.A.; MALOFZYJIV, N.A.;_ZH&VORONKOV, N.M.-, Prinimala uchn.stiye

2'1 ( 5) SOV120-125-3-32163
AUTHORSt Matveyevj K. 1.p Uvarov, 0. V., Zhavoronkov, N. M-9 Correspond-
ing-Memberf AS USSR
TITLEt e Separation of Chlorine Isotopes in the
of.th
The Coefficiente
.
,
Equilibrium Evaporation of HCl (Koeffitaiyent razdeleniya
izotopov khlora pri ravnovesnom isparenii HC1~
PERIODICAL: 'Doklady Akademii nauk SSSR, 1959, Vol 125, Nr 3, pp 580-583
(USSR)~
ABSTRACT: The authors determined the influence exerted by the amouInt of,
the value of the coefficient of separation. The
impurities upon
,
computation Avan m4do in a,proyinionul munner t0oording to
Rmyleigh's equation. A diagram illuatrates the results, i.e. the:
coefficient of separation as a function of the coefficient of
enrichment F and of the degree of concentration. The liquid
hydrochloric acid was evaporated out of a cylindrical vessel
with conical bottom. Two figuree illustrate this vessel which
Was contained in a vacuum jacket, as well as the scheme of the
whole evaporator. The experimental conditions are listed, and
the experimental results are shown in the following table:
Card 1/3

SOV/20-125-3-32/63
The.Coefficients of the Separation of Chlorine Isotopes in the Equilibrium
Evaporation of HCl
T P P a
experimental CK
computed
167 190 1,0221 1.0022tO.OOO25 1.0022
173 285 1-017 1 00193tO-000125 1.00194
181, 534 1.012 1-001#0,0001 i.ool,6
185 1.0014
189 76o 1.0013
The temp erature dependence of ln a is expressed by the equation
ln a a 1.12846 0-0055, where T denotes the absolute zero. The
T
resultan t small value of of (at the norma l boiling temperature of
1-0013)' indicates that it is not advisab le to employ the
rectific
Card ~13 ation of HCl for.the purpose of separating chlorine

~5 (2), 21 .(5)
AUTHORS: Sevryugova,~ N*:N&g Uvarovp Oo Vol SOV/20-126-5-36/69
Zhavoronkov,..N. M., Corresponding
.;- ffe-m-ber AS-MSr-
TITLE: Separation of Boron Isotopes by Boron Chloride Rectification
~ (Razdeleniye izotopov bors. rektifikatsiyey khloristogo bora)
PERIODICAL: .- Doklady Akademii nauk SSSR, 1959, Vol 1261 Nr 51 YP 1044 1046
(USSR)
ABSTRACT: At the beginning, the differences between the two boron iso-
topes B10 andB11 are indicated (Ref 1) is tope B10
The light o
is used for filling neutron counteral besideag it can be used
as a protection.againat neutron radiationg and for regulating
the operation of reactors. The separation of boron isotopes is
achieved bY 5 different methods: a) electromagneticallyo b) by
thermodiffusionp a) by means of,diffusion by vapor# d) by the
chemical isotope exchangeg and a) by rectification. The methods
a) and o) make possible a high degree of separationg but are
little productive. The method-b) failed. At presentt the two
latter methods d) and a) can be regarded as moat convenient for
Card* 1/3 the,BIO-production. Both of them have been chemically developed*

Separation of Boron Isotopes by Boron Chloride BOV120-126-5-36169
'Rectification
~The authors think that rectification isone of the.most eco-
nomicAl, m6thodif-They'oatried out the rectification of ths.
3 in oolumns.of various types of.construction (Fig 1). The
procedure is described in detail. Figure 2 shows the course of
10
the increase in B 01 in the retort liquid. Within.26 daysp a
3
5-fold enrichment was obtained at a content of 100 cm, liquid
in the distillation vessel. The stationary phase was not at-
tained during the period mentioned. The calculation showed that
the (maximum possible) separability of the column is equal to
600 theoretical steps* This should guarantee,ahe obtaining of
a product with a content of about T5 M014 B C1 An approxi-
Y
mate calculati showed that the production method for ale-
on
mentary boron described here is acceptable from an.sconomical
point of view. There are 2 figures and 5 references, 4 of which
are Soviet.
Card 2/3

66496
0
BOV/20-129-1,-44/64
AUTHORS: Orlovi V.. Yu. 9Zhavoronkov, N. M., Corresponding Member, AS USSR
TITLE: Thn Effect of Ultrasonics on the Absorption of Carbonic Acid
G~,, e~by Water
:-PERIODICAL: :-Doklady Akademii nauk, SSSR 1959-, Val 129, 11r 1, pp 161-164-~
'(USSR)

ABSTRACT. iments ahowed.that the absorption of CO in H0
Preliminary exper 2 2
in increased'considerably.by ultrasonics. To obtain an exact
understanding of the existing relationships an apparatus was
:constructed (Figs 112) in which a film of watero in counter-
current to CC :flowed through a barium titanate cylinder used.
2
au.sound tranemitter. Generators of types UZG, GU-3, and RFT-602
were applied. Frequency measurements were carried out by means
of the oscillograph type 90-7, and,the generator type Cgs-6.
The barium titanate cylinders (Table 1) were made partly at the
~.Gosudarstvennyy,elektrokeramicheakiy institut (State Institute
of L,"lectroceramioo) and partly at the Akuaticheskiy institut
AN SSSR (Institute of Acoustics AS USSR). Table 2 gives the val-
Card 1/2 CO 2- content obtainedp C
0 equilibrium con,;,...,
us s f or C/C
p
p

66496

-129-1-44/64
'iCV/20
The, Effect: of UI tra soni 6 a on the. A bo olr.*p t i o nof Carbonic Acid Gas by 'Jater
oohtvation at thoreopective Aemporaturo). I;xperime'ntal du ta'are
given in table 3. Porma tion of circular waveB (wave intervals
about 1 mm at 100 kilocycles)
about. 3 mm at.M0 kilocyclee. and
,
and cavitation were observed. The dependence of the rate of ab-
sorption on theultrasonic frequency is shown in figure 3-
50 kilocyoles proved the most effective (CO -concentre-tion rais-
2
wherea6 both 800 and 100 kilocycles raised -the CO
ed 4-fold),,
,
concentration 6 ncrease in 2
nly 2 1/2-fold. An the intensity
2
of the tiltrasonic waves above 2 3W/CM led to partial drying
up:of tile water film. R. A. Ivanova took part in the experi-
ments. The authorsthank B. I. Konobeyev for criticism of the

papar.:,There are 3 fie, ences, 2 of
-ureB, 3 tables, and 3 refer
which-are Soviet.-,
ASSOCIATIONt flauchno-issledovatelfskiy fiziko khimichoukiy inatitut im.

L. Ya. Karpova cientifi
(S c Resea;ch Institute of Phyaical
Chemistry imeni L. '.Karpov)
~-,SUBMITTZDt July 6, 1959

Car
d 2/2

-ui UC(CFo---- ---- -------
-f FC30
SOV/89- 8 -1-24/29
-AUTHOR:. Zhavoronkov and Sakodynsky, K. I.
~TITLE:-~ Scientific and Technical News. At the Institute of Physi-
cal Methods of'Separation (German Democratic Republic)
PERIODICAL: Atomnaya energiyal,.196o, Nr 1, pp 81-82 (USSR)
'ABSTRACT: "In September of 1959, through an invitation by the German
Academy of Sciences in Berlin, the authors of this article
visited the Institute of Physical Methods (headed by J.
Muhlenfordt) in the city of Leipzig. It is the center,
in the.German Democratic Republic, of experimental work
on the stable isotopes. The Institute was organi7-.Ad in
1955, Its basic requirement is the expansion of research
and cooperation on the use of stable isotopes among the
scientific and other related organizations. The Institute
does a~great deal of work on the application of the
stableisotopes to chemistry, biology, medicine, geology.,
,
etc.;,it also develop6s
the methods of working with the
Card 1/2 stable isotopes and works on the theory of separation

7Institute of Physical Methodsof. SOV/89-8 -1-24/29
'Separation.(German Democratic Republic)
rocesses.I~*Thern are sixAepartments in the Institute:
~the experimental separation through rectification,
M
headed by E. Kr8l1 2) the experimental separation through
the chemical exchange, headed by K. Wetzel; ~3) the theory
of separation methods, headed by G. Fogt; (4 the theoreti-
cal,,headed by G. Voigt; (5) the analytic, headed by G.
Birkenfe,ld; and (6) the application of stable iaotopes,..-
headed by )f. Habner. All the above departments.are
involvedin production of stableAsotope concentrates
of hydrogen,'boron, carbon, nitrogen, and oxygen. Con-
struction is scheduled of the new powerful units for
an expanded production of stable isotopes and the con-
centrates BO by a method of the exchange distillation
between BF and its groupings with anisole. Besides
3
fulfilling its ownrequirements, the Institute performs,
the icoOpo::rknalysis ror all related organizations In the..
Clarman Demooratia Re ubli
Card 2/2 p C.

S/064/60/000/02/15/025
B022/BO05
AUTHORSj Malyusov,'V. 1.9 Malafoyevy N. I., Zhavoronkov, N.,M.,-
61
TFM -64
TITLE s -Thin-layer Rectification of the Mixture Styren Ethyl
---Ienzens A
PERIODIdAL'o,'.Khimicheskaya promyshlennostlo .1960, No. 29 PP-153 157
-TEXT s ~The separation of the mixture styrene - ethyl benzene under
industrial conditions is- carried out in plate columns under high vacuum;
difficulties &rise, however, due to polymerization of styrene which occurs
*underthes.e conditions in spite of all countermeasures. An attempt was
.,made to improve the c onditions by using columns with packings of Irregu-
bl~
jarly shaped bodies instead of-the plate column because the former'show a
lower hydrdulic.resistance than the latter. It must be assumed, howeverg
that in thin-layer rectification in columns with regularly shaped caps a
considerable reduction of temperature.and a suppression of polymerization
..in the lowerpart of the colurn will be possible. The distribution
coefficient a in the system investigated, and the phase equilibrium
conditions are measured,(T!,, Fig. 1 shows the dependence of the
Card.1/2

Thin-layer Rectification of the Mixture B/064,/60/000/02/151025
Styrene -Ethyl Benzene .3022/BO05
distribution coefficient a on the concentration of ethyl benzene in the
liquid at different pressuress Fig# 2 shows the equilibrium curve for the
system styrene - ethyl benzensiat different pressures. The masetransfer
on rectification in the film is investigated by means of a device the
diagram of vhioh in shown in Fig. 3. The height ho Which is equivalent to
the theoretical plate number# is computed by squat ion (1). Table 2 shows
the dependence of the.height..equiv,alent to the theoretical plate HETP)
oft,the height of the mois transfer unit computed by equation -M'on
the density of spraying. Fig- 4 shows the dependence of HETP on the
density of spraying.4quation (3) was derived for the laminar current of
vapors. Fig. 5 shows a comparison of the experimental results with the
equation (3) in the case of laminar vapor current.
Table 3.oontains data on'the dependence of HETP on pressure# Fig. 6 shows
a comparison of experimental results with the results of equation (4)
obtained for turbulent vapor ourrentag and Fig, 7 the dependence of HETP
on pressure in the form of a diggTaM. V. B#,Falikovskiy is mentioned.
There are 7 figures, 3 tables, P. 12 referenoess 7 Soviet and 5 American.
'Card 2/2

ZHAVORCHKOVO ROM.; GILIDWLATV IVA-0 in-zh.; RAW V-X-, kand.tekhnonauk

s/o64/6o/ooo/oo6/6oa/o11
B020/BO54
AUTHORSt _,:Malafeyev, N. A. Malyusov, V. A., and Zhavoronkov. N. M.
TITLEs S tudy ofthe Process of Azeotropic Distill'ation ~of a~~
:Styrene Ethyl- Benzene Mixture
PERIODICALs. Xhimi,cbeakaya promynblolnost', 1960, No. 6j PP- 54-58
TEXTi The 4uthore etudied7th*.~effeat ',of.oomo,oubatances an tertiary
components in the azeotropic distillation~of styrene - ethyl benzene
mixtures,'and determined -the dependence of the composition of ethyl
.'benzene azeotropes with.the third component on pressure (or the corres-
ponding temperature), as well,as the periodic distillation of.the styrene
ethyl benzene mixture with n-propyl alcohol. Tertiary components u 11 ed were-/
acetic aoidq diethyl carbinoI7 n-propyl-, isobutyl-, and isoamyl alcohol,
all of whichform azeotropes'with ethyl benzene and (except for diethyl
carbinol), at atmospheric pressure, also with styrene; the boiling points
of these azeotropes arep however, higher than those of ethyl benzene
azebtropes. The.apparatus used for the azeotropic diatillation of the
styrene - ethyl benzene mixturA insisted of a rectifying column, a
Card 1/3

Study of. the Process of Azootropic Distillation S/o64/6o/ooo/oo6/oo8/o111
-Mixture
Pf a Styrene 7 Ethyl Benzene B020/BO54
boilero a condenser, a water-,Jet pump, and a graduated test glass to
-rene
eollect the.distillate. The binary mixture sty - ethyl benzene and
the~ternary mixtures styrene - ethyl benzene - third oomponant were
rectified with this appars.,tue,~Styrene losses in the intermediate frac-
were calculated on the basis of experimental resultal the losses
were,smallest with the use of n-propyl alcohol and diethyl earbinol* In
connection with the extraction of tho third component, the authore.studied
the.effect of pressure.between .15 and 760 torr on the composition of.the
azeo.tropes.ethyl benzene -~ third component. Table 2 gives the results of,,
rectification.of a mixture'of ethyl benzene - acetic acid at a pressure
of;100 torr,. Fig. 2 graphically shows the temperature dependence of the
~composition of azeotrope.s of ethyl benzene with acetic aoid, isobutyl-p
-n-butyl-,,and n-propyl alcohol. Fig. 3 shows the dependence of the vapor
pressure of 1000/(t + 230) forthe azeotrope of ethyl benzene and
n-propyl alcohol and:the pure components, Table 3 gives the calculated
pressureranges in which the dzeotropes inventigated are stable, as well
as their upper temperature limi, The azeotrope of 9thyl benzene with
acetic acid is stable at almost -ressuret the next best-suited is
alcoholsince its ~w-,-P vith ethyl benzene docomposes at
Card 2/3

Study ofthe Process.:o'f.Azeotropim-.I:~istillation S/064/60/000/006/008/011
of a Styrene Ethyl,.Benzene Mixture, B020/BO54
-about 1.3 atm.Fig.A shows the change of,boiling point and refractivo
.,index of the individual 'fractions as dependent an the total amount of
'distillate.1heresults of distillation were used to calculate the styrene
loss,es in the intermediate fractions with a styrene content of from 5 to
95%..With the use of n-propyl..alcohol as third component in the azeotropio
distillation, the separating efficiency increases as compared with the
distillation of the binary Mixture styrene - cthyl benzene. Further
investigations will be necessary to clarify the convenience of an azeotro*
-distillation.of the mixture styrene ethyl benzene with n-propyl alcohol
as third component instead of the distillation of the binary mixture
-styrene - ethyl benzene, There are 5 figures, 4 tables, and 9 references:
2 Soviet, 6 US, and 1 British,
Card 3/3

AUTHORS: Gilldenblat, 1. A.,' Zhavoronkoyp 1. M., 8/153~60/003/01/024/058
ZOII/B005
_,...;.TITLEj, Spectrophotometrio Determination of~FAphthalenelin the Gaseous Phase
-Izvestiya vyis.hikhuchebnykh zavedeniy--iChimiy i khimieheskaya
PERIODICLL% a
-'.takhnol6gly 1960 'Vol: 3 vNr,l,-p gf--95 (USSR)
P
TEM The authors proved in.their paper the efficiency 'of UP spectroscopy by-the
example of quantitative determinatio.nof small amounts of naphthalene vapor mixed
with air. They examined,the hitherto insufficiently studied spectrum of
naphthalene vapor by an SY-4 speotrophotomete 'r. The authors used sublimated
naphthalene of tbe.11pro analysill.type. Two methods were used to record the
:,.spectrum and to carry out calibrationmeasuremente3 1) Some naphthalene crystals
were evaporated.in.the euvette, 2) air saturated.with naphthalene vapor was led
through-the euv4tte. In both casesp the temperature was kept constantf and the.
optical.density was measured. Both methods yielded the same results. Figure 1
shows spectra of naphthalene vapor saturated at 2 temperatures. The absorption
peaks-ean be beat used for the-quantitatiye analysis. Figure I also shows that
~tbe seationof maximum absorption lies in the shortest wave range of the spectrum.
This.seation obviously corresponds to the 3rd line group of naphthalene. It in
-known from.-ite.solutions butbas not at all been investigated with respect to the
Card:1/3

6967o
'Spectrophotometric Detei-iiination of Naphthalene in .13/153/60/003/01/024/058
the Gaseous ~Phzse B011/B005
vapor.-But thisvery line group can be beat used for determining very small
naphthalene amoitntso Thereforol.the authora,plotted the spectrum of saturated
vapor in the-range of.207-- 223 m1b, at several temperatures (Fig 2). They had to
:establish experimentally the temperature dependence of vapor pressure of,
naphthalene (between 16 and ,500) since published data are quite contradictory.
This was performed by the dynamic method,of saturation of the air jet by gravi-
metric determination of the sublimated naphthalene quantity. An equation whish
see was derived from the results evaluated, It was used together with the
measurement data ofoptioal density. Figures 3 and 4 show the dependence of
optic density o.n the naphthalene concentration in the gas phase (expressed in
~.torr) for seve'ral wave lengths which correspond to the absorption peaks (length
.of Guyette 1.00.and,30 mm, respectively). The curves determined represent the
quantitative basis for thedetermination of naphthalene in thegaa mixture. The
..curves in figure 3 are better suited for relatively high naphthalene coneen-
~trations, thoe.9 in figure 4 for a very low naphthalene content. Finally, the
authors state that the determination of even very small quantities of one
-component in the gas mixture is,possible without very complicated measuring
:app aratus (Ref 8). The student A. So lurmanov took part In the investigation.
Card 2/3

S/078J60/005/010/017/021
B004/BO67.
~A., Zhav
'AUTHORS: Malafeyevg' N. A4t.M~lyusov V
91
TITLE: ,,Partition.Coefficient of tassium dium Mixtures on
Evaporation in High Vacuum
ERIODICA-.'~ Zhurinal neorganichesk6y-khimii,.1960, Vol. 5, No. 109
pp. 2342-2345
TEXT: In earlier papers (Refs. 1,2), the authors studied the temperature
dependence of the artiti6n coefficient in organic.binary mixtures for the-
following cases:~ 15 partition. coefficient a on evaporation under
equilibrium, conditions, in, sealed vessels; ~) partition coefficient,aM
on evaporation~under non-equilibrium conditions (on condensation)v
with the,mean free path X of the vapor molecules being longer than the
distance, h, between vaporizer and condenser; 3) the cases for X 4, h.
The authors found that at h/;kcL--100 - 150 the coefficients ap and am
become equal. In the present paper, they report on the.determination
of the partition coefficient oy, qvaporating a mi.xture of potassium and
Card 1/6
2,-

84218
Partition Coefficient of Potassium Sodium S/076/60/005/010/017/021
.:Mixtures on.Evaporation in High-Vacuum B004/BO67
sodiumi Fig..1 shows the evaporation apparatus constructed from BA 1-T
(EYa-1-T) stainless steel, Fig. 2.shows the scheme of.the entire-unit with
BH -461--M (VN-461-M) forepump and 4BA-100 (TsVL-190) diffusion oil pump.
The experiments were made at 275 - 3700C and 2.10-5 - m0-3 torr. In the
samples.taken from the condenserp potassium was determined to be
perchlorate from alcoholic solution. The partition coefficients obtained
for the various temperatures are given in a Table. Fig. 3 shows
a - f(tOC), and,compares the experimental results with the theoretical
curve.s~for a and aM calculated according to Ref- 4- For the sodium vapor-
''moleculest t9e mean free path 2L_was determined ,from equation
A I /'-r2 nn & 2 - (n - number of'molecules per,unit volume, diameter of
~the molecule). X was 1-56 cm. at~2750C, 0.61 cm at 3000C, and 0.115 cm at
3500C. Hence, the following values were obtained for h/X - 4-5, 11-5, and
-'61. Since they were between 1 and.100-150, the curve a - f(t) was between
-the curves for a and aM which corresponds to the theoretical conditions.
The authors mentLn G. V Xistyakovskiy. I. V. Aristova took part in'the
experimental work. There are 3 figures, I table, and-IT reference3:
3-Soviety 3 US, 1 British, 9,nd lepman.
Card 2/j'