SCIENTIFIC ABSTRACT B.D. DOBYCHIN - S.L. DOBYCHIN

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000410710016-1
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 13, 2000
• Sequence Number: 16
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

NIXITIN, A.I., prof., otv. red. ;-DV~DIN~B.D ts-IwDf. , zam, otv. red.;
ABW1OV, K.T., dots.j red.; YAZANTSEV, A.I., prof., red.;
TMFErEV, S.1.0 prof., red.; KHODOS, Kh.B., prof., red.;
BOLOTOV, M,P,, prof., red.; SHERSHNEV, P.A.; prof., red.; VAYS,
S.I., prof., red.; KLIMOV, K.A., dots., red.,- SWENOV, V.V... dots.j
red.; WMAKOV, B.I.j, dots... red.;
(Materials on the influence of phy ical,, chemical and biological
factors on the animal and human or:anism]Materialy o vliianii fi-
zichookikh, khimicheoldkh i biologicheakikh faktorov na organim
zhivotrWkh i choloveka. Irkutakp 1961. 317 p. (MIRA 15:12)
1. Irkutsk. Gosudarstvennvy meditsinskiy institut. 2. Zaveduyu-
shchiy kafedroy terapevticheakoy stoiratologii Irkutskogo medi-
tsinskogo instituta (for VaYs). 3. Zaveduyushchiy kafedroy fa-
kulttetskoy khirurgii Irkutskogo maditainakogo instituta (for
Dobychin). 4. Zaveduyushchiy kafedroy infektsionnykh boleznoy
Irkutskogo meditsinskogo inBtituta (for Harnakov). 5. Zavedu-
yushchiy kafedroy normallnoy fiziologii Irkutskogo meditsin-
skogo instituta (for Nikitin).
(PHYSIOLOGY, PATHOLOGICAL)

DOBYCHIN, B.S.
Automation of the are furnace in electric steel malting shops.
Sbor.rats.predl.vnedr.v proizv. no.5:17-19 160. (KMA 14:8)
L Kuznetskiy metallurgicheskiy kombinat.
(Electric furnaces) (Automatic control)

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t7

USSR/Chemical Tezhnology-
Chem:tcal Products and Their Application Silicates.
Glasq. Ceramics. Binders, 1-9
Abst Journal: Referat Zhur - Khtmlya, No 2, 1957, 5175
Author: Dobychin, D. P.
Imetitution: Academy of Sciences USSR
Title: The State af Silicic Acid in M-i-XcToxous Glass
Original
Pub I " cat-ion: Sb. Stroyenlye stekla, M.-L., AIN SSSR, 1955, 176-180
Abstract: it is shm experimentally that in the interstices of sodium boro-
sa-icate glass no secondary sil-IcIc acid is formed. The assumption
is made that leaching with acid, of sodium borosilicate glass, results
In the formation of a specific duall --framework structure: a principal
framework, forming large channels of hundreds of angstrCM units,, and
of a more dispersed network, that fills these large channels, having
interstices of 15-16A in d:~ameter.
Card 1/1

C 12 ye-1,1111 7f)ja~
USSR/Chemical Technology. Chemical Products and their Application. J-12
Glass. Ceramics. Building Materials.
Abs Jour: Referat Zh.-Kh., No 8, 1957, 27613
Author D.P. Ddbychi~-------'--
Inst
Title Differentiation of Glass Structure at Thermal Treatment.
Orig Pub: vSb Stroyeniye stekla. M.-L., AN SM, 1955, 318-319.
Abstract: The author disagrees with P.P. Kbbeko, who asserts that there is
no differentiation into an insoluble 5keleton and a lixiviating
part in sodium-borosilicate glasses. Experimental data show that
the diver ion of pores increase from 10 up to 80 A, if tempered
sodium-borosilicate glass was fritted two weeks at 5300- The
incres, e of pores is a proof that processes of differentiation
into an insoluble skeleton and a lixiviating part take place at
the thermal treatment of glass. See also RMKhim, 1956, 75675;
1957, 5174, 5175-
Card 1/1 -12-

Electron-miscroscopleA study of Ilia bytimlion of notIV6 lklilmilla.
TT -IM - _77TT - /
y4o~. P. ~LM 'k AIIADAI, AA-411. S.s7,'7,r .177 5', -7rT--
, W ~*,ctrnlt Iniclim.;copy that lim-ly divid(It Y-almllill,t
6-nivertt-tt lo hydrart,51 lite by cxIKk;l%rt, to ol(IiA air at
room tvi lp-, During 4 "inowlis the 1~nettmiwt of the hydrat'A
laver into Itic ImiticloA.was of tha older of US It. 1 he prfx~mti vil
dCClcX%C ill U10 Njie6flik: sllrhiCc, of t11,:
'11111nilm. F, W. KlRtcwFl1!l~.m

vc,
TJSSR/Kinetics - Combustion. Explosions. Topochemistry. Catalysis. B-9
Abs Jour. Referat Zhur - Khimiya, No 6, 1957, A636
Author D.P. Dobyehin, T.F. Tsellinskaya.
Inst _W~sdemy of Sciences of USSR.
Title To The Question of Specific Catalyst Activity of
Alumosilicates.
Orig Pub Dokl. AN SSSR, 1956, 109, No 2, 351-353
Abstract The reaction of cumeae cracking in a flow system at 4000
on three alumailicate catalyst samples was investigated.
Thijee sEunples were of an identicall cheml.cal composition
and differed by the size of the specific surface (S =
282 to 496 sq.m/g), porosity and weight per unit of volu-
me (&= 0.66 to 0.83 9/cub-cm). ,me aut-hors found that
the catalytic activity of a unit of accessible surface of
any of the catalysts under study was tb(: same in the same
reaction, and they propose to use the Iroduct of the spe-
cific surface of a sample and its weight per unit of
Card 1/2 - 278

11
USSR/Kinetics - Combustion. Explosions. Topochemistry. Catalysis. B-9
Abs Jour : Referat Zbur - Khimiya, No 6, 1957, 18636
volume A - S 6 as a measure or the catalytic activity
(Aj of c-...-acking alumosilicate catlysts of identical
chomical composition.
nara 2/2 - 279 -

Te'p
USSIV~Pbysoic~al YM~~~ - Kinetics, Combustion, Rqlosions, Topo-
chemistry, Cata.17sis. B-9
'*Abs Jour: Referat. Murnal nimiya, No 3, 1958, 7245.
Author :_2.P. Dobychin.
Inst Academy of Sciences of USSR.
Title Reaction Kinetics on Aging Catalysts.
Orig I'lab: Zh. prikl. IcIbInli, 1957, 30, ito 4, 546-552-
Abstract: Particular solutions of kinetic equations for processes of the
1st order on aging catalysts am given. The following eq=tion,
is derived for a motionless catalyst layer from the general
equation given by O.M. Todes (Izv. AN SM. Otd. khJm. n., 1946,
5, 483) in the case of line activity decrease with time until
some stable activity is attained; C(X,t) = 0. exp f-(ao - o,-t
+ ol, IC /2 -C7, where Co is the initial concentration of the ini-
tial substance at the entrance into the reactor, C(x t) is the
concentration of the initial substance when leaving 4~e rector,
Card 1/2 _28-

USSR/Physical Chemistry - Kinetics, Combustion, Explosions,, Topo-
chemistry, Catalysis. B-9
Abs Jour: Referat. Zhurnal Fhimiya, No 3, 1958, 7245.
x is the length of the catalyst layer, t is tine, -,- is the
contact duration, so is the initial activity, ex is a factor.
After the time moment t = top i.e.; after the constant activity
ac has been attained, C(X,t) - Co exp (-a,-=). In the case that
the activity drops exponentially with time, C(X,t) = Co exp
L'-(ao/cK. ) - e*,t (eO't-1)1. For a moving catalyst layer and
in the case of exponential drgp of its activity at work, CL = CO
exp f-( ot, or lo~ v) (l - e C11, where CL is the concentration.
of the initial substance when leaving the reactor, and v~'* C3?ro-
bably %t7 (sic) is the time, during which the catalyst -remained
in the reactor.
Card 2/2 -29-

AUTHOR DOBYCHIN D.P.j KISILIVA N.N. 20-2-37/67
TITLE --dn -the nature of thermal transformations in alkali boro-
silioate glass. (0 prirodo termichookikh prevrashoheniy v
shoholoohnoboro-silikatnykh steklakh.- Russian)
PERIODICAL Doklady Akademii Neuk SSSR 19579 Vol 113, Nr 2, pp 372-375
(U.S.S.R.)
ABSTRACT As known the structure of porous glasses, whioh are formed
by treating alkali-borosiliosto glass with acid solutions
(1-00 depend on both the composition of the initial glass
and of its heat treatment and of lixiviation conditions. With
the intention of examing the problems of the structure of
porous glasses-and-stuaing the composition of sodium borosili-
cats glass the authors investigated the kinetics of the pro-
oesses in this.-la-tter glass, which here occur on the oooasion
of beat-treatmout. The.sorption method of the structural in-
vestigation of porous glass was applied by means of a quartz
scale. Water served as sorption material. The authors
mentioned already before that after a long heat treatment
at a temperature of 5300 the radius of the pores in the
glass Na-7/23 increases by lixiviation with increasing
duration of this heat treatment. On the other hand already
after a heat treatment of half an hour or longer at a
CARD l/ 5

On the nature of thermal transformations in alkali boro-
silioate glass. 20-2,VjW
temperature of 650 0 the values of the radius and the space
of the pores remain steadyg independent of the lixiviation
conditions in aoids. This demonstrates that the fine-pored
siliaeous earth network extracted alkalis from high-
temperatured glass (treated at 780 is no "secondary silicio
aoid", which might have coagulated in the pores during the
extraction in acid. In the experiment the same glass Na-7/23
from the same fused mass but of two different initial oondi-
tions was heat-treated: A. was hardened down from 8500 and
B. after a rough glowing down from high terperatures and a
following slow oobling. Lixiviation was carried out in a
ECl-solution of 3 n (15 cm3 per 1 g glass; powder, fraction
100 - 150AA,) at 500. The results show modification curves
(ill. 1 and 2) of the pore-radius and -space according to
the duration of the heat treatment at different temperatures
for both kinds of glass. From the shape of the curve it
becomes manifest that there are at least two structural pro-
ceases proceeding in this glass: 1. a faster one whiobL bevomes
evident in a decrease of the radius and the entire space of
the pores and 2. a slower one, which allows these two values
to rise to a certain limit. The velocity of both processes
highly increases with rising temperatures. As the first

On the nature of thermal transformations in alkali boro-
silicate glass. 2D-2-37/07
process does not occur in samples of the A-type, the authors
presume that it is connected with the destruction of the
regions of chemical heterogeneity till then existing, further-
more with the rearrangement of the spatial network of glass
and with the reorientation of chemical bonds. The second, slo-
wer prooeast however, seems to be connected with the diffuse
transmission of the subBtanos into glass. At about 5050 the
authors discovered a critical value (or a small critical
region). Above the latter a short heat treatment (half an
hour at 6500) was sufficient to make the radius value of the
pores of the glass lixiviated by acid steady (and not high).
The authors believe that at this temperature in the boron-so-
dium-regiona an uninterrupted acid-resistant silioeous earth
skeleton begins to be composed. The pore-radius above 5850
becomes smaller with rising temperatures of the heat treat-
ment. At temperatures under 7300 opalescence rises with inore-
asing duration of heat-treatment without a noticeable jerk
in the region of 5850. The increase of the pore-radius in
CARD 3/5

On the nature of thermal transformations in alkali boro-
silicate glass. 2D-247/0
connection with relatively increasing total volume of the
pores denotes that the total number of pores and so the
regions of the chemical heterogeneity falls during the heat-
treatment. The equation of O.M. Todes
1 & L + k . t
N N
0
satisfactorily describes the kinetics of the integration
process of the regions, which are lixiviated by acid, of
chemical heterogeneity (ill- 3). The decrease of the number
of particles when their average size increase given evidence
of processes of an isothermal distillation and rooondeneation.
Explaining the nature and the kinetics of the processes which
occur during the heat treatment of sodium-borosilioate glass
warrants the controllability of the glass production with
a required structures among others of bidispern0aid wide-
porous glass (radius of magnitude of some 100.
(3 illustrations, 2 schedules, 13 citations from publications)
CMW 4/5

On the nature of thermal transformations in alkali boro-
silicate glass.
20-2-37/67
ASSOCIATION: not given.
PRESENTED BY: A.K. TERENIN, Member of the Academy.
SUBMITTED: 10-5- 1956
AVAILABLE: Library of Congress.
CARD 5/5

U
AUTHORS: Dab--chin, D. P., tfiseleva, 76-1-4132
TITLE: The Effect of thQ Ther.,rial Treatment of 3od_4u;,,, 7orosilicate
Glasses on the Porous Structure of Their Residues After
Acid Etchin'; (0 vliyanii ter,.nichesko.; obrabotki
natrovoborocili%ntnykh stek-ol na poristuyii strukturu
prod-Lxktov ikh vyshchelachivaniya v kislote)
PERIODICAL: Zhurnal Fizicheakoy X'hii:iii, 19513, Vol. 32, '!r 1, pp. 27-34
(USSR)
ABSTRACT; In reference 17 the firDt menti-nee a,.ithor showed that the
pore-radii of a porous :;laor, which vias obtaine-1-1 by means of
acid otchinu of the Na-71/23 ul%ss (wlhich ras subjected to
a continuous therwal trcatzie.~t .t 53000 do not reach tiny
constant value but that they fi!rther inercaoc witli the
increane of the durntion of the treatnent of the
orijinal Z;lass. lla-7,~23 denotes no;.r~onition .)f 7 mol %:
Na20, 23 mol ;t D 203 and 70 riol Sio 2' 7n reference la the
two authors showed that thc- thermal treat~~ient of N -7
a /23
tem eratures of ui) to 58, 0caused :it lerint tv-~ ctrictural
procesuou. 0 One quicl-,er, which beco -e.-, :-~-.nif est in a
Card 1/4 decrease of the radiiis tvl -,!; :)f t.~ vol-,:..ne of

The Effect of the Thermal Tre,,it-tent of Soalix.:2 ?orooilic -*t n76-1-4/32
Glasses on the Porous Structu-.-e of Their Residizes Aftcr Pxid Etchin,;
the pores. 2) O:ie rAnver vhic c..,usos -an ir,4-terrizpted
increase of the pore-radi-s as rnii r- increrae of the
tot--1 volume of the -inrac i~,nto I- cortain vLlre depondent
on t,,e In 'lie c:l.-e of the lut process Vito
authors issume thc-t it in connected vit'. Vic, deatruction
of the earlier present (if there vtno a :)rOlir.,.inz-ry heat
treatment' do-,.,.sin of che:nical !,etero,;cneit~, witl- the re-
-arranlr-e-ent of the .-ell witi. the
reorientati3n of cheiic~,l cozlpoll~.Cls ca-usin,-, orlL- ---iall
lattice element displaccuentc.. The 2rd ulower Process,
however, is connected ,-~jth th7- I;rt-.,-,sfer of the substance by
zeans of a diffusion process of the Lreat
do.main,s Lt the oxpence of the 4-i2rTppearancc of small rar-es
correr,pondin- to th,~- 'ziixtic rocordeyis:--tioz; law. Contrary
to reforcncz~ 2o tht- alit'lacro show ti.,ct tho strVettir: of
porous Class is essentiall, deteriined th--- Jivision into
chemical heteroieneity of tl,.e iiii.tial z1ass. At
abolit 5850C a critical value for Vic tenpercture v-zz found.
It divides the he,,t treatment of t1he jass i~ccordinc
to tae properties of the 8orous -lusc obtained froa it. Ato
Card 2/4 te~rperati,rea of ~.bove 505 C a short heat treat:~ent (at 650 C,

The Effect of th~ Thermal Treatmeiit of Sodi?,m Borovilic~!'-c 7 '-1-4/32
C E a ~ -1.
Classes on the Porous Structure of Tli-~Jr RaciLlitc.9 After . i i tcli A
- half an hour) is sufficient for t1i,; -,,iore radius (of tlo
porous 31nss Oltailled J,; :1011~-.,!.-, of -cid to f~c,-i-ire
a consta-it value (r,!,i,;h does not wit . longer
treatmerit but denra-,.uez! witi the rize of th- te:~.~)er:,tizre of
,.he heat treatment of tie initial Jauc) (r--.-fcrcnceo 17, 1C).
At 590 0C poraits Ilast: i 8 obtained- 1?ore radius of
fro-n 18 2o A rjn,! c.t 850 C one of about 8 A. The inde-onden-
cc of the structure of porous -L.,ocza, viliic'A vierc obtained,
fro.-.: t;lass aLm-ples of llhi~;li te::tDcrature", fro:-.i the acie
concentration, as Yell as from the tc..-.i:,e:7~-ti,.re of L,.cid
etchin:-- shows th--t tli:- coc-,ulatiz)n of --ilicic acid in the
,jores does practicvll.? tiot t,~kc placu in t'.-in case. Brt it
takes place in the ----cid ctchin~; of ;laE;s WI-.ich were
heat treated c~t 535 0C. Based o?i t."ic result3 obtained here
the increase of t-',,,: :-Ieacur~2..lents of ~~helical hetero,~encity
domains c~i, be re-irded vc. a recondei-,sat-on proca-sr, Th-i-ch
is the same for all 0 ~elovi tte upper 3palescence
li--'.it (at, abolit 725 C) - Fro~:., olr' --w the
difference bctwec,-.~ tiie porovr,, ctructure of Mix, pr;-,ducts of
Card 3/4 the acid otcl.-in, of have 'Oe,.r; '-e:;.t treated

Tb, Effect of the Theriar-1 Treatment of SoJiu-m Dorouilic,-.te 76-1-4/32
Glasoes oil the Porous Structure of Their :,',esiducr~ After Acid Etchin~
U
beloy, ana above 585 00 ia only of cuborainate ciaracter (as
it is connected :.it~i the inner Dtriictiire of tho boron-
sodium (Iozains). The of t~-.e 1~inetico as well
t-.0 Of tho n iture of the processes ir. N- -74123
glass and heat treatment of thI's subst--.rce it
possible to obtain poroun ijacces with dr~.sirer! striieture,
mono-as well as bidinperse ijanssei,. A c,-nti:-.ious heat
treatment is very effective w1iic',. 0:iakez ro~. o-f t"Ie
structures developed ~:t -..bove 585 C. A heat tre,%t-ient of
ouch a Glass at below 5S50C destroys qttic'zly, the
first process, the find-- silici lritlice within t;-ie '~oron-
sodiu-111, elomains, but t';.e-.c not cO:121et"~-l.- . After
t:-,is tile do-mains of chemicr-l 'ueteroL:eneit,- devclo,., whic'.
corrcai)ond to this low tc:;:peratvrr-. As- 1'. lteu-.-It of Cle acid
etching; of suc.-i a ~Iass a porOU0 1--laso trith a I.,idiuperse
str-,icture is obtained. Th~;--2 are *7 fi-,i; es, 3 tabled, r--.~d
23 references, 19 of which ~re SILvic.
SUMAITTED: July 9, 1956
AVAILA13LE: -TJ)rarY of Congress
Card 4/4

5W, 7(6)
AUTHORS: DpXX2hin2_ P., Pogodayev, A. K. SOV/76-32-11-27/32
(Leningr-ad'j--_.
TITLE: A Sensitive Adsorption Method and Its Use for Investigating
the Porous Struature of Thin Films on Optical Surfaces
(Chuvstvitelinaya adsorbtsionnaya metodika i yeye primeneniye
dlya issledovaniya poristoy struktury tonkikh plenok na opti-
cheskikh poverkhnostyakh)
PERIODICAL: Zhurnal fizicheskoy khimii, 1958, Vol 32, Nr 11, pp 2637-2640
(USSR)
ABSTRACT: As only small amounts of the sorbent film were present in the
investigations mentioned in the title it was necessary to take
into account the parasitic effects, as for instance, the poly-
molecular adsorption on the vessel walls and on the external
surface of the samples. A method was devised where the neces-
Bary sensitivity was obtained by a decrease in volume of the
adsorption system (Fjg 1~_ The determinations of the general
pore volume of 2.10-` am.) can be carried out with an accuracy
of 1%, which in the case of a porosity of about 20% corresponds
to a sarbent film of a minimum of 1 mm3. One part of the ap-
Card 1/2 paratus was produced from chemically resistant glass Nr 23 or Nr

SOV/76-32-11-27/32
-A Sensitive Adsorption Method and Its Use for Investigating the Porous
Structure of Thin Films on Optical Surfaaei
29. The test disks of the glass to be investigated (diameter
20 mm, thickness 0.3-0.5 mm) were polished and pickled prior
to their investigation, and then the 1000~t5O I thick film was
applied. Surfaces of 50-WO cm 2 can be measured using 1 mg of
the adsorbent. The experimentally obtained adsorption isothermal
lines of steam ~n'films on glass K-8 (Fig 2) and TK-1. (Fig 3)
represent a summation of the adsorption in the pores of the
film aa-well-as on the vessol surface and the external surface
of the sample. The method of calculating the actual adsorption
isotherm in the pores is men-tioned. The calculation results
obtained show (Table 2) that the condensation of water between
the particles, on-quartz sorbents up to p/P - 0-97 - 0-98
(at particle sizes of 5,k and more).may be neglected. With pores
-that are so small that no hysteresis loops occur on the ad-
sorption isothermal lines the usual representation of the ad-
sorption surface cannot be used. There are 4 figures, 3 tablesy
and 9 references, 7 of which are Soviet.
SUBMITTED: March 6,, 1956
Card 2/2

AUTHORt Dobychin, D. P. 2o-119-5-35/59
_~
TITLEs r
The Conduction of a Topochemical Diffusion Process at a
Constant Rate (Provedeniya topokhimicheskogo diffuzionnogo
protsessa a postoyannoy skorostlyu)
PERIODICALt Doklady 1kademii Nauk SSSR, 1958, Vol. 119, Nr 5,
pp. 967-97o (ussR)
IBSTRACTt The chemical destruction of solids in which a layer of
solid products is formed on the surface of these bodies
is partly slowed down by the diffusion of the reacting
substances through this layer in the reaction zone. To
these processes belong the oxidation of various metals,
the combustion of substances with strong ash formation,
the burning out of coke from aluminum-silicate catalysts
in cracking, the leaching of alloys, the production of
porous glass on the action of acids on sodiumborosili-
cate glass etc. In those cases where the determining
stage of the process is the diffusion in the porous lay-
er, the concentrations of the reacting substance in the
volume (in the solution, in the gas) and on the outer
Card 1/4 surface of the porous layer can balance and then they do

The Conduction of a Topophemical Diffusion Process 2o-119-5-35/59
at a Constant Rate
not differ from each other. First the denotations used
are explained. In a process which had become steady the
quantity of the diffusion current of the reacting sub-
stance through the porous layer to the reaction zone is
equal to the reaction velocity. I corresponding equation
is put down. The solution by L. 1. Vulis (Ref. 1) for the
case of a constant concentration of the reacting sub-
stance in the volume of the gaseous or liquid phase can
be replaced by an approximation solution taking into ac-
count the limiting conditions. In the case of such a con-
stant concentration aOlt usually a quasisteady process
takes'place. The gradient of the conoentration-oa/Z5x is
then practically constant at any given moment along the
whole layer. The velocity of the process is variable.
Because of the great difficulties in the case of the
exact solution the author uses an approximative solution.
The linearity of the increase of concentration of the
reacting substance in the volume during the whole process
is taken as condition for the constancy of the velocity
Card 2/4 of the process as well as of the effective concentration

The Conduction of a Topochemical Diffusion Process 20-119-5-35/59
at a Constant Rate
in the reaction zone. The velocity of the production of
the porous layer increases proportionally to the square
root of the increase velocity of the concentration of the
reacting substance in the volume. For the experimental
checking of the correctness of the results found the pro-
duotion of porous glass by leaching of sodiumborosilicate
glass in an &aid is suited. These experiments were car-
ried out with polished samples at room temperature and
supplied results sufficiently well coinciding with theo-
ry. The chickness of the porous layer actually increases
with constant velocity during the first hours. Then the
velocity of the process decreases as was expected. The
author thanks 0. M. Todea for valuable suggestions and
remarks in the discussion of the manuscript.
There are 1 figure, I table and 4 references, 3 of which
are Soviet.
FRESENTEDt November 23, 1957, by I. N. Terenin, Member, Academy
Card 3/4 of Sciences, USSR.

The Conduction of a Topochemical Diffusion Process 2o-119-5-35/59
at a Constant Rate
SUBMITTED% November 14, 1957
Card 4/4

7-ArRARIYEVSKlY. Hstislav Sergeyevich; HIKOLISKIY, B.P., prof.. otv.red.;
DWYCHINIL.D.P., kand.khim.nauk, otv.red.; SHCHEMEMA, Ye.V., red.;
, -4
LALULUVA, IS.U., takha.red.
[Kinetics of chemical reactions] Kinetika khimicheekikh reakteii.
Loningrad, Izd-vo Laningreuniv,, 1939. 165 p. (HIRA 12112)
1. Chlen-korrespondent AN WbSR--(for Nikollskiy).
(Chemical~reaction, Rate of)

5(2) SOV/80--~32~-3-4/43
AUTHORS: Dobychin? D.Piq Tsellinakayai T.F.
--------------
TITLE: The Effect of Thermal Aging on the Porous Structure and the
Catalytic Activity of Synthetic Aluminum Silicates (Vliyaniya
termicheskogo stareniya na poristuyu strukturu i katalitiche-
skuyu.aktivnostl sinteticheskikh alyumosilikatov)
PERIODICAL: Zhurnal prikladnoy khimii, 1959, Vol XXXII, Nr 3, pp 486-494
ABSTRACT: The aging process of aluminum silicates is chAracterized by a
decrease of the pores with small radius. The aging of highly-
dispersed porous bodies may be regarded as a process of con-
densation in the two-dimensional phase. The energy of the
thermal aging process increases with the surface energy of the
dispersion. The loss of the catalytic activity affects the
gasoline yield more'than the depth of cracking, i.e., the dif-
ference between the used raw material and the unreacted rest.
If gas oil is cracked on aluminum silicate catalysts, "cata-
lytic ultrapgrosity" is observed which consists in the fact
that the large molecules cannot penetrate the small pores.
Card 1/2 The bromine numbers of the gasoline fractions increase with

SOV/'80-32-3-4/43
The Effect of Thermal Aging on the Porous Structure and the Catalytic Activity
of Synthetic Aluminum Silicates
the aging of the catalyst. The redistribution of hydrogen is
especially reduced by aging. This points to the fact that there
are two acid centers on the surface of the aluminum silicates
/ Ref 152
There are ; graphs, 4 tables and 16 referencesp 12 of which are
Soviet, 2 English, I American and I French.
ASSOCIATION: Vaesoyuznyy nauchno-.issledevatellskiy institut neftekhimiche-
skikh protsessov, Leningrad (All-Union Scientific Research In-
stitute of Petroleum-Chemical Processes, Leningrad)
SUBMITTED: July 11, 1958
Card 2/2

5 .1,330 75688
SOV/80-32-10-3-1/51
AUTHOR: Dobychi~i, D. P.
TITLE: Brief Communications. Diffusion of Water Vapor and Flow of
Air In Porous Glass
PERIODICAL: Zhurnal prilcladnoy Ichimil, 1959, Vol 32, Nr 10, pp 2336-
2339 (USSR)
ABSTRACT: The gas permeability and effective diffusion coefficients
of water vapor In sodium boro-silicate glasses with wide
pores were compared with data on the porous structure of
the glasses. The radius of the pores was determined by
the velocity of air flow through the investigated samples
of glass In Knudsen flow according to Deryagin (B. V.
Deryagin, Tr. Ins. fiz. Id'ilm. AN SSSR, 1, 150 (1950). The
air flow velocity through the porous glass plate was measur-
ed by the pressure increase (or decrease) in a closed cali-
brated volume (see Fig. 1) . The resultu of the c.--perlments
Card 1/11 A-
are shown in the table (see table attached). It was shown

Brief Communicatlons. Diffusion of Water 75688
Vapor and Flow of Air In Porous Glass SOV/80-32-10-37/51
that the gas permeability Is proportional to the radius of
pores. The effective diffusion coefficient is a linear
function of the radius of pores. The obtained value of'the
effective2diffusion coefficient for glasses with fine pores
(0.008 5m /sec) and for the glasses with wide pores (average
0.03 cm~~ec) are in reasonable agreement with the value of
diVusion coefficient of water
cm /sec. There are 3 figures;
British, 7 Soviet, and 1 U.S.
ences are: C. M. Tu, H. Davis,
26, 749 (19311); W-M. Jones, Trans.
(1951).
vapor In air D, 0 = 0.282
I table; and 9 references, 1
The 2 English language roi'er-
11. C. Hottel, Ind. Eng. Ch.,
Faraday Soc., 47, 381
Card 2/4

Brief Communications. Diffusion of Water Vapor 75688
and Flow of Air in Porous Glass SOV/80-32-10-37/51
Fig. 1. A sketch of the fixture with double sealing for
measuring the velocity of air flow through a porous glass
Card 3/4 plate.

Brief Communications. Diffusion of Water 75688
Vapor and Flow of Air in Porous Glass SOV/80-"2-10-37/51
Test Nr Specific Qas permeability Radius of Effective
Porosity 3 K
as pores (in A), diffusion
,(in cm/cm
0 g
3
cm
x mm method of coefficient
2 gas flow of water
cm x min. x atm. vapor 9
(ill cm /sec)
0.386 26.6 4 (is
2 0.552 98.5 131K) -
3 0.641 H6.1 1110
4 0.820 210 20 K) -
5 0.432 24 380 0.02 t
6 0.429 40.8 575 OJY23
7 0.514 59.4 8 12 0 0.042
8 0.391 Gi.9 1300 0.044
9 0.284 0.15-0.3 30-40 0.0083
SUBMITTED: Jtnie 11, 1958
Card 4/4

5W
AUTHORS: Dobychin, D..P., Tsellinskaya, T. F. sov/76-33-1-34/45
TITLE: An Accelerated Method of the Adsorption Determination of the
Surface Area of Sorbents (Uskorennyy metod adsorbtsionnogo
opredeleniya velichiny poverkhnosti sorbentov)
PERIODICAL: Zhurnal fizicheskoy khimiif 1959, Vol 33, Nr 1, pp 204-207
(USSR)
ABSTRACT: The method by Brunauer? lDrnmett and Teller (Ref 1), based on
the determination of the adsorption isotherms of gases and
vapors on porous and non-porous adsorbents, is complicated
and tedious. For the method under discussion, howeverg only
the determination of a single point on the isotherm with the
value of the relative vapor pressure of the sorptive p/p. is
necessary. Measurements wore carried out by the statistical
method on an usual arrangement at 16-50C. The measurements of
a considerable number of benzene adsorption isotherms of
various samples of active aluminum oxide and alumosilicates
showed that the molecular layer of the samples (with different
specific surfaces) is filled at practically the same value of
Card 1/2 the relative vapor pressure of benzene. This value is

An Accelerated Method of the Adsorption SOV/76-33-1-34/45
Determination of' the Surface Area of Sorbents
0.21 for Al 0 and alumosilica gel(Table'l).
(P/ps)a 4 2 3
The theoretical basis of the determination method described
is founded on the equation BLIP which is used for calculating
the specific surface. Experimental data, obtained from
investigations during the years 1947-1950, are given.
The paper published by M. I. Temkin (Ref 2) which also
describes an accelerated method of determining the specific
surface came out when the paper under discussion was already
in the press. In conclusion, gratitude is expressed to
Yu. A. Bitepazh, E. M. Kaganova, and B. L. Moldavskiy for the
samples provided. There are 1 figure, 2 tables, and 2 Soviet
references.
ASSOCIATION: Institut po pererabotke nefti i polucheniyu iskusstvennogo
zhidkogo topliva,Leningrad (Institute of Petroleum Processing
and the Production of Synthetic Liquid Fuels, L-p-ningrad)
SUBMITTED: July 10v 1957
Card 2/2

5(4) SOV/76-33-4-19/32
'AUTHORS: Dobychin, D. P., Klibanova, To. M.
---------Th-e--ftegnneration of Alumosilicate Catalysts
TITLE: Model Study on
for Cracking (Modellnoye izucheniye rageneratsii alyumosili-
katnykh katalizatorov krekinga). 1) Methods of Investif;ation
and the Distribution of Coke in the Particle of a Spherical
Alumosilicate Catalyst (1. Metodika issledovaniya i raspre-
deleniye koksa v chastitse sharikovomo alyumosilikatnogo
katalizatora) U
PERIODICAL: Zhurnal fizicheskoy khimii, 19591 Vol 331 Nr 4, pp 869-876
(USSR) I
A13STRACT: In 1947 irrespective of other inved iCations the coke cor--
bustion kinetics with alumosilicate crac'Xing catalysts under
model conditions was started which was completed in 1940. The
experimental results which were obtainc-d during this period
(Refs 10-12) under similar conditions are discussed in the
explanations of the combustion kinetics. The present investi-
Cations were carried out at spherical alumosilicate catalysts
(AC) (Refs 3, 13) because the round shape and the transparency
of the particles favor the investigation of the combustion
Card 1/3 process. The principle of the methods of investigation is

SOV/76-33-4-19/32
I'lodel Study on the Regeneration of Alumosilicate Catalysts for Cracking.
1. Methods of Investigation and the Distribution of Coke in the Particle
of a S~~herical Alumosilicate Catalyst
the photographing of the shifting of the coke combustion
boundary in the sphere and a simultaneous determination of
the amount of burnt coke by a continuous weighing of the
sphere on a torsion balance (Fig 1). The weighing is done by
means of two microscopes of the type 111R-1 while the tempera-
ture was measured by means of a potentiometer PP-1. The pic-
ture of combustion was taken by a camera "Sport" (with a
telephoto lens 11PED11 and an ancillary lens "FED-211). The dia-
meter of the coked zone of the sphere was then measured by
a measuring microscope MIR-12 (Fig 1, some pictures of dif-
ferentstages of combustion). The experiments were carried out
by means of a finely porous ball catalyst put at the disposal
by E. M. Kaganova and B. L. Moldavskiy the coke accumulation
was carried out in a test apparatus (Fig 3) using the kero-
sene-gasoline fraction of an Artem-Malgobek petroleum. A com-
pariaon of the kinetic curves of the intensity of the coked
spherical zones (Figs 51 6) shows that the major part of the
separated coke, approximately 6ejo, lies on the surface and
Card 2/3 that after a layer thickness of 0.2 mm (Figs 8, 9) is attained

Model Study on the Regeneration of Alumosilicate
1. Methods of Investigation and the Distribution
of a Spherical Alumosilicate Catalyst
SOV/76-33-4~19/32
Catalysts for Cracking.
of Coke in the Particle
a sharp decline in the concentration of the coke layer accumulat-
ed in cracking may be observed. The observations made led to
the assumption that the process of regeneration of the catalyst
may be divided into two stages- the combustion of the external
coke layer and the combustion of coke which had accumulated
in the pores, with the latter taking place in the inner range
of diffusion (rig 11~ It was found experimentally (Table)
that vithin the (AC) sphere the temperature during the re-
generation process is practically equal to that of the passing
gas flow. There are 11 figures, 1 table, and 15 references,
10 of which are Soviet.
ASSOCIATION: Leningradskiy nauchno-issledovateliskiy institut po pererabot-
ke nefti i polucheniyu iskusstvennogo zhidkogo topliva
(Leningrad Scientific Research Institute for Petroleum Proces-
sing and the Production of Synthetic. Liquid Fuels)
SUBMITTED: September 6, 1957
Card 3/3

5 (4)
AUTHORS: Dobychin, D. P., Klibanova, Ts. -'4. SOV/76-33-5-10/33
TITLE: A Model Investigation of the Regeneration of Aluminum Silicate
Catalysts of Cracking (Modeltncye izucheniye regeneratsii
alyumosilikatnykh katalizatorov krekinga). 2.Combustion of the
Coke Deposited on the Surface and Coneral Kinetic Laws of the
Process (2. Vygoraniye poverkhncstnogc koksa 1 obshchiye
kineticheskiye zakonomernosti protsessa)
PERIODICAL: Zhurnal fizicheskoy khimii, 19509, Vol 33, Nr 5,
pp 1023-1029 (USSR)
ABSTRACT: A previous investigation by the author showed (Ref 1) that
more than half of the coke deposit is on the catalyst surface
and the remainder is evenly distributed inside the catalyst.
Therefore,. two processes can be distinguished in combustionv
one taking place on the surface, the othAr inside. This paper
deals with the first pro-:~Gss. At first, the dependence of
combustion on the spee& or the ga3 current is measured (Fig 1).
Since the experiments wera carriled out under almost laminar
floving conditions, the oombustlon rate could not depend on
Card 1/3 the speed of the gas current, By 4pp'.,,,ing the V. V. Pomerantsm

A Model Investigation of the Regeneratior. cf A,umirium SOV/11116-33-5-10/33
Silicate Catalysts of Cracking. 2. Ccmbustion of thz Coke Deposited on the
Surface and General Kinetic Lawa of the Pro