SCIENTIFIC ABSTRACT VLASOV, V.G. - VLASOV, V.I.

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• Collection: Scientific Abstracts
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• Document Creation Date: November 2, 2016
• Document Release Date: September 1, 2001
• Sequence Number: 10
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

s/m/62/003/oo6/o07/011
E075/E436
AUTHORS:
Vlasov V.G., Zhukovskiy, V.M.
TITLE: Reiluctiic~n of uranium tr1ox ide with ammonia
PERIODICAL: Kinetika i kataliz, v-3, no.6, 1962., 882-886
''TEXT: The kinetics of reduction o
f U03 was investigated in the
temperature range 300 to k250C,,under 10 to 600 mm Hg partial NH3
pressure. . Amorphous U03 (0-5 g) was heated after drying in high
vacuum-in a circulatory apparatus with,a continuous recording of
2t, weight losses. The composition of eAd products was checked
by their a, 950,.C in air and by Debye-Sherer
to U308
X-ray analysis. Fdri a fixed NH3 pressure, the reduction rate
J'decreas6s with decreasing temperature while the induction period
increaaes.~ The dependence of the rate ok the reaction w on
partial NH3 pressure is given by
PNH3
b -PNH3
W k
1 + bp
NH31
where' k and b are constants (k 1689%/min and
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Reduction of uranium ...
s/195/62/003/006/007/011
E075/E436
b = 0.003 '12 mm-l FIg at 400*C). The apparent activation energy
for the process is 45-3 kcal/mole and practically does not depend-------
on the degree of U03 'reduction. The authors conclude that the-
reduction is realized in the following stages: 1) adsorption of
gaseous NH3 on U03 surface, 2) decomposition of adsorbed NH 3
NH 3 ads N112aet's + flads; N112ads -4 NHads + liads;
NHads )Nads + Hads; 3) reduction of U6+ to U4+:
02- + Hads 0 OH- + e; OH_ + Had, H20ads + e;
U6+ + 2e -4 U4+ ; 4) rearrangement of crystalline lattice of the
oxidized phase; .5) desorption of N from the surface:
2Na da ---) N2 a ds ---~ N2 ga B; 6) desorption of H20 formed during
the reduction. The.slowest stage in this proc ass is' stage 5.
There are 5~figures.
ASSOCIATION., Urallskiy politekhnicheskiy institut im. S.M.Kirova
(Ural Polytechnic Institut imeni'S.M.Kirov)
SUBMITTED: March 24, 1961 (initially)
2/2 September 11, 1961 (after revision)

BESSONOV, A.F.; VLASOV, V.G.
Kinetics of uranium oxidation by air, oxygen, and eVbon dioxide.
izvl,'vys. ucheb, zav,; tsvet. met. 5 no.4:137-142 .f62. (MIRA 16..5)
. , 11
1. Urallskiy politekhniche~,~iy institut.
(Urakum) (Oxidation)

VLASGV,,V,G.; BESSONOV., A.F.
Oxidation of uranium dioxidea Izve vy,3* ucheb, zavo; tsvet. met. 5 no.5-
:L13-122 162* MRA 15-10)
1. Urallskiy po-UtakhnicheBkiy institut.
(Uranium oxide) (Oxidation)

ZHUKOVSKIYI V.14.; VLASOV, V.G.; LEM)EV, A.G.
Electric*properties of the system uranium - oxygen in the range of
U3013 -'U02 compounds. Fiz. met. i metalloved. 14 no.2019-320 Ag 162.
(MIU 15:12)
1. Urelvakiy politekhnicheakiy inatitut imeni Kirova.
? "Iil*~O (Uranium compounds-Electric properties)

h1523
S/126/62/oi4/003/020/022
E039/z420
AUTHORS: Zhukovskiy, V.M., Y1A~Lov,__V_,G..,__Lebedev, A.G.
TITLE: Electrical properties of the uranium-oxygen system in
the range of composition U03 to U308
PERIODICAL., Fizika metallov i metallovedeniye, v.14, no-3, 1962,
475-478
TEXT: The range of uranium-oxygen compounds U02 to U30~
investigated by other workers'is extended to cover'U03 to U3081
Electrical conductivity is measured in the temperature range
25 to 2000C. ~Samples are prepared from U03.by dissociation in a
muffle furnace. Spectroscopic measurements 'show the presence of
impurit ies Na, K, Mn, Fe, Si and Al, the largest component being
Na at 3.8 x 10-2%. Debye-Scherrer X7r'ay:analysis indicates that
U03 is amorphous while U308 has a hexagonal lattice. Intermediate
compounds show a mixture of t1fe two phases, even U02-97 exhibits
Yeak lines of the U308 structure. Samples are formed into
tablets 14,.5 mm in diameter and-7 mm thick at a pressure of
3000 ks/cm2. Densities after compression are 3 /cm3 (for U03)
Resistances in th, a ge 10 to
and 3.65 g/cm3 (for U308); e ;Ong 6
Card lW_

s/i26./6 2/014/003/020/022
Electrical properties E039/E420
101 ohms are measured using a constant current megohmmeter with
an accuracy of 2 to 20%. Resistances in the range 10-1 to
10_ 6 ohm are measured using an a.c. bridge at 1000 c/s with an
accuracy of better than 5%. Samples are measured under vacuum
(1o-3 to 1o-4 mm Hg). Values of the specific electrical
conductivity x (ohm-lcm-1) for U03 and U02.67 at 25 and 2000C
are given in the table. The temperature dependence of the
electrical conductivity is given by
x = A exp( - AE/2kT)
where 6E is the activation energy. Isotherms of x are given
and also the dependence of 6E on composition. It is shown that
all samples have a negative thermal emf with respect to copper.
Both the electrical measurements and X-ray analysis show that
there is a transition from a state of low order for U03 to greater
order for U308' There are 2 figures and I table.
ASSOCIATIONt Vrallskiy politekhnicheskiy inatitut im. S.M.Kirova
(Ural Polytechnical.1natitute imeni S,M#Kirov)
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S/126A 2/014/003/021/022
E039/E420
AUTHORS: Bessonov, A*F.t Vlasovt
TITLE: The interaction of uranium with nitrogen
PER16DICAL: Fizika metallov i metallovedeniye, v.14, no.3, 1962,
478-479
tigated
TEXT: The kinetic processes of oxidation have been inves
previously by the authors. This.is a continuation.and the
formation of uranium nitride is investigated. The apparatus and
method is described-in the previous paper, the nitrogen gas being.
obtained from liquid nitrogen and 'Purified by passing over
titanium at 800*C and CaC12- The basic investigation is carried
out at 200 mm Hg in the temperature range.400 to 920*C.
Initially the reaction pr'oceeds parabolically with time for
about 0.5 min and then continues linearly for all temperatureg.
No reaction is observed below 400*C. At 590 and 7100C the rate
of reaction is proportional to the square root of the pressure.
Circulation of the nitrogen does not produce any effect on the
reactioft rate. The activation energy of the.process at 6300C is
16 kcal/mole and at higher temperatures 7 kcal/mole.
t4rd 1/2

S/126/62/014/003/021/022
The interaction of uranium E039/E42'0
X-ray analysis of the nitride formed at 9200C shows that it has a,
face-centred cubic lattice. The initial rate of reaction is
modified by t 'he presence 'of the U02 layer on the uranium surface
and the linear part is associated with the diffusion of the
nitrogen through the nitride layer. It is suggested that the
square root dependence of the rate of reactiofi~on-pressure is due
to the dissociation of the nitrogen molecules.into atoms during the
diffusion process through the nitride layers The decrease in
activation energy above 630OC"is explained on the basis of the
.U . to Up transition. There is I figure.
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S/080/6--/03-5/003/017/024
'Z~? C D2021T,302
AUTHORS: Bessonov, A. F., Vlqg2v,, V. G. and Strekalovskiy,V. N.
TITLE; Cyclic oxidation-reduction of uranium oxides
PERIODICAL: Zhurnal prikladnoy khimii, V. 35, no. 3, 1962, 657-660
TEXT: The subject of this study was the elucidation of the fol-
lowing questions: 1) Iffhich phases are formed during the oxidation
and reduction processes of active uranium dioxide and urano-urani-
um. oxide? 2) ("an the tetragonal phase be obtained at temperatures
below 400 - 500OC? 3) The oxidation kinetics of active uranium di-
oxide, unstable at room temperature. The work is a repetition of
investigations previously published by Western scientists. The
authors state that their results are in good agreement with those
given in Western literature. The following phases were found dur-
ing the cyclic oxidation and reduction of uranium oxides in the
temperature range from 20 to 5000C: U021 '02tXY '02.25t '02-36�X)
U02.6�X1 U02.67' The tetragonal phase does exist as a stable one
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Cyclic oxidation-reduction ...
S/080/62/035/003/017/024
D202/D302
at some definite temperature range between 500 0C and room tempera-
ture. There are 3.figures and 8 references: 1 Soviet-bloc and 7
non-Soviet-bloc. The 4 moot recent references to the English-lan-
guage publications read as follows: R. W. Willardson, I. Moody and
H. Goering, J. Inorg. Nuclear Chem., 6, 19-38, 1958; 0. Runnols,
Nucleonics, 17, 104-111, 1959; A. Arrot and I. Goldman, Phys. Rev.,
108, 948, 1957; F. Blackburn, 1. Weissbart and E. Gulbransen, J.
Phys. Chem., 62, 8, 12, 1958.
SUBMITTED: January 16, 1961
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yfj
5/080/6 2/03 5/003/018/024
P-A ~IDC D202/D302
AUTHORS: Vlasov, V.-G. and Kozlov, V. A.
TITLE; Low-temperature carbothermal reduction of U 308
PERIODICAL: Zhurnal prikladnoy khimii, v. 35, no. 3, 1962, 660-663
TBXT: A study of the kinetics of the reduction of U 308 with solid
.carbon. The authors carried out experiments in a temperature range
625 - 7250C on an installation and by a method described in a pre-
vious publication and studied the effect of Na2CO 3 added to the
oxide or to the reducing agent. It was found that the additi6n of
Na2 CO3to the carbon slows down the reduction; the addition of the
latter to the oxide-accelerates the process markedly. The rate of
reaction does not depend on the degree of oxygen elimination until
U 308 is fully converted to U409, but afterwards diminishes propor-
tionally to the degree of reduction. This dependence may be ex-
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S/030/62/035/003/018/024
Low-temperature carbothermal D202/D302
pressed by log aaq = kv where a is the degree of reduction
Corresponding -to UO 10
21 q - the actual degree of reduction (~'), ]c -
a temperature constant and 'r - time. Activation energy for the re-
duction is 56 -- 56 kcal/mol. There are 2 figures and 6 referenceo:
15 Soviet-bloc and 1 non-Soviet-bloc. "he reference to the English-
.language publication reads as follows: D. Vangnan and R. W. Mard-
Ison, Preprint Nucl. Eng. a. Sci. conf. s.a., 13, 15, 1958.
SUBMITTED: January 30, 1961
ICard 2/2

C;/080/62/035/010/001/012
D204/1)307
AUTHURS: '_,.hu1-,ovr.1:iy, V.Ii. and Vlasov, V.G.
I-- -
The affect OIL alkali metal carbonates on the rates
oil reduction OIL uranium trioxide
P7~'."10DICAL: Zhurnal 3rihiadnoy Ichimii, V.- 3~, no. 10, 1962,
2131-2134
T1.1XT: The c'Hects of analytical purity Li2C03, Na2CO3
and K2003 were observed, on the rates of reduction of amorphous
IJ03 (sPecific G'Lrface 15.0 m2/g, density 6'.3'9/cm3, containing A
,lbout 10-2 - -10-4 ~O, amounts of K
Na. Nn, Ve, Si, Cu, Al and Ni)
with a dry, I-116-free mixture Of ."2 and 142, derived from the cataly-
? V/
Ion of aM "'he carbonates were added, sirgyly,
tic decomposit jonia.
'0 were round together with
;Ln amounts of 0.2 - 10 mol." U03), 9
the oxide, and were prchcated for 2 hours at 380 C before the reduc-
tion. The pres3ure of (3H2 + 112) was 200 rian Hgf; and the temperature
.bias 4000C in all cases. It was found that carbonate additions slow-
C ard 1/2

S10301621035101010011012
Olic ef ~.ect Of alkali riictal P204/D307
ed doi-ra the reaction, I.,""'Ci being the most and Li CO- the least
2
et'-fective; the retarding clcct also increased i-'rith Haing propor-
tlons of the ad6itivcs. ThiS anomalous behavior is ascribed to the
formation of laycr~; o--2- uraziates 1"02U04 (ViLlere 1'~c . Li,
TI) on the UG
3, I-'nqc'-' (1) exert a protective screening effect on the
oxide, (2) promotr adsorption of water vapor, and (3) increase
the concentration of free electrons in the surface Of U03-
.L -tathough
effect (3) should accelorate the rate of reductio 'n, the opposite is
actually observed, sincc (1) oad (2) predominate in practice. There
is I table.
AS'SCC L'~T 10 11: U'allskiy politcliShnicheskiy institut im. 9.1-1. larova
(Ural-- 2olytechnical Institute im. 3.11. Urov)
SU1314ITTM: December 26, 1961
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S/195/63/004/001/005/009
^AUTHORS: 1rlasoV, V.G*,.Zhuk6vokiy, V.M.
TITLE: Reductign of uranium trioxide.by a nitrogen-hydrogen
Mixture
PERIODICAL: 11inetika i Itataliz, vAl,..no.1, 1963, 76-81
TEXT'; This.work in- a contirivAtiort of kirietii-.' studies. of the
reduction of U03 with various gasev An amorphous U03 with
the surface area of 15 m2/g and density"of 6.5 g/cM2 was reduced
with a mixttwe of Np, and H2 resulting''from tho reduction of NH3
over Ni at 9300C. Full transition from U03 to U02 was considered
as.100%, reduction. The reduction was studied between 300 and
500% at a pressure of P H2+N = 200 mm Hg and at 4250C with
3 2
preasures, ranging from 25 to 600 mai Hg., The rate of reduction
increased rapidly with temperature, no induction periods being
noticed..- Tile effect of pressure on the-reduction rate v is
expresood, by v a kPH PH bein#; the partial pre"a'aure of
hydrogen# "rhe vaiueg,bf ~ dro approximately 0.025. Tho
reduction 13 therefore independent of N2 which'acts only as a
-the following stages:
diluent. - The procesd takes place in
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S-_1- - -
F :PFNNCROZI~v
S/19.5/63/004/06i/005/009
Re4uction of -uranium E075/E436
a 4~;F~~:.,_ 1) ~U03 'UQZ.92 reduction rate constant6
_2) 4n. autidcatmlytic. prdeens VO..
U0 +iH __4 UO + Hio
202 aindrph. 2 gas 2#67 cryst. gas
- - --------- -
H UO H 0
UI)
2.55, ciryst
2--. gas 2.25 cryst. Wgas
4) -uo UO (Irt)
2*55~ 'U02+'x 2
The first ata
J j;e~ takes place in' the presence of tw6 solid phases and
the second. in' the presence of one solid phase of changing composition
with tho reduction. rate falling continuously. The~iapparent
t
ivatioh -enokgies for the various stages of reduction vary from
26 to 314 kcal/mole. In general, the reduction) irith N2 +-142
-5-
ccur
0 red m;re easily and to a fuller:axtent than that.with NH
3
It The'ra are 4:f Sures.
cheskiy institut iim~. S.M.Kirova'
VASS,6CiAT1ON:A1rai1skiy politekhni
Wral Polytechnic Institute imeni S,M.Kirov)
SUB14ITTED: M&Y 13, 1961 (initially)
Card 212,., r 26s 1961 (after revision.)
Septembe

S/126/63/015/002/008/033
E039/E420
AUTHORS: Zhukovskiy,-V.M., Tkachenko, Ye-.V., Vlasov, V._
TITLE: On the question of phase conversion-in reduced U499
PERIODICAL: Fizika metallov i metallovedeniye, V-15, no.2, 1963,
210-214
TEXT.* The-contradictory work of a number of authors on the state
and structure of the,phase compositions in the U--O system for the
range U02- U02.25 is examined. The dependence of the density and
parameters of the cubic lattice on the composition of the solid
phase formed in reduced U409 t-;hen decomposed by ammonia and solid
carbon is investigated. With increase in quantity of introduced
oxygen the density.of the oxide is increased and.the lattice
__:~___parameter decreased. Mien the oxygen content of the oxide is
h- ii- -s-dme-- of -th e--ura-nium
chang'ed it is nelcessary to-altor the c arge-o
ions in order'tc-rnaintain electrical,noutrality. n particular
U02,- uranium is found only in thc+form of U4+ ions (according to-.
-the authors* data-), the lattice parameter is 5.47 9 and the density
is 1.9-7 9/cm P- - In the case of Uz,09.whichhaa a lattice parameter
of 5.44 A and adensity of 11.4 g/cm3, it is necessary to alter the
Card 1/2

S/126/63/015/002/008/033
On the, question of phase ... 9039/E42o
4+ 5+ 6+
charge on some of the uranium ions from U to U or U The
substitution OfZome U4+ ions by the smaller U5+ and U6+ ions way
lead to a decrease in the lattice paravieter for U40~ in spite of
the introduction of more oxygen (the radii of the U +, U5+ and u6+
ions are 1.05, 0,.91 and 0.79 R respectively). Densities measured
experimentally compare well with those determined from X-ray
diffraction analysis, The results are in agreement with the
statement that the phase Of U02 +x has a cubic lattice of the
fluorite type with disordered introduction of surplus oxygen and
four-atoms of uranium in the elementary cell. There are 3 figures -
'ASSOCIATION: Ural'skiy politekhnicheskiy institut im. S.M.Kirova
(Ural Polytechnical Institute imeni S.M.Kirov)
SUBMITTED: JUILY 7, 1962-
Card 2/2

AWHORS: Ye.V. a n dVlasov, V.G.
Tltachenli:o
,
TITLr,; inlias a-transf ors-iiat ions durinG carbon reduction of
Uranium oxides
Pz.';UOD1CAL: Vizil a matallov i inotallovedaniya, V. 15, no. 2,
1965, 239 24-
..TEXT: 0
Acetylene soot was us ad to reduce 'U0,. at 400 500 CS
U,O,, at b50
3 6 850 0C and U 0 at 700 - 950 0C. The lzine't;ics of the
9
! studied by continuous weight jaaasure:aents, X-ray
reduction vrerc-
diffraction ,
being used to follow tltio Th e
-results are reproduc ad i~ri Figs. 1, 2, 3. In eacit the rate
of reduction (dp/d-r- for UO,. in Fi-. 1, df/d-r- for U.-C., in Fi .2

and dq/d-If for, ULO in Fig. 3) is plotted against' tac dc_crae, 01

(p, f and q,
r S c2t volY) o" reduction of "he respec'ive sub-
a
-st-ances, .1-10 co.,11--)osi he solid at val.~iou_, of
tion of tl
w
the process
boin- sho%ai at the botto;;t of each fig'are. F ic'. 1
j'
l

at 1 2
u c 0 2. 5 ,
ion of UC_ arrice- ut
raiat6s. to reduci

Card1/3

Phase-transfornations durim . ....
3 4501 4 "1'75 and 5 500 0C; F ;Lo,. 2 shows the reduction of
U o at 1 - 650, 2 700, 3 -725, 11 730, 5 - 775, 6 800 and
3.8
850 OC and Fi' 0 at 1 700,
~,7 g 3 relates to reduction of U
4k 9
2 -.-730, 3.- 4001 850 and5 - 956-'C.- The- following phase-
-trans f ormatlon.s -,rerepostulatod for each of the processes studied:
UO_ UO U 0
U303 ~3 8-Z
b) U 0
U 08-Z uj~o UO,__
31 9-> U02-iwx
, _> UO UO
U1
9-1
max
Th er e are3 fi zur os
ASS ON: Urallz~ciy ins-l.-itut im. S .~;,,.Nlirova
polytechnicai Ins 4C, itut aim. S.N. Kirov)
JuIY L7, 19v-
UB ti 1 TT ED
2/3

5 /0 is m Z5, 49 z 4f 6
Card 3/3 Cocmad ~776,,oa7d 9Mja Ind!'Odod pajo COCMOf M,4e

s/i26/63/ol5/003/024/025
E039/E435
AUTHORS: Sessonov, A.F.,-- Vlasov, VG.
TIME: :On the question of the high temperature oxidation of
metallic
... PERIODICAL: Fizika metallov i metallovedeniye, v.15, no-3, 1963,
477-478
TErr: The.oxidatidn of uranium by C02 at temperatures above 900%
7-- ~--is-invcotigated.-- The uranlum--(technical purity 99.8%) in the form
of:platos is first dogreased in benzene, etched with cold
concentrated nitric acid'and then thoroughly washed in ethyl
alcohol Isotherms are measured at temperatures of 900, 950 and
10000C-for a CO of 420 mm 11g. It is shown that the
2 pressure.
dependence of' the~rate of-oxidation of uranium on the pressure of
:-C02 is given:by
v a
02
is the
where n.= T a is a temperature constant; PC02
pressureof C02 It is also shoim that the rate of circulation of
C02. has practically no effect on'the reaction rate. The
pard. 1/3

S/126/63/015/003/024/025*
A"-'On, the question of the high ... P-039/E435
IsInteg
di ration of the sample is caused by the phase changes
772
Y Up which produces an, inorease -in volume and. luo 11M
produces a decrease in volume. X-ray diffraction analysis
shows that there 'is a layer of UO on the surface of the U02. This
is also cletected chemically Vogether with the mono-nitride and mono-
carbide in the isurface scale of uranium oxidized at C02 at 1000"C.
~'.-~:'The catalytic effect Of U02 is demonstrated by comparing the rates
0
of xidation of pure iron powder and a mixture of iron powder and-
U02 (200% by wt f,e) . The U02 produces a significant inzrease in
*Ifhen the temperature of
the rate of oxidation-of the iron.
uranium is increased f '903 to.1000,*C the rate of oxidation
rom
decreases owing to an increase in density of the U02. At
~,,tempora
tures 78O*C the oxidation is accomplished by oxygen
the
diftusing through the oxide layer but.at temperatures: >-9000C
kate-_,of diffusion- Of-,the---m-*-ta1`-t1irough. the scale becbmes
_significant TI-tere are -2"figures.
ASSOCIATION Ural I skiy, politekhnicheskiy inatitut im. - S.M.Kirova
_(Ural P-o-lytechnipal Institute imeni S.M.Kirov)
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~,;;~,-~ , . .- , - .

&I^ Or. /4 'Z An-44 Inc
~DZ04/D307
AUTHORS: VIDSOV, V-0. 6nd Zhukcvnkiy, V.M.
'TITLEw Tho reduction of U 08 with decomposed
3
tmmonia
PERTODICAL: Zhurnal prikl,4incy khinii, v. 36, no. 1,
1063, h2 - h?
TEXT: The reduction kinetic Y;erc- studied on (1)
U308 made by firing UOI,.nH 20 iii cir at.09000C for 5-hre, and (II)
U OA made by oxidizing UO in air at 5~300C,over 5 hrs. The
3 2
reducing mixture -vas obtained by pasBing till3 over a Ni.catalyst
at 9300C. Measurements of the tomperature-dependurice of the rate
of reduction (ata pressure of 200 mrr!, between 1150 and 6500C)
showed that the curvac -Nere practically the 6ame for specimens
I and II; the anparent activation enerpy'vias E = 32.2 4 1.6 k(~-*I/mole,
The kinetic curves and x ray dilfraction studle.? showod that the
reaction may be reprenented by the sequence.' U., 0 0 --)6 U0 --*
3 8-X max
Card 112
V

S/OW/63/05b/00 1 /oo 4/026
The reduction of U 0 D204/D307
3
U0 13 0 U07 Thp reautJon wan retarded by water
4 9 R+X1nRX 1-X
vapor, eopccially aL the Lower temperatures. Tho pren8ure-dependence
of the rate v (nt 6001G, between 50 ancl 600 mm t4r, or (3112 + Np)
vine
where n b.PO + 0.02 iu litt1j: de-aendent of the specimen.
Various possible rate-determining stages are dicoussed, proposing
that the rate-limiting stage ir, in this caeo the interaction of
adsorbed (atofaic snd molecular) hydrogen with oxyFen of tho oxide.
There are It figures.
ASSOCIATION: Ural'oki- politnchricheskUy institut imeni S.M.
Kirova (Uralo Polytechnic institute imeni S.M.
Kirov)
SnMITTED Mla r c h15, 1962
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iM

a:) D a rent

'WrlinVe-o (t )MIP W 1JP C ESILD ~WWJG
-IXCMC NR, AT50'
26248 SOURCE CODE: UR/2631/65/000bj06/013170136
V
AUTHOIR.. Strekalovskty, N.; Beketov, A. R.; Vlasov, __t G.,
5 --,5 4-4~'
ORG: Institute of Electrochemisty. Ural Branch, cademy of Sciences SSR (Akademiye,
nauk SS.9, Urialskiy f Tl-aFj -Institut elektrokhimii) 5-.j-
A
TITLE: Study of the density and structure of uran1unLgXjdMIn the range of the compositions
UO3-U3C8
SOURCE: An SSSR.. Urallskly filial. Thatitut elektrokhtmit. Trudy, no. 6, 1965. Elek-
trokhtmiya rasplavlennykh solevykh I tverdykh elektrolltov (Electrochemistry of fused
salts and solid electrolytes), 131-136
TOPIC TAGS: cyratal defect, solid solution, uranium compound, x-ray diffraction analysis
ABSTRACT.- The density and structure of samples produced by the dissociation of a and 11
forms of, UO, in a vacuum are studied. The density to determined by vacuum pycnometry,
and the x-ray phase analysis to carried out with a URS-70 unit Comparison of data of Wth
sets of measurements slimv that the density depends on the structure of the products formed
In.the systorn. The unit cell parameters of the solid solutions with a hexagonal
U"~317UC`2. 67
structure In the range of 0;-UO3-UOZ, 9and with an orthorhombic stnicture in the range of
are calctilated. It to shown that the latter Is a defect solid solution, and
U02. Z-U02.67

BEKETOV, ti.R.; STREULOV"'FlY, MT.; V-1 ASOV, V.G.
ying the structure of so!-i.d eolutions of uranEn Oxides
in the region Or--UO3 - U3Q81 Zhu:r. strukt. khim. 6 no.1-75-
78 Ja-F 165, (MIRA 18:3.2)
1. Urellskiy politekh-nicheakiy institut. Submitted February
24, 1964.

A.R.,
j ra
~)4-2
:IP
1. 1-.r1 iLtad Febrt-jn*,
9 64.

TKAC;4l,,NF'li; BTYE'Tolvp A.R.; VIIASOVI-YA.,
11fid-ir-tion of the hexagona-I modifichtion of uranium trinxide
by suild carbon, T?,V* Vv
- S. uchebt zave; tsvet. met. 8 no,3t
100-107 165. (KRA 18-9)
1. Urallski.y politel-Innicneskiy Ingtitut, fizlkc~-tekhnicheskiy
fa h,11 I tet.

L 12150-66 IJP(t)
ACC NRt AP6000639 UR/0080/65/038/009/2103/2105
AUTHOR: Beketov, A.R.; Vlasov, V.G
ORG: Nons
TITLE: thermal stability of polymorphic uranlu'M"'I trioxide
SOUROE: Zhurnal prikladnoy khlmil, V. 38, no. , 1905, 2103-2105
TO.PIO T,.&GS: uranium compound, thermal stability, phase diagram
ABSTRACT: The article presents the results of a thermographic, kinetic,
and x.;;ray study of the processes of decomposition of amorphous UO
lphw-U03, beta-U0 31 and gamma-U03' Amorphous U03 was prepared Q'eal-
Ining uranium per xide for 3 hou a at 3500 in a stream of oxygen, with
upplemontary heating for I hour at 400c. Alpha-U03 was prepared by cal
Ining uranill-1 peroxide in air for 3 hours at 5500., Beta-UO was pre-
ared by calcining ammonium diuranate In air at 400 for 3 h9urSe
amma-UO was prepared by calcining previously calcined uranyl nitrate
~exahydrhe at 5500 for 4 hours in air. It was established by chemical
knalysi*a that the oxides obtained had the following composition: amor-
hous
a-UO3-UO2.OtO.ot# ft"U03-UO'.o3j'.41P 71~0'--Uo..4*10.411
hermal, kinetic, and x-ray analysis (results given in tigures) made
fit
ossible! to understand the phase relationships In the dissociation o
winn. r_AA o7m x ~ chi AK

4~
L 121.59-66
ACC NRj
AP6000689
amorphous U03. The temperatures of the start of dissociation for alpha-
03, beta-UO . and gamma-UO8: determined by a kinetic method, are re-
pectivoly ejual to 460, 43 and 5100. Curves for the heating of poly-
orphous UO in a vacuum show that the dissociation process of alpha-
0 proceeda at 57=-6130, beta-UO at 525-5700, and gamma-UO 3 at 610-
680. The final product of the dissociation of all forms of UO Is the
OT Phase. The divergences in the temperatures for the start 9f dis-
3
oc ation, determIned from thermographic and kinetic Investigations, are
onnected with the! special characteristics of the methods. The data
~
c
Indicates that the thermal stability of polymorphic UO 3 incre.~-aeig In
he following order: amorphous U03, beta-U03, alpha-U03, and gamma-UO
3*
Orig. art. has: 2 figures.
SUB OODE: -07/ SUIIH DATE: ORIG REP: 005/ OTH REV: oo6
AD
Crd 2/2

j
L ooo87-66 -IJP(c) _WjP/'trVV'J^
MIXESSION MR: AP5022339 UR/0149/65/000/003/01-0-0-/-O-1-0--7
661.879
(:
AUTHOR: Tkachenko, Ye. V.; Beketov, A. R.; Vlasov, V. G.
TITLE: Reduction of the hexagonal modification of uranium trioxide by solid car-
bd,n
-107
SOURCE: IVUZ. Tsvetnaya metallurgiyaj no. 3, 1965, 100
TOPIC TAGS: uranium compound, carbon chemical reduction
ABSTRACT: The article gives the results of an investigation, by kinetic and
X,*.ray means, of the reduction of the hexagonal modification of uranium trioxide
(alpha-U03) bit solid carbon. The reducing agent was acetylene carbon black (ash
content 0. 077o) previously held in a vacuum dryer for ten hours at 250C. rhe
alpha- uraniurr. trioxide was prepared I-y calcination of urwiium peroxide at 520C
for three hours. The oxide obtained had abro'Ana color, a density of 6.74 grains/
2
cm , and a. sp,,,clfi,~ surface or .5.3 meter2l/gram. X-ray analysis indicated a
hexagonal structure. The tests were carried out in a high vacuum unit (pressure
not more than 10-2 mm 1-1g) with constant control of the weight changes of the
solid reagents. The reduction was sLudled In the temperaLure region of 500-615C
Card 1/ 2

L 00087-66
ACCESSION NR: AP5022339
because at lower temperatures the reaction is too slow and at higher temperature!~
it is too fast for experimental determinations. It was established that the reduc-
i tion of alpha-u-ranium trioxide by acetyleno carbon black at a noticeable rate
starts at 440C. It was also established that with an increase in temperature in
the pressure of carbon dioxide in the reaction zone, and with an increased degrec~
of contact between the reagents, the rate of the reduction process is conslderably~
improved. X-ray analysis shows that alpha-TJ03 and TJ,~'08 farm a continuous
series of solid solutions. During this process, within the Dmits of a single
phase there is observed a transition from hexagonal syrnmetry (alpha-U03) Lo
orthorhombic W308). Orig. art. has: 3 figures
ASSOCIATION: Urallskiy politQk[inicheskiy institut. Yizi-ko-teklinicheskiy faluill
tet (Ural Ichnic Institute, -Faculty of Phys ico-te clinical Studies)
ENCL- 00
SUBMITTED:, 13Apr64 SUB CODE- -icj,, Go
NR REF SOV: 016 OTHER: 009
Card 2/24-
~77

BEKE"POV, A.11.-.VLASOV, V.G.,- STREKALOVSKIY, V.N.
-
Phase transitions dur!ng the filnsor~ptlrjn of and )(-,fcrm of
uranium trloxidp. 7hur'onr-orgsk~lfn. 10 rr,*4-.71.-?40 Ap 165.
(MIRA 18t6)

50177711
6 -0
A
Cab. 094. 2-546.79 1
7, 4
T 1-1 b o I (f r e rJI i c I! 'I t. 2 j' 111 XL' r) I Q p n c f' :1
T SOTIRC_E; Zhurnal prikladnoy Uimii, v. 38, no. 7, 1965, IZ47 -1451
TOPIC TAGS: uranium oxide, carbothermic rediiction. alkall. m,_-tal carbonate
ABSTIFAM The e'fect of lithlum., fioditim, anil on va-2,im
a~a)-~,o7, i ~jn - 1 -411 1- at 4i 0~7 an-~ uranou,2-ilra7-1-
cart,,, Oicrn`j-
~j 0
- ~- ~_ I- . - -;,' - Y = i ~ - Y I ;~ a, ~ e r ox
the addition of alkali matal carbonates was ~:ourid to ha,-~ an arcp_lera,-in.-~, C-ffpC?-
T;
EEL-'-, _d!_;,~: aBSL~~, ~a.-D6aaL, a,:~_elazati_~s
it, and aoditm ci,rbonac-e has practically nu (!Iffect or, its rate. The mechanism
.-tall carb-~.,nates- a~!- tw~-, of Ih-
by whi-h alkaii

ASSOCIATTON, None
SUMUTUD: -1 McO OCL: 00 SUB CODE: IC
No:,w sov; 019 MHER: 003
,_Card ~/2

VLASOV, V.G.1 TKACHENKO, Ye.V.; LEBEDEV, A.G.
Mechanism of the reduction of uranium oxides by so2id carbon.
Zhur.prikl.khim. 37 no.7:1411.-IJ.20 Jl 164. (MIRA 18:1.)

VLASOV, V.G. - SIMLAGEOV, V.N. M
Kinetics of the reaction of tho m.lzod lower and hIghor ox'(I(i
1,
of uranium with carbon monoxide. Zhur. prikl. khim. 37 no.9:
1865-18?l S 164. (14M 17: 10)

A177TOR- Ragarnaya, L. L., Bezuglyy, V. D. ; Vlasav, V. G.
TrME- .4 stud,r of the stability of 21ast -1; on a 201 t~jane base
CIrED SOURCE: Sb. StsintillvaLo-,y i scstritillyars. er-aly. Vy:). J. Khar'kov,
jaar'kovsk. un-t 1063, 85-90
TOPIC TAGS: polystyrene scintillator, scLatillator peoperty, polymerizaLLon
environment, residual monomer, scintillation efficiency, scintillator stability,
polysty-rene aging
TRANSLATION: The authors analyzed the effects of various factors (i.e. tempera-
tvire, humidity, natural illumination) on the aging of plastic scintillators and
or, their stability in relation to time. T'ha scintillators were made by poly-
atyrene or withouL one or two addicions of FPF (2%) and POPOP
(0,06%) for 8, 16, 24, 3-2, Su', .^- -- '-rs. at. 1245, 1.~C, L70 or 200C. Th-C
p,)lymerizatior occurred in a N. atmosphere, inside oealed glass ampoules. Vine
-.7e
qol-.tiori W;IS za e~ ~11 Dck. -.Achinee or a lath.
Card
112

L -43129-65
ACCESSION IM AR5008437
then carefully polished with a felt disk, using a water suspension of optical
polishing crocus. Samples were stared under various conditions. It was es-
tablished that the content of residual moaamer in a scinttllator must be kept
at minimal levels. Material poly-rized for 32 hours at 170-180C into blocls
w1th a diameter of 20 mm provided the best scintillators. Scintillation effi-
C f -Inc was 65% ovez periods of 2.5 years at 20-40C wher,! Ught was;-absent or the
be q._;'-'1eCt2d
Prvj:-c,=P_nr ii-il-iv h=iL~' -"-E
L. Kotlyarevslkz-~a.
FNCL: -00
3 CODE: OP, PT
LC,,d,'!/2

VLASOV, V.G.; 'IWACHENIKO, Ye,V.
Reduction of uraniumj~-dioxid, ith solirl carbon. Zhur.
prikl. khim. 37 no. 5%946-951 My 164. (MIRA 17:7)

T.,
L 1,3643 -65 Pu_4
ACCESSION NR AP4045189 ES/-,-.',~/JD/JG/S/0080164f'037/009!1,R6511971
AUTHOR: Vlasov, V. G. ; Shalaginov, V, N.
TITLE: KinetiC'3 of the reaction r)f t114, m~~Y-j oxidir r)f 11
a !, in n i,,,) n,
X I d e
SOURCE: Zhurnal priklacLnoy khirnii, v 37, no. 1), 1964, 1P,61-1871
TOPIC TAGS: U308, U308 reduction, carbon monoxide, reaction kinetics, car-
bon monoxide reJucing agent. energv of artivption, uranium, peroxide calcination,
on redu~-ing gris pr-F-cz1;r(-- phase
UO,) formation, "O.~ reduction. 1.0,~ f I -
transition, carbon monoxide adsorption
ABSTRACT: Th,-- kinetics were studied of the rarborl mcriox~,A_- i-educlioii o' tvo
Varieties of mixEd oxides of uranium- J.TqO8[ and T1130glT 7if pressures n," 20-
Hg. U.,3081 was dri (_)X-1,f,:! - U, 6 w)urs
at 400C to obtain the trioxide which was theii reduced with hydroger at 450-500C
to the dioxide. The latter was oxidized -.in air at 500C fo- 6 hours to U,7,10gl. The
other sample wa.,; prePared by r-;~Icining u-.-ar.,um peroxide in, ;~lr at 300C for 5
Card 1/ 3

hours, Carbon monoxide reduction reactions were then run at 250-400C with
U Practically no reduction occurred at 250C
30,41: and at 280- 150C' fu,- U30811
'l' specific surfl(--e
Under identic,-l vcnditions the rate of lhe r-r~duotion of IT'Ov
?-4 tiine4 r:.!(, of the reri'lotlori of
2 5 n2lv
A) %I
u d Li cio, e f, i i!, -
ph P s e) tetr~qonai phase 't
K
r!~ or a ci. i vi on ~t-C 1 1 r- J-T,,~Oqj, ---28 6 0. 91 kcal m(~Ii, tc)r
U30,jll, L=18.9 0. ~) ie ci i i rn 0
reducing gas pressure in both cases conforrned to the eqLtalion. v K'~co-
shown the determining stage ot' tliic-, reducing process was the surface reaction
Cart, 213.

TKACHENKO, Ye.V,; NEYMIN., A.D.; VIASOV, V.G.; STREKALOVSKIYp V.N.
Studing the electric conductivity of the system U03 - 0-
Izv. vys. ucheb. zav.-; tavet. met. 6 no-4:118-122 163.
(MM 160)
1. Ural'skiy politekhnicheskiy institut,
(Uranium oxides-Electric properties)

TKACHENKOJ, Ye.V.; tIEUDIIN, A.D.; VLASOV., V.G.; STREXALOVSKIY, V.N.
Temperature dependence of the electric conductiivitv of highqr
uranium cncides. Fiz. met.,i metalloved. 16 no.2-,193-197 Ag 163.
(KIRA 16:8)
1. Ural'skiy politekhnicheskiy institut im. S.M. Kirova i
Institut elektrokbimii Ural'skogo filiala AN SSSR.
(uranium oxides-Electric properties)
(Metals, Effect of temperature on)

VLASOV, V.G.; ZIIUKOVSK'L'Y, V.M.; LEBEDEV, A.G.; SIMLAGINOV, V.N.
Adsorption of certain gases on uranaus-uranic oxides. lzr.
vys. ucheb. zav.; tsvet. met. 6 no.4:113-117 10. (MIR& 16:8)
Urallskiy politakhnicheakiy institut.
(Uranium oxides) (Adsorption)

DEF, -T.OV 1, -'1 -
Of

61xide of tip Compos I L) on U 02.88' an or'~n o r, i onno c ar u c -.u r e c i a r P- ce r i si c
Card 1/2'
3

L -!~-oq8o-65
,The hiter irms &n orldo? of the com-l-gition TJO in thew emffe of Cl(-,JO
2.9s
a n6 th,~ case of wh i r h -,.o 1- -~d Lh
2.
apecificll~y Of thf, com-m3l'-oo, 2 p a r at I c n ~3 w a r a I~h o
A,%CC
'&TBI=TIMz 19Feb6h
"0 F,
U2 SO V
Gaid 2/2
ZNCL CO SUB CODEs IC, SS

5 ' 5-
AUTHOR: Beketov, A. R. Vlasov, V. G.
TITLE: Dissocial.ion of _f -U03
;5 Itir, F=_':-_Zhurn9
adnoy_-IdAmIIv_=17
TOPIC TAGS: dis:sociation kinetics, gaamma uranium trioxide, energy of actil.ra-
tion
ABSTRACT: The kinetics of the dissociation of orthorhorribic 'C - U03,
obtained
by calzining uran)l nitrate hex,-hydra*e, vzerf~ ii~,(,_stigafed in the 600-675C tem-
perature inf.erval. At 625C and above the process appearEtd autocatalytic: disso-
ciation started slowly, then increased rapidl,, to a maximum when the composi-
tion of the solid phase was UO 88 U02. 90- At UO?. 77 - UO 2. 79 the dissociation
at- -
Xjr- rava confirmed the flormation of the--
_t6d-
Iff7
e, cron
0
.3., Ut P e
~O
hfi
M'ec n s ina rans erring
V30i t
t S~rate-,_-Ther_a
!
a id"roded porent---~.
-1 f 2

ACCE,'R'S1OTN--NR:--AP4041 I
energios or activa4Aon for the dissociation process were determined at different
degrees of dissociation: at 101/6 dissociation-42. 5 kcal/mcl and at 2516 , 60. 5
kcal/rr-ole. Orig. art. has: 2 tables and 1 figure
ASSOCIATION: None
SUBMITTED: 24May63 ENCL: 00
-a:C0DE:-.-UC- -----'-NO--REF-.SO-V,:010---,:~-.-'- OTHER:013
U
wool,

37 no.10:1,22'INI-2175

9(0) SOV/11Z-59-2-3962
Translation from-, Referativnyy zhurnal. Elektrotekhnika, 1959, Nr 2, p 253 (USSR)
AUTHOR: Vlasov. V, G,
TITLE. Phase Relations in a Frequency Conversion With Integral-Number Ratio
Between the Frequencies (Fazovyye sootnosheniya pri preobrazovanii chastoty
kolebaniya s tselochislennym sootnosheniyern chastot)
PERIODIGAL-. Uch, zap, Leningr, vyssh. inzh. morsk. uch-shche, 1956,
Nr 2, pp 47-50
ABSTRACT- In frequency conversion of self -oscillations, the phase of the combiria-
tion frequency depends only on the relations between oscillat;ons at the
converter input. In the case of oscillation conversiort with an int tegral-nurnber
ratio between the frequencies, a difference-frequency oscille-tion appears if the
converter characteribtic is approximated by a polynornial off -higher than the
second degree; the phase of the difference frequency depends not only on the
phase difference of oscillations applied to the input but also on the shape of the
Card I I?

SOV/11Z-59-2-3962
Phase Relations in a Frequency Conversion With Integral-Number Ratio . . ~ .
converter characteristic. Formulae are developed for determining the
additional phase angle which is due to nonlinearity of the converter
characteristic, and a curve of this phase angle plotted against the phase
difference of the oscillations applied to the converter is plotted.
V.I.R.
Card 212

SOY/112-58-1-1392
Translation from: Referativnyy zhurnal, Elektrotekhnika, 1958, Nr 1, p 207 (USSR)
AUTHORt Vlasov, V. G.
TITLEs Phase Relationships n Frequency Conversion
(Fazovyye sootnosheniya pri pxeobrazovanii chastoty)
PERNODICAL: Tr. Novosibir. in-ta inzh. vod. transp., 1956, Nr 2, pp 212-217
ABSTRACT: ks; &-result of application of an oscillation u r u1 + u2 = Elsin (m(4t
+ E26in (nOt + Y2) (where rn and n are integers and m.;-n) to a converter
whose AAracteristic can be presented as an exponentional polynomial
i -~: ak Uk, combination oscillations of the type + pmLA) 4qnIA are setup,
wher e p and A ar e arbitrary integer a f rom one to the nu;n-b er denoting the
highest degnte of the polynomial. The useful oscillation having a difference-
frequency (m - rx)W is formed by the term a2u2 (at q = p = 1) as well as by
other terms of the polynomial with degrees higher thin the second. However,
the phase 40 of the resulting oscillation depends not only on the initial phase dif-
ferenceAtf of oscillations u1 and uZ but also on additional phase ~, which is
Card 1/2

SOV/112-58-1-1392
Phase Relationships in Frequency Conversion
due to nonlinearity of the converter characteristic. Specifically, for a third-
degree polynomial with ul a E Icos (31At - U a Encos Zot (mIn - 3/?),
3 a
E, "I sinZY - -.2 EZ /al sin 4!p.
a 32
2
Evaluation of the additional phaj is rather important for phase-difference
multiplication circuits, for regenerative frequency dividers, etc. A circuit
diagram of the experimental oscillographic hookup in presented in the article
as wen as an experimental curve of the additional phase vs. the difference
of phase oscillations at the converter input (frequency relationship m/n = 312
and 4/3). It is noted that, with proper selection of conversion conditions, the
additional phase 1~ can be reduced down to values acceptable for practical
purposes.
M. V. N.
AYAILABLE: Library of Congress
1. Oscillation 2. Frequency converters 3. Mathematics
Card 2J2

VLABOV, V.G., kimd.tekhn.nauk
Use of ship radars in navigation. Rrolzv.-tekh. abor. n0.2-,50-60
1 159. (MIRA 13:10)
1. Na-ac)mo-issledovatellskiy institut vodnogo transporta.
(Radar in navigation)

PHASE I BOOK EXPLOITATION SOV/5218
Vlasov, Viktor Grigorlyevieh, and Vladimir Grigorlyevich Svechnikov
Osnovy radiotekhniki I elektroradionavigatsionnyye pribory (Funda-
mentals of Radio Engineering and Electrical Radio Navigation In-
struments) Moscow, Izd-vo "Rec-hnoy transport", 1960. 279 P.
Errata slip Inserted. 5,800 copies printed.
Ed.: V. P. Konstantinov; Reviewers: Yu, I. Nikitenko and
A. V. Zherlakov; Ed. of Publishing House; S. A. Vltashkina; Tech.
Eds.: V. A. Bodrovajand M. I. Pokhlebkina.
PURPOSE: This book is recommended by the uchebno-metodicheskiy
sovet pri Upravlenii kadrov I uchebnykh zavedeniy MRF (Oouncil
on Educational Methods of the Personnel and School Adminlatra-
tion of the Ministry of the River Fleet) as a textbook for stu-
dents In Marine Navigation courses of Institutes of Water Trans-
portation Engineers.
COVERAGE: The book begins with a section on general problems of
radio engineering. The design and principles of operation
Cara:__~

Fundamentals of Radio Engineering (Cont.) SOV/52i8
of instruments used on the vessels of the river fleet, such as
radio transmitters, radio receivers, and electrical radio navi-
gation devices are discussed. Some problems in the Installation
and operation of these instruments are reviewed. The first
three parts of the textbook were written by V. G. Vlasov, Can-
didate of Technical Sciences, Docent, and the fourth part by
V. 0. Svechnikov, Candidate of Technical Sciences. The authors
thank Yu. I. Nikitenko and A. V. Zherlakov,'Candidates of Tech-
nical Sciences, Docents, and B. V. Konstantinov, Engineer for
their advice. There are 17 references, all Soviet (including
1 translation).
TABLE OF CONTENTS:
Foreword
PART I. RADIO ENGINEERING
3
Ch. I. General Concepts on Radio Communications
1. Radiation field 5
Capd-044,0

I -- -- -
GRISHCHENKO,--I.L., inzh.; VJASOV,. V.G., inzh,
Device for measuring the slippage of asynchronous motors in a vide
raage. Vest. elektroprom. 33 no.8.-6849 Ag 162. (MIRA 15:7)
(Electric motorsD Induction-Measurements)

ACCESSION NR: AP4038560 S/0080/64/03'1/005/0946/0951
AUTHORS: Tkachenko, Ye.V.
TITLE: Aeduction of - uranium dioxide with solid carbon
1.:'SOURCE: Zhurnal prikladnoy khimii, v. 37, no. 5, 1964, 946-951
TOPIC TAGS: uranium betadioxide reduction, uranium dioxide, carboth-i
ermal reduction mechanics, uranium reduction, solid carbon, beta
uranium dioxide
ABSTRACT: In view of the fact that the mechanics of metal oxide
reduction with carbon at elevated temperatures are studied the
least in theoretical metallurgy, the authors undertook a compre-
hensive study of how o-uranium dioxide, U 0 -c~n be-reduced by solid
carbon (acetylene soot) at 700-950C to uraki2m,dioxide, U02, or more!
precisely,
U 0 -U0 U0
4 9 2+2xmax 2+x
LThe composition of these uranium oxides is determined radiologically';_
wit
with x varying between 0.18 and 0.02. This reduction was effected
ard
..1/2

~ACCESSION NR: AP4038560
in a vacuum and the interaction of carbon, carbon monoxide and
0.dioxide undergoes a detailed scrutiny resulting in the conclusion
that the complex process of carbo/thermal reduction of U 0 is a
combination of indirect reduction and stepwise gasificatioR of I
carbon. Both processes stand in close physico-chemical and thermal
relationship. Orig. art. has: 3 figures, 5 formulas, 2 tables.
ASSOCIATION: None
SUBMITTED: 07Jun62 ENCL'*. 00
SUB CODE: lc NR REF SOV: 009 OTHER: oo6
2/2
777."!

L 23857-66 E;NT(w)/EPF(n)_ P (t) IJP(c) ES Z4qGS'
.ACC NR, AFT6_00~~4_1___ (A) SOURCE CODE: UR/00 /600/000/0191T/o
AUTHOR., Tkachenko. Ye. V.; Vlasov,-V. G.
ORG:- UraI Polytechnic: Institute imeni S. M. Kirov (Urallskiy politekhnicheskiy ins-
tiiut)
TITLE: Reduction of gamma-IManIUM trioxide by solid carbon
.SOURCE: 'AN SSSR. Otdoleniye divshchey i tekhnicheskoy khimii. Issledovaniya v oblasti
khimii I tekhnologij'6 viinerallnykh soley i okialov (Studies In the field of chemistry
and technology of mineral salts and oxides). Moscow, Izd-vo Nauka, 1965, 197-202
TOPIC TAGS: uranium -qomp%;~A. --carbon, chemic.-I ivduction
ABSTRACT: kinetic and x-ray diffraction study of the processes involved in the re-
duction of orthorhombic uranium trioxide (Y-U03) by solid carbon at 4750-5800C is de-
scribed. It is shown that in analyzing the reduction mechanism, it is necessary to con
sider not only the paxticipation of carbon but also the dissociation of the oxide and
the direct interaction of the reagents in the solid phase. X-ray diffraction analysis
established that y-UO3 does not have a region of homogeneity, and that the phase trans
formations taking place during the reduction with carbon are:
_W1_ 4 - 0 U
U
Y- 3 3 8+;~= 304'- UPO
max
Cat-d 1/2

L 23857-66

L 2386 -66
ACC NR, AT6009942 SOLIRCE,CODE:
AUTHOR: Sychev, Yu. N.; Vlasov, L. G.; Lapitskiy, A. V.
ORG: none
UR/0000/65/000/000/0238/0241
TITIX: Use of gas cbromatography in the preparative purification of niobium and-Ign-
talwn chlorides involving removal of iron
SOURCT: AN SSSR. Otdeleniye obshchey i tekhnicheskoy khimii. Issledovaniya v oblasti
khimii i tekhnologil. minerallnykh soley i okislov (Studies in the field of chemistry
and technology of mineral salts and oxides;). Moscow, Izd-vo Hauka, 1965, 238-241
TOPIC TAGS: tantalum compound, iron compoud, niobium compound, chloride, adsorption,
activated carbon, matal purification, gas chromatography
ABSTRACT: Gas chromatographic (gas adsorption) techniques were applied to the prepara-
tive separation of chlorides of certain rare elements from ferric chloride. The two
pairs NbC15-FeC13 and TaCl.,;-FeCl3 were investigated and BAU activated carbon was used
as the adsorbent. The preparation of this adsorbent and the apparatus employed in the
removal of iron*fxx)m NbC15 and TaC15 are described. The samples obtained after the
purification were analyzed colorimetrically. (,iron was found to be absent) and radio-
metrically (iron present in quantities of less than 1-10-161,, which is the sensitivity
limit, determined by the specific activity of the iron-59 isotope introduced). Ana-
Card 1/2

23s6q~,66~---
ACC NR, AT6009942 0i
lysis of the chromatographic column after the purification showed that iron has a con
vex adsorption isotherm on carbon relative to the axis of abscissas, and that high -
concentrations of ferric chloride move at a higher rate than low ones. This behavior
of the chloride on carbon, similar to its behavior on silica gel, suggests that the
removal of iron from tantalum and niobium can be carried out with a high separation
factor. Orig. art, has: 2 figures.
SUB CODE: 07/ SUBM DATE: 28Nov63/ ORIG REF: 002/ OTH REF: 000
Card W

-23867-06 EWT lip (c m4m
ACC NRt ATbUO9943 '_9ouRcE'cobE.- LTR/0000/65/000/000/0242/0246
AUTHOR': - Svchev... Yu. Ks; Vlasov, L* G.; Lapitskij, A. V.
At.
r
."r
ORG: none 13
TITLE: Possibility of_2gEjbLiLng niabium during the chlorination of h205
SOURCE; AN MR. Otdeleniye obshchey i tekhnicheskoy khimii. Issledovaniya v oblas-
ti khimil i tekhnologii minerallnykh soley i okislov (Studies in the field of chemis-
try and technology of mineral salts and oxides). Moscow, Izd-vo Nauka, 1965, 242-246
TOPIC TAGS: niobium compound, metal purification, chlorination
ABSTRACT: An attempt was made to foilow the behavior of certain impurities found in
niobium pentoxide during its chlorination and to carry out a preliminary purification
of niobiun pentachloride during the chlorination process. The following labeled micro-
impurities were used: iron-59$ calcium-45, tin-113, phosphorus-32, and cadmium-Ile.
Niobium metal was chlorinated and the NbCl5 formed wbia-dissolved in cone. HC1.1 Solu-
tions; of the isotopes were then added,to portions of the HC1 solution, and the speci-
--fit -arctivity --was---determine&-- -The -pentoxide-was-,then-precipitatp!~ with ammonia and the
degree of coprecipitation was determined by.measuring the residual activity of thve____
filtrate. Chlorination of Nb705 labeled with tin-113 confirmed that niobium penta-
chloride can be separated from group II impurities, since the pentacbloride obtained
Card 1 '2

L 2386744
ACC NR, AT6009943
was free from them. It is thought that group I impurities can also be separated.
Phospbo2nis could not be removed, apparently because of the formation of the thermally
stable ccoplex POCIVAC15. Orig. art. has: 5 figures, 3 tables.
SUB CODE: 07/ SUBM DATE: 24Feb64/ ORIG REF: 004/ OTH REF: 004
2/2,00-ol

STREKALOVSKIY, V.N.; BEKETOV, A.R. ;,~LA~.0yV,.G.-.-
Nature of the oxide U02 91 Zhur. neorg. k-him. 9 no.10:2496
0 164. (MaRA 17:12)

uAsov) V,
Chemical Aboto
Volo 48 No. 9
May l0v 1954
Gengrel and physical Chemistry
&ACgoni 0i
--7d, Ilth lid car-
FT. aud .
0 - . 25; 1' N- SLrebtennik
flon)
-See C.A 47, 4704h.

ACCESSION NR: AP4029535 S/0149/64/000/002/0135/0139
AUTHOR: Tkachenko, Ye.V.;-Vlasov, V.G.; Semavin, Yu.N.
TITLE: The effect of a method of introducing K2C03 additives on the kinetics of
.carVon thermal reduction of the higher oxides of uranium
SOURCE: IVUZ. Tevetnaya metallurgiya, no.2, 1964, 135-139
TOPIC TAGS: uranium trioxide, uranium, octoxide,'potassium carbonate, additive,
-ABSTRACT: The authors state the potassium carbonate, on decomposing, activated re-~
.agents which caused an increase in the reduction speed; on the other hand, the
reaction of potassium corbonate with uranium oxides led to the formation of uranates
.on the surface of the oxides reduced which in turn screened a portion of the surface
.and, thereby, lowered the reduction speed. Therefore, the total effect of the po-
tassium carbonate additive on the carbon thermal reduction of uranium oxides was de-
termined by the ratio of 2 of these factors which act in opposing directions. In
the reduction Of U03 (4600)9 the action of the potassium carbonate additives basic-,;
ally led to the inhibition of the reduction process due to the screening effect of
potassium uranate that was formed. In the reduction of U306 (7000),along with the
.formation of*-uranates, dissociation of K?C03 also occurred. It was established that
'Card 1/2

ACCESSION NR: AP4029535
with all the variants of introducing the additives, an acceleration proces"Of U30n
was observed. The greater the degree of the process of acceleration the fewer the-
potassium uranates were formed. There-fore, the greatest velocity increase occured
with the introduction of a dry additive into the reducer. Orig. art. has; 3 figures.
ASSOCIATION: Uralloldy politekhnigheskiy institut (Ural Polytechnical Institute)
SUBMITM: 03Jun63 DATE ACQ: 30ipr64 ENCL: K
SUB CODE: HL NO REP SOV: 017 OTMM.- 000
Card
2

ACCESSION WR: AP4029534 S/0149/64/000/002/0130/0134
AUTHOR: Vlasov, V. G.; Beketov, A. R'.
a ,_-wpff -A"~ M6---
IMIE: Dissociation of P-UO3
SOURCE: IM Tsvetnaya metallurgiya, no. 2, 1964, 130-134
'TOPIC TAGS: beta uranium-trioxide, dissociation, x-ray analysis, x-ray phase
analysis, phase conversion
ABSTMT: The authors investigated the results of x-ray analysis of the P-uranium
trioxide system. The dissociation of 0-uranium trioxide in a vacuum was found for
various temperatures. On the basis of kinetic and x-ray phase methods, the forma-
tion of the phase `U3OS4.x was shown. The following procedure of phase conversion and
the dissociation process of P-uranium trioxide was proposed:
0_`U%_U308i_x _U 308
max
A discussion of theIres,41ts is presented from the position of modern representations
of solid state physics and the electron mechanism of chemical reactions. Orig.
Card

-ACCESSION NR: "'AP4029534--
art. has: I figure and 1table.
ASSOC=ON: Ural'skLy politakhnicheakiy institut (Ural Polytechnical Inst.itute)
~SUBMTTED: 14Jun63 DATE ACQ: 30Apr64 LINCL; 00
iSUB CODEI; ML NO REF SOV*. 008 M 007

LISNYAK, S.S.
Effect of briquetting on the kinetic characteristics of magnetite
reduction by graphite. Izv. vys. ucheb, zave; cherne met, 6
no.lOil2-17 163. (MBU 16:12)
1. Urallskly politekhnicheskiy institut.

ZH"07SKIY, V.M.;_YWqV,_7.G.
Interaction of urani= trioxide with decomposed a=onia
in the prose4ce of some foreign oxide addition all Dokl.
AN SSSR 153 ho.5:1077-1080 D 163. (MIRA 17:1)
1. UM.1'ekiy politekhnichaskiy inotitut im. S.M. Kirova"
Predbt!~-, no akademikm A.A. Balandinym.
-W

VLASOV, V.G.; BESSONOV, A.F.
Oxidation of uranium diiGxide by- air in the presence of added
carbonates and oxides. Kin.i kat. 4 no.5;666-671 S-0 163.
(MIRA 16:12)
1. Urallskiy pol-itekhnicheskiy institut imeni S.M.Kirova.

VLASOV, V.G.; SHALAGINOV, V.X.,- BESSONOV A.F.; STREKAWVSKIY, V.N.
I
Change of the design of a glass pressure regulator. Trudy Ural.
pol.Ltakh,inst.no.l2lslO2-l03 162.
(MM 16:5)
(Pressure regulators)

VLASOV, V.G.; ZWKOVSKIYI V.M.
ReductionjDf uranosouranic oxide bj decomposed a-mrsonia. Zhu--.prikl.L.
khim. 36 no.1:42-47 Ja 163. - (19RA 16:5)
1. Urallskiy politekhnicheskly Institut imeni S.M.Kirova.
(Uranium oxides) (Reduction, Chemical) (Ammonia)

BABUSHKIN, V.F., mashinist-instruktor; VLASOV, V.I., mashinist-instruktor-
Characteristics of operating N8 electric locomotives during the
winter mojiths. Blek. i tepl. tiaga 2 no.3-1:10-11 H 158.
(MIRAL 11:12)
l.Depo Ir)mtsk II Vostochno-Sibirskey dorogi.
(Blectric locomotives-Cold weather operation)

VIASOV, V.1.,mashinist-Instruktor
Improve the quality, of locomotive air lines* Zlek. i teple
tiaga 2 no.12:36 D '58, (MIRA 12:1)
1, Lokomotivnoye depo Irkutsk II, Vostochnc4ibirskaya dorogu.
(Blectric locomoti*ee)

VLASOV, V.I.
Stratigraphy and conditisns governing the formation of coal,
bearim, sediments in the eastern part of the Ili Deprr-,ssicn.
izve AN Kazakh. SSR, Ser.geol. no-3:28-43 162. NIRA 15:7)
(Ili Depression-Coal geology)

VLASOV, Valerian Ivanavichj BMYlANj Yakav Isaakovlchj KISLOV, A.G*.1
PORTNOYp S.I., otv. red.;
AZAROVA) I.G.p red.; TSAL, R.K.) tekbne reds
(Design of the high-frequency,units of radar stations] Pro-
ektirovanie vysokochastotnykh'uzlav radiolokatsionnykh stan-
tsii. Leningrad, Gos.soiuznoe izd-vo sudostroit. promyshle
1961. 356 p. (Radar) (microwaves) (MIU 15:2~

SIMUM, A.G., kani.tekhn.nauk; STIRLIN. B.Ya., kand.tekhn.nauk; TROSIKO,
V.I., Inzh.; SHATOV, N.K., inzh.', VIASOV, V.I., inzh.; METELWK,
N.D., luzh.
Refining of cottonseed oil in a micella. Maal.-zhir.prom. 26 no.12:
30-32 D 160. (MIRA 11:12)
1. Vaesoyuznyy nauchno-iseledovatellskiy Institut zhirov (far
Sargeyev, Sterlin). 2. Sredneaziatakly filial VsesoyU.7--nogo nauchno-
issledowatel'skogo institute zhirov (for Troalko). 3. TSentrallnoye
konstruktorskoye byuz,o Vaesoyu-7nogo nauchno-isaledovatel*,.;kogo
inatituta zhirov (for Shatov). 4. Kokandskiy maslozhirovoy kombinat
(for Vlasov). 5. Yerganskiy maslozhirovoy kombinat (for Perepelyuk).
(Cottonseed o11)

RZIMMIN, V.P., kand.tekhn.riauk; BELOVA, inzh.; TRLOSIKO, U.I.,
inzh.; KONEVA, Ya.A., inzh.; BOFSHICILN, S.T., inzh.; VI.P-SCV,
,_V ',HTEYII, G.V., inzh.; VTZHIRAYEV, G.T.,
.1,, inzh. ; ROZEM
inzh.
Separation oLC gossypol from prepasged oils and micelles with
anthranilic acid. Masl. - zhir. prom. 27 no.8:26-29 Ag 1.61.
(MIRA 14:8)
1. Voesoyuznyy nauchno-issledovatellskiy institut zhirov (for
Rzhekhin, Belova). 2. Sredneaziatskiy mial Vsesoyuznogo
nauchno-izisledovatellskogo instituta zhirov (for Tro5lko, Koneva).
3. Kokandskiy maslozhirovoy kombinat (for Borshchev, Vlasov,
Rozenshteyn, Tadzhibayev).
(Gossypol) (Anthrarilic acid) (Oils and fats)

S'OVIJ-3~-511-5-71 2"
Q '/ ,
ATjTHORS: Levin, A.I., and Vlasov,-V.',1.-.-
TITLE: Ways of Further Improving and Intens.J-fying the
Electrolytic Refining of %Copper (Pult'-'J- dallnriyshego
uluchsheniya i intensiftikatsii pi-citsesssa
elektrorafinirovaniya medi)
PERIODICAL: Tsvetnyyr metally, 19599 N-.- 5, pp _Q-38 (USSR)
ABSTRACT: A.I. Levin, with others (Ref 1) bias s-j:t down optimal
conditions fox the electTolytic iefinin)z of c-opper.
Experience at the Pyshma madeelil~ctr:-,-.-I' f-tyy zavod
(Pyshma Electrolytic Copper Works) juggests that the
practice there (as at other Soviet; works) J,~ equal to or
better than the best abroad (Ref '20,, 9Af;9Prh?n1nsk 95%
1- 3 manhine time
current utilization is obtained w
of the series. Electrolysis is effar,-tod at 54-51" OC and
a mean current density of 190 amp/m2 witth). eleclt;~()lyte
containing 133 and 185-195 g/iltza of copped sulphate
and sulphuric acid, respe,-ti.vely. T!"'9 ~:8115 aze of
identical dimensions facilitatIng he TiSe of prefabricated
linings. Corrosion of starting sheets (most iritense at
Card 1/3 the liquid surface) has been reduc.Eid by iead-platlng their
top parts (suggested '~y Y.I. Nombarg and S.P. Pyunnenen).

SOV/1,16-59-5-7/21
Ways of Further Improving and Intensifying the Eiect-rolytic
Refining of Copper
Stainless steel (type M18NM starting sheets have
given loiig service, but havo not proved easier to strip
than copper sheets. This stain-leas steel has found wide
use in the electrolytic plant- (e.g. for electrolyte
heating tanks, pumps etc VzD author -onsiders the
current density used to ~9 insufficient and discounts
the view that high current- den:iity prac~iu-a leads to
deposit defects due to the depos-ition of antimony,
arsenic, bismuth and oth6r hdrmfful impurities. Such
effects can be avoided by pr-;per proce(luras. Cathode
quality can also be iinproved by zi.,!Ltitions of surface-
active agents and much work in this direction has been
done by Gintsvetmet, the Urallski-y politekhrdcheskiy
institut (Ural Polytechnical instit-~O;-,) and the works
research laboratory. The offect of' mixtures of surface-
active agents has been found bc; bc gr,3at,,j.- t1mn that of
individual agents (Ref 5). Th3 author d-Ls(.usses ways of
reducing electricity consumptica: -inoreasing 5ulphuric-
acid concentrationi in-_,reasing t;;~mps:~atura~ reducing
Card 2/3 inter-electrode distance; imP:t-ov`-_ng .-ontact arrangements.

SOVIIIJ'~~")-59 - 5-7/21
Ways of Further Improvin.g and intensifyi.-Aig th:i
Refining of Copper
Current leakage ::!an I= an impoL-t~t;-1-It (Rif 0) , and
heat lossos should ba by the electrolyte
surface. In view of the 1959-196:'; devoloumont planned
for the Ural non-ferrous metals imbastry many new
features aro to be intraducod into Pysh-ma practice
and research, e.g. on ruioing tao, c-.i'oivjnr, (.ioA,j1ry to
Card 3/3 250-2'/0 amp/m2, is to p7ao~.Iod.
There are 9 rel"eren,:,as, of wh-Jah P) ar~) Sc-i,,iat and 1
English.
ASSOCIATIONS: Urailskiy politeldnulch-o5kiy (ttal
polytechnical Insltituts) and PYS11171in".1ri.."I mct-daelektro-
litnyy za-;od ( Pyshma Works)

VL&Sqjj_Y,,~shinist-instruktor
Suggestions on the further improvement of the circuits of an N8
electric locomotive, Zleko i tepl. tiaga 4 no. 12:3 D 060,
(MIRA 14 -'l)
1. Depo Irkutsk II Yostochno-Sibirokoy dorogi.
(Electric locomotives)

V~ASOV, V.I.
Pri-aciples of designing mechanisms for pneumatic control
systems of crankshaft forging and press working mackidnes.
Kuz.-shtam. proizv- 4 no.3:19-24 Mr '62. (KRA 15:3)
(Forging machinery) (Pneumatic control)

'VASOV., V. I.
Preaise calculations of disk brakes for forging crank
presses* Kuz. ahtam. proizv. 4 no.11:24-29 N 162.
(MIRA 15:11)
(Power presses-Brakes)

V. I.
Technology
Stallnoe litle v metallicheside foriW. Iz opyta zavoda iran. L. It. Kaganovicha (Gansting
steel in metallic forms). Ibskva, 14ashgiz, 1951. 88 88 p.
Monthly LiLt of Russian Accessions, Library of Congress November 52. Unclassified.

1 . VL,-,SOV,-V. - -I. -- - -- - - -- - - -- I
2. ussR (6oo)
4. Steel Castings
7- Effect of the transportation method for forms on the quality of
steel castings, Lit. proizv., No. 12, 1952-
9. Monthly j!ist 2.f Russian Accessions, Library of Congress, 11pril., -1953, Uncl.

137-58-6-13397
Translation from: R eferativnyy zhurnal, Metal lurgiya, 1958, Nr 6, p 321 (USSR)
AUTHOR: Vlasov, V.1,
TITLE: The Effect of Casting Defects on the Fatigue Strength of Castings
(Vliyaniye defektov otlivok na ikh ustalostnuyu prochnost')
PERIODICAL: Sb. dokl. po stall n. otlivkam i povysheniyu ikh kachestva.
Moscow, 1957, pp 58-76
ABSTRACT: Investigations performed dealt with the chemical composition,
mechanical properties, and type of failiir~ of a number of cast-
ings. The following factors were found to, be the primary causes
of premature failure of heavily loaded castings operating under
cyclic static and dynamic loads: a) casting defect5 in the form of
blisters, pores, friable zones, and cracks caused by fatigue pro-
cesses; b) surface defects in the form of indentations, rough
spots, films, and tucks and notches produced by pneumatic
chisels. The formation of fatigue cracks is also aggravated
by welding defects and, particularly, by fractures and cracks
which appear in the vicinity of welded joints in the process of
shop welding. Investi ations demonstrated that low-alloy steel
Card 1/2 containing 0. 14-0. 26i~)o C, 0. 6501. 490/o Mn, and 0. 17-0. 63/o Si