SCIENTIFIC ABSTRACT PAKHOMOV, V. I. - PAKHOMOV, A. I.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001238810010-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: August 1, 2000
• Sequence Number: 10
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

q.
5/86 62/000/000/017/022
B125YB108
AUTHORSs Akhiyezer, A. I., Faynberg, Ya. B., Selivanov, N. P.,
Stepanov, K. N., PakhogLs2v, V. I., Kovalev, 0. V., Khizhnyak,
N. A - , Gorbatenl~~oY- F. , Bar'Ya-0htan, V. G. I Sharshanovv A, A,
TITLEj Linear electron acceleratorsfor high energies
SOURCEs Teoriya i raschet lineynykh uskoriteley, sbornik statey. Fizq-
tekhn. inst. AN --'c, by T, V. Kukoleva. Moscow,
Gosatomizdat, 1962, 243 - 509
TEXTs This paper, finished in 1955, is a voluminous report on the most
important results obtained at the Fiziko-tekhnicheakiy institut AN USSR
(Physicotechnical Institute AS U-kr.SSH) between 1948 and 1955 as to the
proper choice of an accelerating system and its optimum parameters, as well
as on the dynamics of the electrons inside the accelerator. One of the most
efficient systems is the 'n12 triveling wave type accelerator segmented by
annular metal disks (designed by V. V. Vladimirskiy). The calculation of
such a waveguide with the balkinshow-Brillouin method (J. Appl. Phys., 20,
634 (1949)) is demonstrated. The radial motion of the electrons in a Bev-
accelerator under the action of terrestrial magnetism and gravity should be
Card 1/2

S/861/62/00(,/000/017/022
Linear electrin accelerator... B120106
compensated by the comb ined mr~jzni tic fields of rectilinear currents anc a
small number of electromagnets. in sacn a case, detectors are necessary
indicating the displacement of tne beam by the fields of the correcting
magnets. Owing to the great lengtn of linear accelerators, an additional
radial focusing on the principal section is necessary. In the first sedtion
and in the injector this will be achieved by strong longitudinal magnetic
fields. In the principal section radial focusing can be achieved by short
magnetic lenses (diameter 50 cm) producing a longitudinal magnetic field of
-1000 oe/cm, or by a system of four-pole lenses. Both systems can reduce
the beam radius at the output of the accelerator to 0.5 cm. There are
I figure and 18 tables.
Card 2/2

PAKSMV, V.I.; STEPANDV, K.N.
Fadesion of low-frequaiscy vaves by ions and electrons in a
magneta4ctive plasma. Zhw.ekep.i teor.fis. 43 no.6s2l53-2165
D 962. (WRA, 16i1)
1. Fisiko-tekbnichookly institut AN UkrM.
(Plagnetobydrodynaidem) (Plasms, (Ionized gases)) (Waves)

ACCESSION NR: AT4036039 S/2781/63/000/003/0017/0036
AUTHORS, pakhomov, V. I.; Stepanov, K. M.
TITLE: Radiation of low-frequency waves by ions and electrons in a-
magnetoactive plasma
SOURCE: Konferentsiya po fizike plazmy* i problemam upravlyayemogo
termoyadernogo sinteza. 3d, Kharkov, 1962. Fizika plazmy* i prob-
lemy* upravlyayemogo termoyadernogo sinteza (Plasma physics and
problems of controlled thermonuclear synthesis); doklady* konferen-
tsii, no. 3. Kiev, Izd-vo AN UkrSSR, 1963, 17-36
TOPIC TAGS: magnetoactive plasma, plasma electromagnetic wave,
plasma ion oscillation. plasma electron oscillation, Cerenkov radia-
tion, bremestrahlung, cyclotron radiation, plasmoid I
ABSTRACT: Cyclotron radiation of ions having a velocity of the or-
der of the average thermal velocity of the plasma ions is considered.
Cwd 1/3

ACCESSION NRt AT4036039
In addition, the Cerenkov radiation of electrons in the low-fre-
quency region is considered. The intensity of radiation is deter-
mined with allowance for cyclotron absorption of the emitted waves
by the plasma ions and the Cerenkov absorption by the plasma elec-
trons. 7`he radiating and absorbing ability of the plasma and the
equilibrium intensity of radiation in these frequency regions are
also determined. The expressions obtained for the intensity of
radiation of an individual particle can be used also to estimate
the intensity of radiation of charged-particle plasmoids moving
through a plasma. If the plasma dimensions are smaller than the
radiated wavelength, then the intensity of radiation becomes propor-
tional to the square of the number of particles in the plasmoid (co-
herent radiation of the plasmoid). In the case of low frequencies,
which is considered in this article, the wavelength in large and
therefore the radiation can be coherent even at relatively large,
plasmoid dimensions. "In conclusion the authors are deeply grateful
to A. 1. Akhiyezer and V. F. Aleksin for a discussion of the work
Cwd 2/3

.ACCESSION NRs AT4036039
'and for useful advice. Orig. art. bass 50 formulas.
;ASSOCIATIONt None
SUBKMEDS 00 DATE ACQs 21May64
BUD CODRs MEj, NP NR REP SOVs 011
ZNCM 00
0 000
Cmd 3/3

to
pro X.4
J& us
OT-m
7Y4-t

PAKHOMDVO V.I.; STEPANOV, K.N.
Radiation of an electron moving along a spiral in a magneto-
active plamme . Part 2. Zhur.tekh.fiz. 33 no.1243-50 Ja 163.
(KM l6s2)
1. Flzikootekhnicheakly institut AN UkrSSR Kahr1kov.
(Plasma (Ionized gases)) (Eleatronel (Radiation)

f 631

ACCESSIM MR: AP4009916
S/0057/64/034/001/0016/0022
AUTHOR: Pakhomov, V.I.
TITLE: On radiation by ions traversing a non-isothermal magnetized plasma
SOURCE: Zhurnal tekhnicbeskoy fiziki, v.34, no.1, 1964, 16-22
TOPIC TAGS: plasma, non-isothermal plasma, magnetized plasma, plasma emittance, Lar.
mor frequency harmonics, Alfven waves, magneto-acoustic waves, magnetic bremsstrah-
lung, ion radiation, plasma Cerenkov radiation
ABSTRACT: An involved expression for the dielectric tenser of a magnetized plasma
in which the electron temperature greatly exceeds the ion temperature is written
without reference or discussion. Additional terms that become important when the
frequency is near a harmonic of the ion Larmor frequency are given, and the disper-
sion equation deduced from this dielectric tensor is written. The electromagnetic
field of an ion moving in a helical path through the magnetized plasma is quoted
from an earlier publication CV.I.Pakhomov,V.P.Aleksin and X.N.Stepanov,ZhTF,31,1170,
1961). From these equations the intensity of radiation from the moving ion is de-
duced. In the neighborhood of the Larmor frequency, the expression obtained is valid
Card'/$

ACC.NR: AP4009916
only for fast ions, but it is valid also for slow ions at harmonics of this frcquc;r
cy. The radiation intensity from the moving ion is averaged over a Maxwell distribu-
tion, and the resulting contribution of magnetic bremsstrahlung to the emittance of
the plasma at hai-monics of the Larmor frequency is given. The dispersion equation
is tractable in two limiting cases: when the Alfvon velocity exceeds the velocity
of sound, and when the frequency is much less than the ion Larmor frequency. In the
former case there are three solutions, two corresponding to Alfven waves and one,
with large refractive index, corresponding to the "sonic" waves. An expression for
the intensity of radiation of "sonic"waves at harmonies of the Larmor frequency is
obtained. This is averaged over the 11-Saxwell distribution to give the contribution
of the "sonic" waves to the emittance of the plasma at harmonies of the Lamor fre-,
quency. The intensity of the "sonic" waves is found to be greater than that of the
ordinary and extraordinary wavas by approximately the factor (VA/vs )2s+l, where vA
is the Alfven velocity, v. is the "sonic" velocity, and s Is the index of the har-
monic. Radiation by fast ions at frequencies small compared with the Larmor fre-
quency is discussed. Expressions are given for the intensities of AII'ven waves and
magneto-acoustic waves radiated by the Cerenkov process. "In conclusion, the auth-
or convoys his deep gratitude to K.N.Stepanov for guidance in the work and to A.I.
Akhiyezer for discussion of the results.! Orig.art.has: 37 formulas and 1 figure.
2
card

L 07hC2-67 EWT(~)_ __ IJP(c)
AM NE A76020582 SOURCE CODE: UR/0000/65/000/000/0186/0189
AUTHOR: Dolgopolov, V. V.; Pakhomov, V. I Stepanov, K. X.
0MG: none
TITLE: On electron radiation in a plasma- netic field boundary layer
SOURCE: AN UkrSSR. Vysokochastotnyye svoystva plazmy (High frequency properties of
lasma). Kiev, Naukovo dumka, 1965, 186-189
TOPIC TAGS: thermonuclear power, plasma magnetic field, electron radiation, boundary
!layer plassa, cyclotron frequency
'ABSTRACT: The energy radiated by electrons in the region of a plasma near the plasma-
magnetic field is calculated. The calculation is made for a low density plasma containL
d by a strong magnetic field such as in a thermonuclear reactor. The computation in
ludes the effect of the anomalous skin thickness which differs from the care of dense
asma. When cyclotron radiation wavelength corresponds to stabilizing oscillation of
F
.,the plasma and Doppler broadening (of the order of cyclotron frequency) is included,
IQ intensity of the cyclotron radiation emitted by the plasma in given by the equa-
Irion
03v T e3n'hp
0
1/2

L 07402-67
~ACC NRt AT6020582
-o radiation
en the plasma polarization is accounted for, the intensity of cyclot,
'decreases by a ratio of electron rest mass energy to plasma temperature. It is also
Ahown that cyclotron radiation is smaller (by the same ratio) than the bremastrahlung
Iradiation. These relations bold provided no generation of plasma waves occurs. Orig.
lart. has: 8 formulas.
I
iSUB ODDE: 20/ SUBM DATE: 19Nov65/ ORIG REF: 003/ OTH REF: 001

L 44370-66 E-~'TW/EWPH )ITIE',111)(v)
ACC NRi AP6023060 ~k) SOURCE CODE: UR/0191/66/000/004/0018/0019
AUTHOR: X-ah9mov, Y".1j, Bazhenova, T. S. S
ORG: none
TITLE: Alk 1-(aryl)-glycidoxysil d siloxanes
SOURCE: Plasticheskiye massy, no. 4, 1966, 18-19
TOPIC TAGS: adhesive, epoxy plastic, silane, siloxane, organosilicon compound
ABSTRACT. Several alkyl-(aryl)-glycidoxysiloxanes were synthesized by two methods-
(I) ester interchange of glycidols of silicoorganic oligomers and monomers containing
methoxy-groups connected with silicon atom; (II) substitution of hydrogen in hydrido-
alkylsilanes and hydridoalkylsiloxanes by glycidooxy-groups. Method I is represented
by the following scheme:
CwH C#H&
--~i 0- LCH, + (n + 2) CH,-CH-CH,OH Cli,-CH-CH0- -~1-0- -CH,--CH--CH,+
CH30_~ -&
0/ 6.CH-CH
&H. J. 0 0
+ (n + 2)CHIOK
1/2 UDC: 678.84

L 44J70-66
ACC NRI AP6023060
Method II is represented by the following scheme
CH, - Is
H
_~,O- + ncHI-CHCHIO
\C(
H &H,-CH-CH
0
The ester interchange reaction was carried out in a still of distillation column. The
reaction started at 80-1000C and was completed in 0.5-1.5 hours at 130*C. In the pre-
sence of 0.1% KOH or 0.1-1.0% triethanolamine or oxyquinoline, the yields were 75-100%.
The percentages of epoxy-groups, silicon, and the degree of ester interchange are tab-
ulated. The hydrogen substitution reaction started at jemperature in the pre-
7CT
sencp of 0.01-0.901% KOH. The reaction product was a liquidiresin with 2500 cP visco-
si j 30% OXY-1roups, and 22% silicon. The various alkyl-(aryl)-glycidoxysila~i_es
and siloxanes prepared by either method adhered well to glasses and metals. They are
recommended for use as cements or cement components. Orig. art. has: I table, 2
formulas.
SUB CODE: 0701/ SUBM DATE: none/ ORIG REF: 001/ OTH REF: 003
Card 2/2

FILIMONOV, A.A.; LOMDVA, L.G.; SUVOROV, V,S.; PAKHOMDV, V.I,; SONIN, A.S.
Generation of the second harmon:*!7 in votassium iodate single
crystals. Kris-.allograflia 10 no.2;2;-r~-256 kf,--Ap 165.
(MMA '8: ?1

'Dun- UWJSI

------------

TZ
71,

7

SUKHOVA, L.A.; PAKHOMOV, V.I.; LUKOSHKINA, L.A.; KHEYKER, D.M.
Use of tagged atoms for the investigation of the processes of
waterproofing asbestos cement with sodium methyl and eth./l
silicone. Trudy NIIAsbeattsementa no.10:91-102 '59. (MIRA 16:8)
(Asbestos cement) (Waterproofing)

PAKHOHOV, Vasiliy Ivanovich
[Protecting the health of troops and first aid in combatj
Okhrana zdorovlia voinov i pervais pomoshch' v boiu. Noi3kva.
Voen.isd-vo, 1960. 207 p. (MIRA U.-B)
(KWICIN2. MILITARY)

PAKHOMOV, V.N.; POZHIDAYEV, A.V.; DENISM, B.D.
-,
Defects in air switches for electric arc furnaces. From. energ,
18 no.11:106-13 N 163. (MTRA 16:12)

PAKHOMOV, V.N., inzh.
Accounting for injuries from electricity and nor,~~ompliances
with safety engineerIng regulations. Prom.en~~rg. 20
23 D 165. (Y.: R-A 18: 12 )

PAKHOMOV, V.P.; PURESM, N.F.
Color vision thresholds and color vision stability in persons
suspected of having glaucoma and in patients with the ini-
tial phase of glaucoma. Vest. oft. 76 no.lt2l,-26 Ja-F'63.
(MIRA 16:6)
1. Kafedra oftallmologii (nachallnik - prof. V.L. Pblyak)
Voyenno-meditsinskoy ordena Lenina akademii imeni S.M. Kirova-
(GLAUCOMA) (COUIR BLINDNEW)

Pt
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B T -V A, J~ . .1 , _ ';, ; -, , . : .
is Omer! tr~jr.lz r)-ma 'A rb "ec; hylrv, a rt~"r: ',7,+-
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y
an a ":m_ r-,M:.
u ; j--~ InL;Litut n.!!'1.f..-
1, 7h Koln. .-,!, 1YEA i,G spoj,~ "ro"It"OT

BEREZYJN, V.G.; PAKHOMOV, V.P.; ALISSHOYEV, V.R.; STAROBINETS, L.L.; MARKOVICH,
Z.P.; SEDOV, L.N.
Some new methods of st-lying polymeric compounds by gas chromatc-
graphy. Vysokom.soed. 7 no.1:185-187 Ja 165.
(MIRA 18:5)

z:T_~;-I.,
2_7
P4
-_mPu_Hd6"dar. thezindutiof jho-~-~d'oht=- -- --iw - b d the: front bf the..,
'w -7move eyon
upon-
~-~'-'Tbe-~equipment-As ligured, tables- an s pre-,
a!.
~:jpr :- A g U
ovi a li3ed"the ors
Zhul~.h
A. auth ~,ca
Tlry.=
-0 :art..--: has-v. 4 figures and-I I
m
~~_T_ASSOCMTIOM.~~ne,-7
L
PRAUTT
OP
v
.7z
7_
c -5:

,ed Be Au~,66rrosion- rate

PAUD)OV, V.T.
Accunaated experience In
vulcanization of 12-00-18
plan machine &t the Moscow
45 AP 16o.
manufacturing curing chambers for the
tire c&sInV by means of a 6-lnzh extru-
Tire Futory. Kauch.i res. 19 no.4t42-
(MIR& 13-12)
I. Moskovekly shinW samod.
(Moscow-Tirem. Rubber)

GOROKIIOV, V.V~- PAKHOHOV. V.T.; LVfBCqlK. S.G.
Tire 5.60-15 with removable tread riqgs and a radial spaciqg of
cord threads in the carcass designed for the nHoskvich-4070
automobile. Kauch.i res. 19 no.9:49-53 5 160. (MIRA 13.10)
1. Moskovskiy shinnyy zavod.
(Tires, Rubber)

MAIIKOV, F.F.; IAZAREV, G.S.; PAIOiOMDV, V.V.
1_ .
New units for cooling metal-cutting tools. Haahinostroitell
no.9:33-34 S 163. (MIRA 16:10)
(Metal-cutting tools-Cool-ing)

KARPACH-n, P.S., starshiy prepodavatel'; PARHOMOV, V.V., inzh.
New method of ap!lyinp visc,-)us mastics on shoe parts. Nauch.tr%jdy
MTILP no.18:14?-154 '6C. (xu~ --5: z ;
1. Kafedra mashin i apparatov leFkoy promyshlennosti Moskovskogo
tekhnoloVicheskovo instituta legkoy promyshlennosti.
(Shoe machinery)

V V

v)/ZWPI 4) ZlMittkl U640(bikomil-) Wt-41-6
Ijp(c)
A
-AP400605 F651boolt"100WOOW
5 SOMM COM 410381~
So A.43blghklm Pkkbooml v
IZ
ko

ACC NR, AP7005141 SOURCE CODE: UR/0126/66/022/004/0640/0640
AUTHOR: Pakhomov V. Ya.; Kunakov, Ya. N.; Xachur, Ye. V.; Layner, D. 1.
ORG: Scientific Research and Design and Planning Institute of the Rare Metals Indus-
try (Nauchno-issled. i proektnyy institu-, redkcmetallicheskoy promyshlenno3ti)
TITLE: The effect of microinhomogeneity on the critical points of superconducting
alloys
SOURCE: Fizika metallov i metallovedenlye, v. 22, no. 4, 1966, 640
TOPIC TAGS: critical point, superconducting alloy, lattice defect, grain structure,
homogenization heat treatment, cast alloy
ABSTRACT: The effect of a homogenization anneal on the critical current density of
Nb-46% Ti and alloy-2 was studied. The purpose of this heat treatment was to elimi-
nate intercrystalline liquation which exists in the as-east alloys. It is known that
the Lorentz force can cause a creep of magnetic current that may result in the loss
of superconductivity. Different types of metallic defects (inhamogeneities, disloca-
i
;tions, internal stresses, etc.) may act as stabilizers against the creep. ror the ex-
:periments, 40-gram ingots were melted in a radiant arc furnace with tungsten elec-
Itrodes in a purified helium atmosphere and hanogenized in a vacuum furnace at 15000C.
IThe homogenized ingots were cold reduced into 0.25 mm diameter samples. All samples
1/2 UDC: 537.312.62

ACC NR&
had similar cold reductions. Critical current densities were measured in a trans-
verse magnetic field of 16 kilooersted at 4.20K. The critical current density was
given as a function of ingot homogenization time which ranged from 1 to 5 hours. In
both alloys, the critical current density was lowered by hmogenization. The criti-
cal current density for Nb-46% Ti decreased linearly from about 1.8-104 a/=2 in the
as-cast condition to about 104 a/cm2 after 5 hours of ingot homogenization. Alloy-2
dropped sharply from 2.104 a/cm2 to about 104 a/CM2 after 1 hour of ingot homogeniza-
tion, and remained constant thereafter. All of the samples had a similar disloca-
%ion density of 1011_1012 cm-2, characteristic of severely deformed metals. The
microstructure of as-cast ingots showed intercrystalline liquation, which decreased
as a function of homogenization time. After 5 hours at 15000C, almost all of the
Uquation was absent in both alloys. Analogous results were obtained in the alloys
Nb-75% Zr and 65 BNT in which the critical current density after homogenization
changed from 1.3.1()4 and 2-104 to 7.8-103 and 1.2-103, respectively. orig. art. has-1
I figure.
SUB CODE: 20,11/ SUBM DATE: 02Feb66/ OTH REr: ool
Card 2/2

A FJfTYRSK I Y, in Z~..; ! !, i. . , I nzr..
~'A,KtO~C 7. " 9 n z r .
Comp I ex 3 Kr. a. tr a,
no. 11 :9-11 N 164.

ANMMEV, V.P..oolkovnik,; BORISOV, D.S., polkovnik.; YEVTUSHMO, A.F..
polkovaik.; ZHEMYM. V.1-,dots., kand. tekhn. nouk, genera 1-leytena nt
inabenernykh voyak, otv. red.; TSIRLIN. A.D.. doktor vr'%nnilrb nauk,
general-polkovnik inzhenernykh voy9k. red.; NAZAROY. K.S., dots..
general-nolkovnik inzbenernykh voysk v ostavke,red.; BADANIN,
B.V.. polkovnik v zapase,red.; BABUSHM, K.fi.,polkovnik. red.:
TSEGMKO. P.G..polkovnik, red.; YXICLIMOV. P.A..polkovnik, red.;
MROZRZHINOV. Te.G..polkovnik,red.; PAKHOMOV. V.Ta., polkovaik, red.;
SKIUOV, V.V.,polkovnik. red.; GORMAKO, A.b.."p-odpollrovaik, red.;
)MIKOVA. A.U., takhn. reC
Dngineers of the Soviet Army in important operations of the
Great Patriotic War; a collection of articles] InzhenerzWe voiska
Sovetskoi armii v vazhneishikh operatsiiakb Yelikoi otechostvennoi
voinV; abornik statet. Nosirva. Voen. isd-vo H-va obor. SSSR. 1958. 309 p.
(MIRA 11:12)
(World War.1939-1945--Engineering and construction.) 1.

SAVITSKIY, Ye.M.; BARON, V.V.; KARASIK, V.R.; AKHMEDOV, S.Sh.; PAKHOW.V, V.Ya.;
BYCHKOVAP M.I.
Producing a high magnetic field with the aid of a Oiobium-zirconium
alloy. Prib. I tekh. eksp. 8 no.1:182-183 Ja-F 163. (MIRA 16:5)
1. Fizicheskiy institut AN SSSR.
(Magnetic fields) (Niobium-airconium alloys)

PAKHOMW LV.Y-&-.p inzh.; FKNZIN, L.I.; ARMIPOV, L.P.; SHILOV, A.S.,
sfi~~ay prepodavatell -
The mercUry-41re rectifier has been installed outside the traction
substation. Elek. i tepl. tiaga 6 no.11:12-13 N 162.
(MIRA 16:1)
1. Zamestitell nachallnika Barabinskogo uchastka onergosnabzheniya
(for Penzin). 2. Nachallnik tyagovoy podstantaii Koxhurla (for
Arkhipov). 3. Omakiy institut inzhenerov transports (for Shilov).
(Mercury-arc rectifiers) (Electric railroads-Subiktationa)

MOCHENOV, I.G,p kand.tekhn.nauk; ENITRITEVSKIY, G.V.; PANFILI, L.S.; PAYMOMOV,
V.Ya.; VOLKOV, N.N.
Efficiency of voltage regulation at the tractive substationa. Zhel.dor.
transp. 46 no.11:72-75 N 164. (MIRA 18il)
1. Glavnyy spetsialist Glavnogo upravlaniya elektrifikatsii i energetiche-
skogo khozyaystva (for Dmitriyevskiy). 2. Nachallnik s1uzhby elektri-
fikataii i energetichaskogo "hozyaystva 7apadno-Sibirskoy dorogi (fr--r
Panfill). 3. G:Lavnyy inzh. aluzhby elektrifikatsii i energetiches~ogo
khozyayatva. Zapadno-Sibirskoy dorogi (for Pakhomov).

PAKPOMOV, V.Ya.
Conference on the generalization of practices in the use of ajtD7at4j-
in tractiDn suLstatiDns. Elek.i tepl,tiaga 6 no.1:29 ~a '~2.
(MIRA 15:1)
1. Glavnyv inzh. sluzhby elektrifikat5ii i energeticbeskogo
khozyaystva Zapadno-Sibirskoy dorogi (for Pakbomov).
Mectric railroads--~wbstatlons) (.utomatic control)

BAXff.TN, V.P.; BUBOK, K.G.; BUGARN, L.A.; BUNIN, A.I.; VaROBIYET, K.V.
I)ROZDM# V*Vo; DM(EHOV, M.So; ZUBRILOV, S.V.; IGNATIYZF. L.A.
KABGOPOWV, I*G.; ZWSHIN, D.No; KOWMV. A.M.; VMW, K.8,;
LONW, P.P.; ROLIM. A.S.; MINHAYLOV, M.Ma; NWINOV,.B.A.;
OLIKKOV, N.P.; OSIPOTA. ?.V.-, RU31QV06. 3"~- PIAKSIN. I.N.;
POWHATNOT, S.F.; PUBTYLINIK. 1.I,; Rmaor, i.5.; SAVARI, Ye.A.;
SXIfMI, A.P.; SPIVAKOV, U.N.; SMOIN. I.A.; SUSHMIMV, S.N.;
S7MEIW, P.S.; TROITWIY, A.V.; USHAKOV, K.I.; KHARIAMOV, A.Ye.;
BMK=N, N. 1.
Niiwlal Koustantinovich Chaplygin. TSvet. met. 28 no.2:57-58
Nr-AP '55. (MBA lo: 10)
(Chaplygin. lilcolai Konstantinovich, 1911-1955)

21 (1 )
AUTHORSt Meyerson, G. A., Sokolov, D. D., SOV/8 9- 5-6- 312 5
Mironov, N. F., Bogorad, N. X., jakhomov,
- ----a
Llvovskiy, D. S., Ivanov, Ye.
Shmelev, V. M.
TITLEs Beryllium (Berilliy)
PERIODICALt Atomnaya energiya, 1958, Vol 5, Nr 6, pp 624 - 630 (USSR)
ABSTRACTt The production of beryllium in the USSR is carried out by the
following methods:
1) Electrolysis of Na 2BeF4 or of a mixture of 2BeO-5BeF 2
with barium fluoride. The beryllium obtained is not of high
value either quantitatively or qualitatively.
2) Electrolysis of a mixture of molten beryllium and sodium
chlorides. By this method Be with the following impurities
is obtained:
Fe 0.01 to 0.02 % Cu 0.02 to 0.07 %
Un 0.001 % Si o.01 %
Card 1/5 Ni 0-02 to 0.05 % Cr< 0.003 %

Beryllium SOV/89-5-6-3/25
3) Reduction of beryllium fluoride with metallic magnesium.
The purity of the beryllium produced in this manner is
characterized by the following impurities:
Fe 0.08 to 0.10 % Mn 0.01 to 0.02 %
Al 0.02 to 0.33 % Cu 0-003 to 0-005 %
Si 0.01 to-C-33 % Ni 0.003 to 0.005 %
4) Vacuum distillation.
The beryllium produced in this manner is the purest of all
and contains onlf the following impurities:
Fe 0.005 % Ni 0.003 %
Al 0,003 % Cr 0.005 %
Cu 0,004 % Un C.002 %
The production of metal-ceramic singl, parts is characterized
by the following methods and parameters:
a) By Vacuum hard-pressing (10- 2 to 10-3 torr) it is possible
to produce large single parts or parts having a maximum
Card 2/5 density of 1-85 9/0M3 and being of fine-grained structure as

Beryllium
SCIVI/8 Q- r -6 - 3,!2 5
well as having mechanical properties that are equal in all
directions. At 1120-11500 r the amount of pressure applied
amounts to from 5C to 30 kglcm 2.
b) Hot-pressing in air requires increased pressure values
2
of from 100 to 150 kg1cm
c) For the production of single parts of great density and
strength hot-pres Z3 ing is carried out in metal press molds in
air at from 550 to 6000 C and at a pressure of 4-5 t/cm 2.
d) Productirn of sinrle parts with a density of from 1.75
to 1.82 g1cm 3: Beryllium powder is pressed with 10-15 t/cM 2
pressure, annealed in a vacuum at 1180-12000 C, avid is then
subjected to subsequent treatment at normal temperature and
a pressure of 10-15 t/cril2 or at 500-550' C and at a pressure
2
of B-10 t/cM
The properties of beryllium vary within a large domain in
dependence on purity and structure (according to B. A. Sidorov
and M. 1. Stepanov, collaborators at the laboratory of
Card 3/5 N. N. Davidenkov). The results obtained by means of mechanical

Beryllium
SOV/89-5-6-'x/25
investigations show that the latter depend to a considerable
extent on processing and on the condition of the surface.
Beryllium parts ar,:- easy to grind. The refractoriness of
beryllium in air is very high. After annealing for several
hundred hours at 500' C it does not decay. At 10000 C, however,
the surface begins to be covered with a thick and soft oxide
layer already after one hour. The stability of beryllium with
respect, to water is quite satisfactory. Technical beryllium
contains various inclusions also after the first vacuum-casting,
which, above all, cause the leakage of gas. In order to avoid
this it is advisable to combine vacuum-casting with simultaneous
centrifuging (Ye. S. Ivanov, V. M. Shmelev).
A crucible of beryllium oxide is evacuated up to 1.10-4 torr
after having been filled with pieces of beryllium and closed
by means of a beryllium-oxide stopper. The crucible is heated
to a temperature of 800-9000 C. The furnace is filled now with
&rgon (30-50 torr) and the metal is heated to a temperature of
1450-14700. The crucible is kept at this temperature for five
minutes, after which its contents is emptied Into a rotating
Card 4/5 graphite mcld. The single beryllium parts produced in this

Beryllium SOV/89---6-3/25
3
manner attain a density of from 1.82 to 1-84 9/cm , which
indicates that only very few inclusions exist in the cast
individual parts. There are 5 figures, 1 table, and
4 references, 1 of which is Soviet.
SUBMITTED: August 19, 1958
Card 5/5

Nau- nr -~j v K4r y -ia n C~
o

MnJM,, V.Ya.; BkZ=CH, S-V.; RAVIROVICH, I.M.; KHUDOROSHKOV, I.P.;
PkIninali ucbantiyet Tornikovskiy, K.D.; S07WICMO, A.S.;
PAXHMW# Ye,A.; BLMZWA, O.K.
Pivd%wtiom of f1mced sirter usirg a high basietty siner as fIvx.
Stall 22 no.12&1057-1060 D 162. (MIRA 15312)
1. ftsbne-Tagillskiy meta.Uurgicheskiy kombinat i Tessoy=yy
naucbno-inaledovatellskiy inatitut mekhamichaskoy obrabotki
polesn-ykh iskopaymykh. (Sinterimg)

____E kand-tekhn,nauk; SARATOVSKIY, F.G. , kand.tc-Ithn.nauk
Calculating the optimal iistrinution oll the size of 3tripping
operations according to years witn the use of linear programming,
Izv. vys.uchev.zav.:gor.zhur. 7 no- 4i~0-53 164. (MIRA 11;7)
1. Institut gornogo dela imeni A.A.Skochinskogo.

VINITSKIY, K.Ye... kand.tekhn. nauk;~Alq!OMOV Ye.M.
Optimum criteria and methods of determini-ng the productIve
capacity of mining enterprises. Nauch. soob. lGD 22:122-127
163. (MIRA 17:5)

PA!*HOMOV, Ye., M., Cand. Tech. Sci. (diss) "Investigation of
Methods of Uncoverln~- and Bystems of Open Workin- of Iror. Cre
0 L-1 I
Deposits of 1041A LKursk magnetic anomaly]," Mosr,~ow, 19C1, 16 F~~.
(Moscow Mining Inst.) 150 copies (KL Supp 12-61, 272).

MELINROV, N.V.; SIMKIN. B.A., kand.tekhn.nauk; . -PATHOROV, Te.K., gornyy
Inzh.
Fbasibilities of open-pit mining of rich ores and Iron quartzites
In the Kuznetsk Magnetic Anomaly. Gor. zhur. no. 1:22-25 Ja '61.
(MIRA 14:1)
1. Institut gornogo dela AN SSSR. Lymbertsy, Moskovskoy obl.
2. Chlon-korrespandent AN SSSR (for Kellailrov).
(Zurek Magnetic Anomaly--Iron mines and mining)
(Strip mining)

SINKIN, B.A., kand.tekhn.nauk; MVIDIV. L.A.; FAKROMOV. Te.M., gornyv
inzh.; SMANCV, V.I.. gorn" insh. -
Open-cut mining of 'StoylenskoyeP and "Ywhno-Lebedinskoyel
deposits. Gor.shur. no.9:14-19 S 160. (MIRA 13:9)
1. Institut gornogo dela AN SSSR, IVubertay, Moskovskoy oblasti.
(Kursk PAgnetic Anomaly) (Strip mining)

PAXBDMOV, Ta.M.p kand.tekha.nauk
A method of computing the aptimm output of an open-cut mine by
IfSoverburden. Nauch.soob.TGD 24.'105-1.09 165.
(KIRA 18110)

PAKlir-NU; k a rd , te~' r , I. I L~
rw
~!ne
~r,jr.ej3 as a,". cbjvtiv for mathamat. -e, pr-gr an 1 4 7 1 , 111V 9 -I
zdv. - gor. zhur no, 21-71?-Q,i R;, -- p

Translation from-. Referativnyy zhurnal, Khimiya, 195
9, Nr 14, p 4 4 (1
AUTHOR- kakhomov, Ye V.
TITLE- The Stalingrad Oil Refinery and the Produ~tlon ot' 5,yntheilc Material.-,
PERIODICAL: Stal ingr. prom-st 1 (Sovrarkhoz Stal ijigr, ekon . adm, r-na) , 195R, N,
pp 3 - 7
ABSTRACT- The pr-L-icipal prodliction schedule of the Stalingrad Oil Refinqrry 1F
given for the period ending in 1964, from which it is evident 'r-nat or, tr,~
basis of plant oil gases and unsaturated hydrocarbons I(ethylene, prov~L-~;--
propylene, butane-butylene, ettc.) it will be possible to organlze t.hc-
production of ammonia, fertilizers, fibers, plastles, synthe-tic alco*,-,O'~
and asids, polyethylene resips and many other synthptic mat.erialzz..
G. Margolina
Card 1/1

PAKHDHOV Imenit Tasil$ysvich; XLXrKMVA, I.F., redaktor; TBDIPIMOV,
GGI-Ath-eftly redaktor.
(Ilectric desalting of petroleum; manual for operators and assis-
tant operators] Blektrootmosolivanis nefti; posoble dlia operato-
rov I pomoshchnikow operator. Moskva. Goo. nauchno-takhn. isd-vo
neftianot I gorno-toplivnot lit-ry, 1955. 94 p. (V pomoshch'
novyx kadram neftianoi prozWshlennosti) (MLRk 8:8)
(Petroleum--Refining)

FAKHOMDV I lu.
lamting and ell-4r-ting faulLa in magnetic tape recorders.
Radio no.800-52 Ag 062. OIUK& 15: 8)
(Yagnatic recorders and recording)

PAKHOMOV, Yu.
Detection and elimination of faults In magnetic tape recorders.
Radio no.1:51-53 Ja '62. (MIRA 15:1
(Magnetic recorders and recording--Repairing)

AUTHOR; Pakhomov, Yu. 30V/107-58-2-501/'32
TITLE: Equipment for Remote Acoustical A atne (Apparatura
vynesennykh akusticheskikh sistem7ar
PERIODICAL; hadio. 1958, Nr 2, p 59-6o (USSR~
ABSTRACT- The author describes briefly some types of AM and FM tuners
used in the US, Switzerland and West Germany. There ar-
six drawings and one dia-gram.
1. E--~-ctronf~. equ--,pmttLt---DA-s--gr.
Card 1/1

PAKHOMDVP yu.
UM-50 amplifier with increaec-d jower "tput. Radir, nr,.8353-54
Ag 063. (MIRA 16:9)
(Amplifiers (Electronics))

I- PAKHOMOV, Yu.
Improvement of the operation of the amplifier o~ the 1.L'Auza-,"
magnetic tape recorder. r(adio no.12:.50 1) 161. (ml?, 1--:12)
(Magnetic recorders and recordinF) (Amplifiers (Electronics))

AUTHOR: !~akhomov, Yu.
TITLE: Amp l J_ f iers '64. thout an ~'ut-ut Tr a nsf orm er ---s :. I I -e I Iz
vykhodnogo transformatora\1
j
FER! OD' I CAL: Radio, Irl-511, 1r 8, pl, r-(,-,-6C (USSR)
ABSTR.ACT: The article lists several systems for matching the o-_tput
circuit of an amplifier or receiver to the loudspeaker witl,-
out using an output transformer. The problems have be.~r
widely studied abroad since the output transformer is one
of the main sources of phase shift at high frequencies,
w~iich limits the degree of permissible negative feedback
and, V-.rough that, the quality of the sound reproduct4-on,
There are 6 s-ts of circuit diagrams.
1. Amplifiers--Circuits 2. Transformers--Performance
Card 1/1

PAEHOMOVJI Yu,
Attachment ',o a --~Pferenne Bigna! genera-c7 '7;- meaq-~7:.ng
. Y::: I . I - I.,
L and C . Radio no.6,~:53-54 je 164.

107-57-3-30/64
AUTHOR: Pakhomov, Yu. (Moscow)
TITLE: Selr-_Co-~itr~cied 'Prods for Instruments (Samodel'nyye shchupy k priboram)
PERIODICAL: Radio, 1957, Nr 3, p 30 (USSR)
ABSTRACT: Flexible colored vinyl-insulated wire is recommended for leads.
Prods can be made from a section of bicycle wire spoke soldered to the lead
with a piece of heavy rubber insulation slipped over the spoke and the Bolder
The simplest way of obtaining heavy rubber insulation in to strip it from a
piece of automobile ignition cable. Instead of a heavy rubber sleeve, the shell
of a mechanical plastic pencil can be used; a part of the internal mechanism of
the pencil should be removed. The other end of the lead should be equipped
with a plug. Plugs of 4-mm diameter are commercially available. Plugs of
2-3 mm diameter can be made out of an appropriate tube base. Provision of
one or two alligator clips for convenience in working is also recommended.
There are six figures in the article.
Card I I I

"iFHOMOV, YU.
5 6 , :0t
tlNew Ov-iet ::-inte-l trarsf mn~rsp" ':D Ll, P7 5-5 , 1-51'. 03 -.
SO: 'AL30847, 11- Aug 1954.

12, pit
107-57-6-51157
AUTHOR, Pakhomov, Yu.
TITLE: Modern Mechanical Sound Recording. In the foreign countries
(Sovremennaya mekhanicheskaya zvukozapis'. Za rubezhom)
PERIODICAL: Radio, 1957, Nr 6, pp 58-61 (USSR)
ABSTRACT: The following Western items and constructions are described:
Noise reduction in phonograph records;
Long-playing records, including microrecording and supermicrorecording;
Record players of various types;
An automobile-type record player;
Tefiphone, that is, a phonograph with an endless -loop tape.
There are six figures.
AVAILABLE: Library of Congress
Card 1/1

lj~k ~ (3 ))% - V- ) ~ ,&
AS I, IYEV, L.; PAKHOHOV, Yu.
Tape recorder with pushbutton control. Radio no.11:56-59 N '57.
(MIRA 10:10)
(Magnetic recorders and recording)

PAIROMOV, Tu.
A tube millivoltmetor. Radio no.12:60-62 D 154, (MYRA 8:1)
(Millivolteeter)

-----PARHOMOV. Yu. (Moskva)
Honemade clearance gwiges for measuring instruments. Radio no.3:30
Mr '57. (MLRA 10:5)
(Measuring instruments)

Instrut-aents iivr 53
U -
"The YIFI-4, A 'Areman's lnstrument," Yu. Pakhamov
Radio, No 4, pp 48-49
Describes a simple volt-nh&*mk which can be used to measure dc voltages from
0.2 to 390 v with an accuracy of -+ 31,, ac voltages with frequencieu frm 50
in
to 7,OW cps in the Same voltage range, and resistances from 10 ohW, to
0.1 megohm with an accuracy of V.

PAKH CKOV. Tu.
Amplifier operating on micro-currents. Radio no.10:40-.41 0'55.
(Amplifiers, Ilectron-tube) (Kw 9:1)

PAKHOHLT_.YuZly D4trlpjlc4; BOBOISVEKIY.A.G.. red.; TORONIN.I.P..
takhn.red.
LN~gnetic tape recorders manufactured abroad] Zsrnbezhn"
magnitofony. Moskva, Gos.energ.isd-vo, 1961.. 167 p. (HBO-
savela radloblblioteks, no;393) (MIRA 14:5)
(Magnetic recorders and recording)

STAROVOYI-J. N. G. - PAMCF(OV, YA. !.
Peat Industr7
Work organization of a mechanized peat enterprise. Mekh. trud. rab. 7 no. 2. 1953
9. Monthly List of Russian Accessions. Library of Congress, May -1953. Unclassified.

- -94PQKQy I-Tj~~ Nikolayevich; GORELIK, L.S., doktor skonom.nauk,
' ' PMT
otv.red.; A'rCT-'Y'.N.. red.: CKOPHATA, Te.D., takhred.
(Economic law of the planned proportional developzwnt of the
national economy; materials for the course "Political economy."]
Akonomichookii sakon planovernogo. proportsionallnogo razvitiia
narodnogo khozialstva; materialy po kursu. *Politichesksia ekonomiia.'
Kiev, Izd-vo Kievskogo univ.. 1959. 35 p. (MIRA 12:11)
(Economics)

KFA
IRF-3
v"
Ynta
lit -9.p ~119
AW
tw---, 304 wAj
ik
+-2N
A
W
2 4,T u
roM D-Ah
-cz
-4. A

18-3100 65692
SGV/136-59-1G-9/18
AUTHORS: Shokol, A.A., lakhomova, A.D. and Kozin, L.F-
TITLE: Production of- iii ~-i>u ri ty Metallic Thallium by the
Amalgamation Method
PERIODICAL :Tsvetny-ye metally, 1959, Nr 10, Pp 5'~'-57 kuSsll)
ABSTRACTi The object of the investigation described in the 1.resent
paper was to explore the possibilities of using the
amalgamation method for the preparatit)n of high jurity
thallium. The amalgam process, when usci for extracting
thallium from solutions obtained by decomposition of
thallium concentrates, makes it possible to SJJ~-Jlly the
existing technique, while the high jurity of the metal is
ensured by the application of anodic oxidation of the
obtained amalgams. In the experiments carried out by the
present authors, a 29'0 Cd amalgam was obtained by
cementation of a solution resultant from leaching and
industrial hydrated concentrate containing (g/1):
1.0 T1, 0.6 As and 50 H2SO4- The recovery of thallium
in the amalgam amounted to 90%, decreasing to 7090 when the
process was repeated. The thallium content in the amalgam
obtained after double cementation did not exceed 2% No
Card 1/10 satisfactory results were obtained when the acidity of the

65692
SOV/136-59- 1, - r.1 1~,
Production of High Purity Metallic Thallium by the Amalgamation
Method
cemented solution was reduced to 5 g/1 of free sullikuric
acid; high proportion of arsenic, iron and other
impurities present in the solution resulted in rapid
conversion of mercury to slag. This showed that cadmium
amalgam can be used for cementation of thallium from
purified solutions only. Better results were obtained
when solutions, resultant from decomposition of bichromate
concentrate, were used. In cementation of' thailium with
cadmium amalgams from solutions obtained by decomposition
of a solution of pure thailium bichromate, recoverv of
95 to 97% can be attained, the degree of utilization of
cadmium being 80%. The results of' experiments in w1--ich
the effect of the acidity of the solution on cementation
of thallium with a 5% Cd amalgam was studied (volume of-
the solution - 100 m1i duration of the treatment - 6 fir)
are reproduced in Table 1 under the following headings;
TI, Cd and H2SO4 content (g/1) in the starting solution;
quantity (g and %) of T1, transferred into the anialgam;
quantity (g) of Cd (a) spent on thallium and (b) gone into
Card 2/10 the solution; useful consumption (%') of cadmium;

65692
soV1 1 16-5()- 1(,- Ij/ I P,
Production of High Purity Metallic Thallium by tile Amalgamatiori
Method
application of the amalgam (first time, second time, etc).
It will be seen that, on average, 95% thallium was extracted
in the amalgam; when the free H,2S04 content in the solution
was reduced from 13.1 to 3-9 9/1, the degret- of'
utilization of cadmium increased from 57 to 93',v. III the
experiments in which tile amalgam was re-used five times,
the thallium content in the amalgam reached 75-, tale desree
of utilization of cadmium amounting to b5%. In t:ie ni~xt
series of experiments, decomi,osition of the obtainecl
amalgam (containing 2% TI; 0..5% Cd) solutions o1
various oxidizing agents, was studied; in each experiment
2 ml of the amalgam was treated with 10 ml o1 tile solution
and the results are reproduced in Table 2 under the
following headings: the oxidizing agent (5% Hg-,)(NO-)2.
0-1 M01 Fe2(SO4)3, ditto, 0.1 mol FeC13, ditto),
duration of the treatment,minutes; quantity (g) of Tl
and Cd found in the solution after cenjentationi tile
potential, E, (v) of tile amalgam (after cenjentation)
referred to normal hydrogen electrode. (In tile experiment
Card 3/10 marked with an asterisk, the amalgam was converted into

65692
Production of High Purity Metallic Thalixum by the
Method
paste.) All the investigated sut,stai- 'ce6, wit., itt-
exception of f erric chloride, secured I ul-I de~ owl '~5 I I OIL
of the amalgam; for practical reasons, it is ex,v-jient
to use for this purpose the iron sulphate "Cllutiori- i:le
anodic oxidation of the amalgam was carried out iij aj,
electrolyte containing bO g/l NH40H and 90 g1l Nh4CI,
pure mercury being used as the cathode. I'li e I- L- 11. 1 L 10 1
the electrolysis of 56.25 g of a 5% thallium amal,,:ain are
reproduced in Table 3 under the following liead-in~4s:
duration of the treatment, minutes; voltage, V;
current density, amp/dm2; the anode potentiai, E, (v) in
respect to normal hydrogen electrode. The chan,~e of the
anode potential with time was gradual; the electrol',sis
was terminated when a white deposit (thallium c:,lori-It-)
appeared on the anodc surface. The products of
electrolysis contained: thallium amalgam kanode) -
4-975% TI (corresponding to 99.5% of t1if- thallium cot-tent)
and 0.025% Cd; C.'IdIllium amalgam (cathode) - 0.1ti!, Cd aii(I
0.011% TI; electrolyte - less than 0.001%, TI ait,~
Card 4/10 0. 025% Cd. Thus, it was shown that practicalAy all

65692
SCV/l36-5V-IC--9/l6
Production of High Purity Metallic Thallium by the Amalganiatiori
Method
cadmium can be extracted from thallium amiilga::
electrolysis in an ammonia-chloride elvctrolyLe. T! I t!
flow sheet of the process used Lri tne 'Large-~micaii-
experiments on the extraction (31' thailium Irom I:ic!ij-ui-,aLe
concentrate is reproduced in Fig 1. The bicliromate
concentrate was obtained from the sultition iii-ter
decomposition of 5-7 kg of industrial hyUrated (-ake.
From the resultant solution, containing 1) ~~/l TI ajid
g/1 H2SO4, thallium was extracted by room
cementation with a 51'0 Cd amaigam; I kg 01 the
(re-used five times) was used for 10.5 1 of the
The typical results obtained are reproduced 1-11 1:0 ~t- 4
under the following headings: application t,i tll)t,
amalgam (first, second time etc); duration (ht) ,I t:it
cementation; proportion of TI (la of the iiiitial -nteilt)
remaining in the solution al t(.r ceweiitat.ioii, 1110, )1,
amalgam contained 8.440,L TI, 2.69,u Cd, lead, tizi, I
copper and other impurities. For the 1.rej.aratioyl oi !ixg-h
purity metal it is advisable to use a more c-)iicei-Lrat~d
Card 5/10 amalgftm- It' clectrolymis is Ilsed for t1ij, ;fill(),V 'ifIll It

65692
SOV/136-59-10-9/16
Production of High lurity Metallic Thailium by the Amalrza-q.at-r~
Method
an electrolyte is employed in which tile I Otential 'A
cadmium is more negativew a cadmium-free amalgaiii ivill
-.)e obtained; the more ,usitive metallic inquritie~, ivill
remain in the "primary" amalgram. Curves 1-lotted jig Fx~; 2
illustrate the relationshij- between potential of the
cadmium and thallium amalganis and the metal content
(at -%) in the electrolytes for the followinL: c,-Ist_-s:
I - cadmium amalgam in an electrolyte contairtill'y"
2 mol NH40H and I mol (NH4)2SU4; 2 - cadmitini aiiiai,~an. in
an electrolyte containing 0.5 mol NH40H and
1 mol (NH4)2SO4; I - thalliurr. amalgam in art clectrol~te
containing 0.5 mol NH40H and I mol (NIi4)2SU4. It wi-11 t)e
seen that increasing concentration ol ainmoiiia iii t,,(-
electrolyte, the potential of the cadmiun, atrialgam is
shifted towards the more positive values. ~ig 3 shol,;S
the polarization curves of anodic decomposit:ion ol:
I - an amalgam containing 7 at-~Q' thaliium in an
electrolyte containing 0.5 mol NH40H, I itiol (NH4)2SO4
and 0.01 mol T12SO4; 2 - an amalgain containing
Card 6/10 5 at-',& cadmiuni in an electrolyte containin_g ().5 mol "'40"1

65W
SOV/136-59-11-9/16
Production of High Purity Metallic Thallium b~ the Arnalgamatior.
Method
1 mol (NH4)2SO4, and 6.01 mol CdSO4; 3 - ar, ai,.a 1 . ain
containing 5 at-% cadmium in an electrolyte containingi
2 mol NH40H, I mol (NIW004, and ().01 mol CdSO4. Theso-
curves show that dissolution of cadm:ium tahos l,1eic(: i,,atiily
in the initial stages of the process; if) the
containing 2 mol NH40H, the polarization curve (A flik-
anodic decomposition of the cadmitim amalgam Is shilt-
towards the more negative values of the poteiitial.
Fig 4 shows the polarization curves of cathocli-c
deposition for the following cases: 1 - thalliun. on
mercury from an electrolyte containlilg U.:) 111 01 "NH4k)h'
1 mol (NH4)2SO4, and 0.1 mol T12SO4; 2 - ilia I I luni oll
amalgam containing 7 at-% thallium from ai: electrolNit, A
the same composition; 3 - thallium oi, amalgam Containing
40 at-% thallium from the same electrolyte; 4 - cadmium
on amalgam containing 40 at-% thallium from an
electrolyte containing 0.5 mol NH40H, 1 mol (NH4),,SU4,
and 0.1 mol CdSG4; 5 - cadmium on mercury from an
electrolyte containing 2 mol NHj,OH, 1 mol (N"4 I)2SCJ41 alld
0.1 mol CdSG4; 6 - cadmium on amaigam contaiiiing
Card 7/10 40 at-% thallium from the same electrolyte. It will be

65692
SOV/136-59-10-9/18
Production of High Purity Metallic ThalJium by the Amalgamation
Method
seen that in the case of the electrolyte containing
0-5 Mol NH4011, the shil"t of' the cadmium poteiitial in
relation to thallium is not suffic-iontly Jarge; tile
current density permissible in this electrolyte (stirred
at the rate of 60 rev/min) decreased from 1.2 to 0.5 amp/dm2
as the thallium concentratiozi in the amalgam iiicreased,
when an electrolyte coittaiiiing 2 mol NHIUH ipj used, the
shift of the potential is larger, which makes it possible
to use higher current density (1.2 amp/dm2). The
diluted thallium amalgam was concentrated by
electrolysis in which mercury cathode and animonia-sulphate
electrolyte (0.5 mol. NH40H, I mol (NH4)2SO4) were used,
the resultant amalgam contained 32.8% thallium.
5.6% cadmium and other impurities, the thallium content
in the electrolyte tieing (;.27 g/1. The results of the
potential measurements carried out during this operatiorl
are given in Table 5 under the following headings-.
quantity of electricity, amp-hr; cathode and anude
potentials (v) relative to normal hvdrogen electrode
Card 8/10 The impurities were removed frow the coiicentrated amalgam

65692
Sov/136-59-10-9/16
Production of High Purity Metallic Thallium by the Amalgamation
Method
by anodic polarization in an electrolyte cun-,isting oi
0.1 mol trilon B in 1.0 N solution of NaOH, at the current
density of 0.5 amp/dm2. The bulk of the impurities was
removed at room temperature until thallium ions appeared
in the electrolyte; the process was then continued for
3 to 4 hr at 60 to 70*C, the electrolyte being stirred at
the rate of 200 rev/mini the quantity of thailium passing
into the solution during this operation amounted to 10 to
20 g/l. The purified amalgam was then subjected to anodic.
dissolution carried out under the folloivinL% conditionst
cathode - platinum, electrolyte - 40 to 70 g/l TlCI04,
60 to 120 g/1 NaC1041 1%, N2H4.H2SO4, 0.04 to 0 15* sod~Jum
salt of carboxymethyl-cellulose, pH equal 2 - 3, speed
of stirrer - 60 rev/min, The most dense delosits were 2
obtained at the cathode current density of 0~3 to 0.6 ampAm
To reduce the quantity of mercury in the cathudic deposit,
hydroxylamine was added to the electrolyte to reduce the
dissolved oxygen which, by oxidizing mercury, promotes its
Card 9/10 transfer into the electrolyte. The process was carried

65692
So V/1 36-59-1(- 9/18
Production of High Purity Metallic Thallium by the Amalgainatiun
Method
till the thallium contolit In tht, 11111algaill Was PA-
80.3 9 of metallic thallium (equivalent to 95.551; yield)
was obtained in this manner, J'he results of' si)ectro-
graphic analysis (< 0.0001c,,. Cd, 0,0001~. Pb. o.. uuolo~ CU,
1.1o-5% Hg, iron, zinc, tin and aluminium not detected)
confirmed that high purity (99.9991/,.) thallium can be
prepared by the inetliod described. There are 4 figures,
5 tables and 7 reference5, 4 of' which are Soviet arid
3 German.
ASSOCIATION: Institut obshchey 1 neor-ganicheskoy khimii AN U~:,SR
(Institute of General arid Inorganic Chemistry, AS UkrSSR)
Card 10/10

PAKHOMOVA, A. I.
Discumsion on L.Shotter's article 'New method of reinforcing graft in
keratoplasty.0 Vest.oft. 32 no-5:41-42 S-0 '53. (MIJA 6:10)
1. Ukralnekly eksperimental'My institut glasnykh bolesney im. prof. V.P.
71latoTa. (Bye--Surgery) (Shotter, 1.)