SCIENTIFIC ABSTRACT POPOVICI, V. - POPOVKIN, B.A.

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• Collection: Scientific Abstracts
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• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 15, 2000
• Sequence Number: 10
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

H I
V., Veterinarian of 'lie "Pasteur" Ixistitul.-e for Veteri-
L U
nary Research and Biological Products (Institutul de Cercetari
Veterinare si Biopreparate "Pasteur").
"TIA-le International Symposium on Ornithosis of Greifswald.11
Bucharest, Revista de Zootehnie si Medicina Veterinara, Vol 13,
No 10, Octo 63, pp 69-71.
Abstract: Reviews the -proceedings of the international Symposium
on Urnithosis of 13-14 June 1963 helcl at Greifswald in -r"*as'u
Germany. Organized under the auspices of the German ',Hygiene
'Society, the Faculty of- Medlcine of" "Ernst-Moritz-Arndt" Uni-
versity of Greifswald, the"Fr. Loeffler" Institute of Riems
of the Gerai_~n Acpdemy of Aggricultural Sciences and the Inter-
na-.i6nal Association o-L' Agri cul tural Medicine-, the symiposi*~.,,m
considered the following: the epidemiology and virology of
ornithosis, ornithosis from the point of view of clinical workers,
and ornithosis as a professional disease.
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NANU, A.; NICHICI, A.; TTO-~7q~l, -Y~- -
The M.A.M.B.1 anodic and mechanical machine cutting with band.
Studii tehn Timisoara 10 no.2:377-389 Jl-D 163-
Experimental and theoretical studies on the anodic and mechanical
electroerosive flow productivity of the M.A.M.B.1 machina. 391-400

POPOVICI V dr Ing.
"-1 1
New graphic representation of heatu cycles using a
diagram p-i with rectilinear adiabatic lines.
Energetics Rim 12 no. 5-205--210 My 164.

SPITZER) A.; SCHWEIGERj A.; POFOVICIL V.
Volumet r4 C, determ-!naT;'or. of the phosphste Jlcn uping --,-
- ~ Z.
indicator chmmatable acid blue. Rev chimie Ylin p;tr 15
no.9;5'16 S '64. ~
1, The work was carz-1ed -,ut in the Regional Laboratory for
Pledielre Control, Tlmis~.ara.

Do~erirdnation !)f jr
au a- -
with soldiwm Act.~--i pbarm. Hun.g, 35 no.6-,252-2---,
1. Submitted February 26, !965.

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POPOVICI,-Victor, prof. (Iasi)
...I- -------
From the activities of the circles of mathematics and pAysics of
the sb~dents of professional schools at Iasi. Gaz mat B 13 T)o.l:
51-52 Ja 162.

Pf0FGV-"7,:!, Vladimllr in~
,9 r.; HKIIII-'11CII, -Ile-yandiru, ing. '~;ra;ova)
Out,3'.and-'Ln-- techni,::-il a--hievement3 af, the Electroputere Piant in
Elec"-rotehniaa 12 noj/2.~27-38 Ja-F '64.
1. Technical Director at the '17mlectroputere' Plant, Craiovs
k1for Popovici, Heinr4 ch).
-L

FOPOV;CI, Vladimir; STANCIU, Valeriu,-Ing*
The OFlectroputere* Works in,,WI,6~--vavian achievement of the
Rumanian People's Democracy. Electrotehnica 10 no&6:215-225
je 62.
1. Director tehnic (for Popovici). 2. Inginer sef (for Stsnciu).

I I . I Farm tx-inals. Honey Bees q-r-
;,bs jou:c : I Ref Zhur - Biol.., No 19, 1958, No 68198
Author : Popovici V.
Inat
Title : Noctarous Importcince of the Linden Tree and Its Spread in
the Forests of Ibmania
Orig Pub : ~*qpicultixra, 1957, No 19., 13-18
Abstract : The lindens in Rumania occupy 67,000 hectares, or 1 percent
of the total forest area. The per-hectare producitivity
of the linden depends on the development of its limbs, con-
ditionS of the soil and atuosphere, and elevation of the
locality. fmona the three varieties and several hybrids of
the linden., the white linden Tilia argontea is an especial-
ly nectarous one. In recent years., large linden plantations
are beinG established in Rumania., with the participation of
bookeepers. -- M.N. Zirmev.
Card 1/1

POPOVIC~I V.
Some conclu3ions dravin from the printing upon cortain varieties of offset
paper. p. 292.
f,'---'UjLOZA SI HIRTIE. (Asociatia Stiintifica a InEinerilor si Technicipni)-or
din Rorainia si 1--linisteral Induatriei Petrolului si Chiinie) Pucuresia., Rumania.
vol. 8. no. 9, Sept. 1959.
,,,ozitK
I. -1y List of East Euror,-~aan Accessions Vol. 9, ra. 2, Feb. 1969.
Uncl.

IOSIFOVICI,, V., ing.; POPOVIGI,V., ing-.
----------
Determining the molecular weight and polymeri2ation degree
of cellulose by the viscosimetric method, using the Stau-
dinger apparatus. Gel hirtuie 10 no.1+2128-133 Ap'61

POPOVICI', T.., ing.; MSTAKTIVESGUO 0.., ing.
laboratory research on-the production of chemical and mecha-
nical pulps from annual plants by the cold soda process. Cal
hirtie 11 no.72252-264 JP62.

NANU, A.; ~TPYQ~1101, V,; NICHICI, Al.; ACEWSUCU, N.
Determining the conditions of autc=,aLic control of --he ac--vsnc-e
in electroerosive discharge. Bul St si Tehn TJIM 9 no.2:419-
4110 Jl-D 164.

i;Ot"tjlj,lcil V.V.; VICTUP, C.
Additional rewwration of fie.;d triam colleetivisrs. 17-robleze
econ 17 no.5.32-45 My 164.
i
,
- - ~

PO FO VICI V. V.
-taDU7-7 an Naaca
1V
Colintry: Rumania
Jtcad;~mic- Dccgrecs: Engineer
Research Institute for the Cultivation of Corn (Inst-itutul
do Cercetari pentru Cultura. Porumbului)
S'Ouzee: Bucharest, Probleme Zootehnice si Veterinp-re, 1,',- 2-,j 19617
ni~ pp 11-18. 11
ta: "Organization of the Green Corn Conveyor for Bulls.
Co-authors:
0 U -0
BEPMEA. L- Engineer, Research Institute f r the Cultivati n of
Corn (Institutul de Cercetari pentru Cu tura Pori=`bului).
STRIMBU 7 1 .1 Engineer, Research Instituto for the Cultivation ofL
Corn (Institutul de Cercetari pentru Cultura Porumbului).
STAITESCU, I., Engineerg Research Institute for the Cultivetion
of Corn (Institutuil de Cercetari pentru Cultura ?orunalbului).
CHIRITA , N Engineer, Research Institute for the C-~:,Itivation
of Corn Unstitutul de Carcotari pent-ru Cultuz~a

72=-
CSIAUN Uj Ij,)'
A-M-to Deasm ftlnoor
ArIlUation:Rtsoarob Institute for the Cultivation of Corn (Inatitutul
do Coroatarl pentru Culture Forumbulul).
soureat Duaharomt 0 Problem ZootabnIns &I V*terinars, NO 6, 2961,
Data; *R. Ecomordo Irflals"? of the Valuation of Corn in the reading
of Kilk Covs.'
'I Inter, Rosssr4h lostibuto for the CultIVAIDA
tItu'uI do Carestarl pentru Culture forumbulul
CRISAN
aral-,&:1moor Research Institute fqr the Cultivation
0 Itu;U do Copostarl pontru, culture ibrmwlui).

PAPAHAk'jl,E. r-c--f.,- CIUML, M., dr., POPOITM, Z., dr.; CIIJR4"U, dr.
r m
h e 'ergency porta~-.avnl anastomosla. Med. intern. (Burmr.' 16
no.lOtl239-1244 0 164
1. IAICrare eVe:!furita Lin f-'Llinica a li-a do chl-ru--gie,
de adulti al R-a-'.OfIUILII `30 Def~embrifi` (diracU ~ pr-C. 1.'Dirai,
membru cores paider, w' al Aemdemlei RegublIcH F pulare Ftcjrnj-nf,).

5Th 1",3 C-OVIC, 1)
rho constitution of avinicarbatidt-s of ditanic ficljs.
.1-1.
jl,*~ lit Ili 4 [:,vilcll
(it aR-
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Brij fornmi a emvilmt. I -.I'.
C., A.

POPOVICIU, Gabriel, ing.
E.',o at"'ropnown tic brft~es. itev callinr for 11, no.2:10-2,109, 1126
F t'j 5.
1. D.T.V. Section, 1123 August" Plant.
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_tffqVICIIj, L.; CATANIA, Rozalia;
MANTA, I.; DUMA, D.; IAZAR, Tr.C.~ I
PIRIJUY Maria; SERBANP !"..
B-iochenical research on experimental allergic encephalomyelitis.
Pt.2. Fiziol. norm. pat. 11 no.3:237-242 My-Je 165.
1. Catedra de biochimic si Clinica de neiirologie, Institutul
medico-farmaceutic, Cluj.

DUM, D.; SERBAN, M.; POPOVICIU, L.; LAZARY Tr.; MAPES, V.; TARAINU, Al.
ifistochemi,ml rosearch ir, various muscular diseases. Stud.
cercet. neurol. 10 no.3:159-165 Je 165.

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POPOVICIU, T.
Achievements and tasks of the mathematics and physics sections.
P. 107
Vol. 4, no. 2, 1955
ANALELE
Bucuresti
SO: 146nthlv List of East European Accessions (EEAL), LC, Vol. 5, no. 12
December 1956

On the PreciBion of Uumerical Calculations by Interpolating With Newtonis
Polynomial -20
- P"-0%,-TLbqdq- Sur la pricision #.a cdnd-x-~
_qu olynomd-Newfon -Jumu
~~diifllnterpoktloWpar le p
iquidistantes. Acad. R. P. lRunshic. Fil. Cluj. Stud.
Cerc. ~ti. Ser. 1. 6 (1955), no. 3-4, 27-35. (Romanian.
Russian and French summaries)
In calculating the value of New-ton's polynomial.
M n 4V- 1) ... (.v-v+ 1)
V Z0
one uses the algorithm
y,,+I=Ah*-I(a)+ Y.. Y=O, 1, - - -, X:
Y0=0;YX+1~L(X)
Approximations used in the successive calculations result
in an accu mulation of error!; In the final value y.jl, The
aqthor develops a formula for the total error c, and tlwre-
by optains a bound on Jel, in terms of x and of the maxt-
mum absolute value of the succevsive errors. For discrete
values of x, by tenths from 0 to 1, tables of factors are
constnicted to facilitate the calculatio4s.
E. F. Beckenbach (Log Angeles, CaJiQ

POPO V I Q, U
)P~tionm -a
on Sam
V. lbmmk Sur qu
AMT-R7.T-Rom1ne. Fil. Cluj. She COM
__J..no. 3-4, 37-49, atomanian. Itumm
Ser.1 6.(!155
and'French summaries)
'Let V
denote the detenninant oU
8 x21 ... X141
-and lit
es i. 1 2.
V
X+k, x
Jn the first part of the present m, the author shows
-that If the functions li(s), i-0, a- 1, me Continu-
OUR, and satisfy 1V -AO for each set of m
xx
distinct points st, In the Interval [a, b], then
1, 2,
the general solution of the functional equatiori
orm
Ah x4o.h. - - ad%-Jj h-0, X, X+Xhecd,b], Is of the f
where the ej are arbitrary
constants, (See the following review.)
ietD( Zip xmw; F) denote the deteminant of
GUJ ~Io - - Ym+1
11Z values F(xi, Vf), i, m+ 1. A function of the form

4~E
m

ma

0
16(1) PHASE I BOOK UPWrTATION SOV12660
V$QsQYUZnYY "tGeAticftG*kiy 3'yod. 3rd. Moscow. 1956

TMdy. t. 41 Xratkoye 3oder-hantye 3*ktAlonnykh dokladov. Doklady
inQStrw%nykh uch6nykh (Transactions or the 3rd All-Unton RAthe,ca-
tIc&I Conference In Moscow. vot. 4: summ4ry or Sectional Report&.
Reports of Foreign Scientists) Moscow, Xzd-vo AN SSSR, 1959.
247 P. 2.200 copies printed.
Sponsoring Agency: Alcademlya nauk SSSM. Katematicheskly institut. 7-1

Todh. 5d.t. G.M. ShevchLnko; Iditortal Board. A.A. Abramov, V.0.
BoltyanskLY, A.M, Vaall'yevo B.V. Medvedev, A.D. Myshkls, S.M.
Ulkol-skly ,(Romp. 9d.), A.0. Postnikovs Yu. V. Prokhorov, K.A.
Rybn3kov# P. L. Ultyanov, V.A. Utiponskty, M.G. Chatayev, 0. Ye.
Shilov. and A.t. Shirshov.
PURPM: This bo~ok to Intended for mathematicians and physicists.
COVWLAGZ.- The book to Voluise rV of the Transactions or the Third All-
UnIon Mathematical Conferenca~ held In June-and July 1956. - Tme
book In Parts. The first Part contains sun-
series or the Paper* $)resented by Soviet scientists at the Can-
forenc* that were not Inc ludod In the first two volumes. The
second Part cQntains the text or reports submitted to the editor
by non-Soviet scientists. In those case* when the non-Sovi-t sci-
ontlot did not submit a copy or his Paper to the editor, tne title
Of the paper is cited and, If the paper was prlnted -r. A prvloux
voluss~ reference Is made to the appropriate volume. The Papers.
both Soviet and n0n-SoViat. cover various topics In number theory,
algebra, dirrerential and Integral equations, function theory,
functional analysis, probability theory, topology, =tnemixticsa
Probless of mechanics and physics, computational. mathcmatics,
uAtheastleal logic and the foundations or math*,~tics, and the
blatory of aut
Fo v (Rumania). Convex functions or higher orders
-
8
iwwtft&l term In certain approximation forwilat or
ansayste 164
T2S!Sh-A-JL-(?u6OGlavW. On the s.7mpt.tIC behavior of a a=
'
Or
a trigonometric sgrjeg of sines In the neighborhood of .
sero 167
TrIcoul. ?.a. Utely). On the thsOrY Of ccnflUent hypergao.
Metric functLona M
Fewer- J- (Francs). On the theory or the mpproximst.
. of
runctIonas development of the theory and problems
16S
2"0 &O-k~n4 (Chinese PG*Ple's Republic). Harmonic analysis
In cl"91c&l. field* IT2
(Bulgaria). On certain classes of Univalent
Vanctionm
ITS
Card 26/34

POPOVICIU., Tiberiu, prof.
On the remainder in some linear formulas of the approximation of
the analysis. Studii cer mat 10 no.2;337-389 159.
(EEAI 10:9/10)
1. Membru corespondent al Academiei R.P.R., redactor responsabil,
"Studii si cercetari de matematica" (Filiala CluJ).
(Mathematics) (Functions) (Approximate computation)

POPOVICIU, Tiberiu, prof.(Cluj)
Divi(fed and derived differences. Studii cerc mat Cluj ll no.1,
119-145 '60. (MI 10-9)
1. Membru. corespondent al Academiei R.F.R.; Comitetul de redactia
'Studii si cercetari de matematica" redactor responsabil.
(DIfference equations) (Ap roximate computation)
(Vector analysM

POPOVICIU, Tiberiul, prof.
15 years sine the liberation of our country. Studii cerc mat Cluj 10
no-1:7-15 '59- (EEA1 10:6)
1. Academia Republicii Populare Romine, mumb-u corespondent;
Comitetul de redactie, Studii si cercetari de matematica (Filiala
Cluj, Institutul do calcul), redactor responsabil.
(Rumania--History) (Rumania--Mathematics)
RUMAIIIA
SIRBU, Z., Dr, and POPOVICI, V.0 Veterinarian, of the "Pasteur"
Institute for Veterinary Research and Biological Products (Ins-
titutul de Cercetari Veterinare si Biopreparate "Pasteur").
"Cases of Bovine Lymphadenosis.86
Bucharest, Revista de ZOOtehnie si Pledicina Veterinara, Vol 13,
No 7, Jul 6T, -PP 76-81.
Abstract [Authors' English summary modified]: Describes 5
cases Of lymphadenosis in cattle. Two different MOrUhO_
logical pictures were observed: either hyperplasia oi the
spleen and lymphatic gland lymphoid tissue, or hyperplasia
of the lymphoid tissue and lymphoid metaplasia of the mesen-
chymatose tissue Of other organs,acCompanied in some cases by
a Proliferating reaction of the glands and the spleen. Con-
tains 7 figures and 10 references, of which 8 Western.
17

Rw,,,qq;~Oloutivatua Vvviti .- Focldc-rs -
. Abs Jour : Ref Zhur Biol., Plo 18, 1953, 82377
~Yaqs, fertilizor if increased thb C coil.te-..t bY 5VP.
Fertilizer P clid uot increate tLe C coute--.t.
9
14
Card 2/2

TXCERPAT M-MICA Sec.12 Vol.11/10 Ophthalmology OCt57
^&VJrcr_tf_ V.- _7
1574. P2P0V _JU_Y_ * Arsurile oculare ql tratamentul lor actual cu o contribuoe
- T _ Eye burns and their present
personall1a tratamentul conservativ.
treatment (personal ~ontrlbutio'n) OPTALMOLOGIA(Bucureqti)
1956, 1/1 (86-89)
It was observed that injections of procaine HCl carried out from the start peri-
corneally, subconjunctivally and into the cul-de-sac, can replace all treatments.
The effectiveness oi the Injections is due to the following facts: by suppressing the
pain and the neurotrophic reflex, the inflammatory process and corneal disturb-

14 744
CON re
ances are prevented, cure being produced in a short time. Injections of 0.5- IS
should be made e'very day. In severe cases. excision of the necrotic tissue with
grafts of buccal mucosa and non7perforating keratoplaaty are indicated.
Puscariu - Buchardst

NU~TAT4., Leonard; DANULESCU, Irina; POPOVICI, Veronica
I m6xim= flofi of the rivers f;~; ~be so~uthernpart of Rumania in I"*..
fbrviation conditions. Studii hidrol 3:3-14 162.
:!~q
I

GAJZAGO, Ianslo; POPOVICS, Ivanne
Forperimente-for measuring with therzistor-the surface temperature
of various road pavements. Idojaras 64 no.3-3175-177 My-Je 161.
1

I , -
- -., 't~.. r-._, , .~ , ` ~., _ ~ ~~;"- __ 7 ~ .-: . - -. -
GARAGO, Laszlo; POPOVICS, Ivanne
Experiments for the determination of areas of heat sensitiveness.
Idojaras 64 no.3tl7O-l74 ?1y-Je 160. (EEAI 10i1)
(Atmospheric temperature)

rorNIC04) 9
Ponovics, S. ; Ujbelyi? J. " The Results of Research on Cezrant in 1952! P. 315
R-Ditoan-vair. Vol. 5, No- 10, October, 1953, Blidapest)
East European Vol. 3, No. 3 3.954
50; Month List ofA444WAccessions~jibrary..of Congress, March __Jjjj, Uncl.

-,77

71 Desigit prablems cif-concrefe mixtures (fit L
/
- Ter
S. Popovics: '(Aek Ilnica Acaffemiac Scienti-
1111114 1 IIIII.-M sceic -VaL I 1, 1955. No, 1 -1 85 n4
7 PP'
7-
-
.
5 figs.)
A very 51111PIC forlimila, the remilb of which closel
,i. tipproxinrhe-actual valilues, has been ~ elaborated;. for
Witter when-ming
Danube sandy-gravel. Art Jtidex.tnetlj(xl.ejisujhjg the
specified consistencies Is: tr
eated theoretically and Proof
is fntuLsUd of the exWence, of parabolic and hyperbolic
relationships between the index- of consbiency and the
Wnter-cesuent ratio when using the usual Ificalm of
'
Inv, The
_.L
composition
of the,concrete inix
and the grade of cenwit requited for obtainhw. the
'
speciffed
citnerete sirength at a ininimunt'6st and given
c0tisisiency can be obkaftind Uy nit appro-diuating nieth-

01 nintiou
t tit, calc This: also proves that. cemenbi, of
lower standard strength have their particular fields of

-0.

MMW~-

-----------------
A /0, fl-.-)
HUNGARY/Cheraical Technology. Chemical Products and Their 1-9
Application SilicateG. G'Lasa. CerardcB. Binders.
Abs Jour -Referat Zhur 12iiniya, No 4, 1957, 12685
Author :?opoviEL�=O-T
Title Problems Pertaining to Computation of the Composition of
Concrete
Orig Pub Madatok a betontervezes kor6bol. 14-agyar tud. akad. 14usz
tud. oszt. kozl.,.i955, 15, INO i-41 261-277 (Hungarian)
Abstract
'Card 1/2
Analyzed is the intLrrelationship betiveen water:ceraent
ratio, consistency, strength and composition of concrete.
A formla is provided for the deterLaLnation of water:ce-
zlent ratio for concrete of rigid and plastic consistency:
(W,*Lter:Came1it) Pigid (60/c) L Of + d) / ioo + 1.401
4 0.10
(Water:Ceraent)P2.astic 1-20 (Water.Cement)Rigid
132

POPOVIQ5,-,S.; UJHELII, J.
POPOVICS, S.; UJHELYI, J. Methods of investigating the solidity of concrete. T). 336.
Vol. 8, No. 9, Sept. 1956.
EPITOANY,IG
TECHNOLOGY
Budapest, Hungary
So: East Euronean Accession, Vol. 6, No. 2, Feb. 1957

PopmcsbE GUB=, Maria
Biometebrological research in Poland. Idojaras 67 no.34.172-173
Kv-J'e 163.

. i
PbP,ovf,GSn GUBOLA Maria
Daily variations of equivalent temperature in Budapest. Idojaras
67 no.4:242,).43 Ji-Ag '63o

POPOVICSIFE GUBOUL. Maria
%~-~f.-,.- _
Sultry weather conditions in Budapest. Orsz meteor int besz tud kut
26:268-278 162(publ.,63).

Ki m g a r n Y,,~;
ljolar~s 68 no.3 -S' Ja---

GAJUGO, Laszlo; EOPOVICSM.GUBOLA, Maria
Formation of the cooling values during the daily ho in
the summer. Cras meteor int beBz tud kut 25:286-28i
161 (*bl.162).
1.

GAJZAGO, Laszlo; POPOVICS14E G4MOLA, Maria
An experiment for the establishment of temperature sensation
ranges. Orsz meteor int *ss tud kut 25:28&290 161 (publ.162).

GAJZAGO, Laszlo; POPqgq=-AUEOIA., Maria
Biometeorological data on Heviz. Cras meteor int beoz tud
kut 25:373 161 (publ.162).

WAJA, Milutin; POPOVIE, Sreten
A case of echinococcosis of the spleen in a 12-year old girl.
Med. pregl., Novi Bad 8 no.4;246-249 1955.
1. Decja hirurska klinika Medicinskog fakultets, Beograd.
Upravnik: prof. dr. Dimitrije JovcIc.
(BOHINDCOCCOSIS,
spleen in child, surg., splenectomy (Ser))
(SPLM, die.
schinococcosis, surg.. splenectomy in child (Ser))
.. .... ....
25

POPOVIN V S - KORNEV., A.M.
-.9 -
Efficient methods of designing apparatus for deep prospecting
drilling for oil and gas. Razved. i okh. nedr 28 no-9:45-48
S 162. (MIRA 15:9)
1. Ministerstvo geologii i okhrany nedr SSSR (for Popovin).
2. Mookavskiy institut neftekhimicheskoy i gazovoy
promyshlennosti im. akad.Gubkina (for Kornev).
I I (Boring machinery)

POFOVIN, V.S.; APANOVICH, Yu.G.
Drilling the Aralsor well. Razved. i okh. nedr 29 no.5:56
My 163 - (MM 16 -.7)
1. Gosudarstvennyy geologicheskiy komitet SSSR (for Popovin).
2. lqachallnik Aralsorskoy ekspeditsii (for Apanavich).
(Caspian lowland-Boring)

POPOVIN, V.V.
ProspectIng for 00. pocla In L~le ~,5rr!.genvus 391-nents Uf T,;,e
Devonian in the southwestern SeCtor of 1,;Le 'Udnmrf, A.S.S.R.
Neftegaz. geol, i geofiz. n0.900-32 164.
edavatellskly geL)Icgo:---ZVadO,;hny:y
VseSQYLIZTIYN' nauchrc,,las'
neft.yancy inscititt, Mc-sk-va.

Tom
POPOVINJO V.V.
Distribution of the Devonian terrigenous layer in the north-
eastern slope of.the Tatar Arch and adjacent regions, Geol.
nefti i gaza 7.no".2sl5_2l F 163. (MIRA 16:2)
1. Voesoyuznyy nauchno-isaledovateliskiy geologorazvedochnyy
neftyanoy institut, Moskva
(Tatar A.S.S:R.--Petroleum geoloRy)
(Tatar A.S.S.R..;o_Gasf Natural-Geology)

NISHURIS, I., inzli.; POPCIVEN, A., akotlomi~t
.
Polymers In conBtruction. Zhil. atroi. 164.-
(,',-"RA IS.-4)

PIGULEVSKIY, Sergey Viktorovich; POFOVKIN, Aleksandr Petrovich;
TOVSTOLUZHSKIYO N.I., inzh., retsenzent; GONCHAROV, A.F.,
inzh., retsenzent; KD-MLI, L.S., red.izd-va; GRECHISFICIEVA,
V.I., tekhn. red.
[Construction and maintenance of 750 mm-gauge logging rail-
roads] Ustroistvo i soderzhanie lesovoznykh zhelezurkh dorog
kolei 750 mm. Moskva, Goslesbumizdat, 1963. 224 P.
(MIRA 17:3)

POFOVK-N, B.A.; STI-VMOV, Yu.P. [dece-aaedi
X-ray study of basic lead ,,~-~Ienates and selsni,.es. Zhl,=. neorg.
khim~ 10 no.'(;1630'-1641 il '65. (1,CRA l8t8)

T 6 2 46 1~
---- LTJ E(,-
'Wk-'_"X_PG0il659 SOURCE CODE: UR/00'20/66/167/003/0604/0606
CC
A
AUTHOR: Turoval N. Ya.; PopoVdn, B. A.; Novoselova, A.
ORG: Moscow State University im. M. V. Lomonosov (MoskovsIdy gosudarstvennyy
universitet)
TITLE: X-ray analysis of methylates of alkali-earth metalsq 5 C,-)
SOURCE: AN SSSR. Doklady, v. 167, no. 3, 1966, 604-606
ITOPIC TAGS: X ray analysis, beryllium, m -agnes ium- calIcium, strontium, barium
ABSTRACT: The authors made an x-ray analysis of methylates of Be, Mg, Ca, Sr, and Ba
in the form of powder products obtained upon desolvation of Me (0C113)2 4 CH 30H (Me= Mig,
Ba) or in the form of unsolvated coholates. The x-ray patterns of the powder were obtained
on Fe-K-radiation in an RKD-57Camera.loThe parameters were refined on the basis of the
powder patterns recorded on CuKa-radiation with the use of a monochromatic illuminator.
The specimens of the alcholates for photographing in the RKD camera were prepared by filling
capillary tubes made of pyrex glass in a dry chamber in an argon atmosphere. Suspensions
of powders in absolute liquid petrolatum were used for recording in the monochromator. The
1/3 UDC: 546.4/.5+548.736

L 38929-66
ACC NR: AP6011659 D
density was determined pycnometrically and by the suspension method in mixtures of absolute i
benzene with CC14 or CHBr3 with preliminary pressing of the powders in a vacuum. Both
methods yielded results which agreed well. The quality of the x-ray patterns of the alkali-
earth methylates somewhat deteriorates upon changing from strontium to calcium, only diffus6
rings were present on the powder x-ray patterns of Mg (OCH3) ? ;ed
,, and Be (OCH3) 2 represent
a completely x-ray amorphous substance. The x-ray patterns of Ca (OCH3)2, Sr (OCH3)2,
Ba (OCH3) 2 were fully identified in the hexagonal cells. On the basis of the coincidence of
the indexes of the lines of the powder x-ray patterns of Ca (OH)2 and of the methylates, their
sequence, and the relative intensity, the authors conclude that all alkali-earth methylates
are isostructural to calcium hydroxide and have the same space group Plml (C5m). These
methylates apparently have a laminar structure with the following alternation (in the direction
of the c -axis) of atoms: I (CH3)OmeO(Cfl3) (CH3)OMe.... each of these atoms forms a
layer perpendicular to the c-axis. This structure of the methylates is confirmed by the
difference of the parameters of c in hexagonal cells of Ca (OCR and Ca (01-1)
A 2
to 3.44 A, which is very close to the difference between the heights of the cells of
and LiOH (3.55 A). The constancy of the heights of the unit cells which was observed upon
transition from Ca (OCH3)2 to Ba (OCH3)2 is attributed to the rather sharp increase of the
degree of ionization of the metal-oxygen bond from the former to the latter compensating the t
increase of the radius of the metal. The same constancy of heights is-observed in the meth-
ylates of lithium and sodium and for Na.(OCH3)0.66 (OH)0.33 and KOCH3. Orig. art t. has:
2/3

POFOVKIN, B.A.; CHRM[IS121OV., V.P.; SDIMOV, Ta.P. [deceased]
"tal structure and vibrational spectrum of lead aelenite' ZIxur.
strukt.khim. 4 no.1:1+3-49 Ja-F t63. (~~ 16z2)
1, Moskovskiy gosudarstvemyy universitet imeni H.V. lomonosova.
(Lead selenite orystalo-Absorption spectra)

PPPOVKIN, B.A.; CHXREM]310V# V.P.; SIMANOV, Yu.P. [deceased]
Crystal structure and vibrational spectrum of lead selenite.
Mxur.strukt.khim. 4 no.1:43-49 Ja-~? 163. (MIU 16t2)
1. Roakovsk gosudaratwennyy universitet imeni M*T* Lmonosova*
IfLead oelenite crystals-Absorption spectra)

POPOVKIN, B.A.; SIMANOV, Yu.F.
t lp-r4 examimiLtion of tvo Modifications of lead selenate. ~kur.raorg,k-Mm.
7 no.7:1743-a746 Jl 162. ~I?IU 16,3)
(Lead selenate) AX-ray'erys*logra'jiy)

LOF2.VKLN,_~.A.; ODIN, I.N.; NOVOSELOVA, A.V.
Lead oxide - lead selenide system. Mur.neorg.khim. 8 no.5:
1224-1227 My 163. (MIRA 16:5)
1. Moskovskiy gosudarstvennyy universitet imeni Lomonosova.
(Lead oxides) (Lead selenides)

, P~A.; TANANAYEVA., 0.1.; I#DVOSEWVA, A.V.
ZIIOMANOVIP V.P.- J~q
Some properties of lead selenite and oxyselenites. Zhur,neorg,
khim. 7 no-12. -2751 D 162. (MIRA 16:2)
0 -2746
1. Moskovskiy gosudarstvennyy- universitet imeni Iomonosova.
(Lead selegte)

POPOVKIII, B.A.; NOVOSELOVA, A.V.
lead selenite - lead oxide system. Dokl. All SSSR 139 no.1:117-119
ji 161. (141W, 14: 7)
1. Moskovskiy gosudarstvemyy universitet im. M.V. Lomonosova.
2.. Cbisn-korrespondent AN SSSR (for Novoselova).
.(Uad selenite) (Lead oxide)

AUTHORS: _Tqmovkin,_~.
AS USSR
TITLE: Study of
PERIODICAL: Akademiya
S~482
020/61/139/001/014/018
B103/B226
A. and Novoselova, A. V., Corresponding Member
the aystom lead selen1te - lead oxide
nauk SSSR. Doklady, v. 139, no. 1, 1961, 117 - 1'6
TEXTt The authorn studied the system PbSeO 3 - PbO by thermal and X-ray
phase analyses with a view to precisely defining composition and limits of
existence of lead oxyselenites. The fact has been proved earlier (B. A.
Popovkin et al. Ref. 1: DAN, 129, No. 4, 809 (1959)), that only lead selenite
is produced by the interaction between lead selenide and oxygen at 500-6000C.
The authors prepared mixtures of analytical-grade productstAga-(ch, d, a)
consisting of yellow lead oxide and lead selenite, the latter of which has
been produced of analytical-grade selenious acid and lead nitrate.. For
conducting the thermal analysis, carefully pulverized and mixed samples
were prepared by annealing in evacuated quartz ampoules. Equilibrium
mixtures with less than 70 mole % PbO required a 20-hr annealing at 560-57dc,
Card 1/6

25482
S/020/61/1139/001/014/018
Study of the system lead selenite ... B103/B226
those with a higher PbO content - 40 hr at 630-650 0C. ThenK-52 (PK-52)
pyrometer with platinum-platinum rhodium thermocouples by N. S. Kurnakov
served for the differential thermal analysis. A120 was taken as a standard.
Weighed portions of 0.8 g were heated in platinum cLcibles. Average
heating rate was 10-120 C/min (in individual cases 5-60C/min); heating curves
were recorded. X-ray diagrams were recorded by the powder method. Fe-K
radiation inPkARKD) cameras, or, at high temperatures, the IIYHMVdM"(Unikam)
camera served for the purpose. Capillaries of "Pyrex" glass contained the
substance. The intensity of the lines was visually e7aluated according to a
5-stage scale. Fig. 1 shows the phase diagram of the PbSe03
I - PbO system;
Fig. 2 the results of X-ray phase analysis. The melting points of PbSeO 3
at 6ao0C and of PbO at 885 OC were determined. The presence of oxyselenite:
A) 2 PbO-PbSeO 39 and B) 4 PbO*PbSeO3 was proved in the system (in accordance
with Ref. 1). A) melts with decomposing at 7550C: 2PbO-PbSeO 3< "Pmelt
+ 4PbO-PbSeO 3, and with lead selenite forms a eutectic at 6050C and
0~~ .0
33-3 mole 11~ PbO. B) melts congruently at 805 C and with PbO forms a eutectic
Card 2/6

25482
5/020/61/139/001/014/018
Study of the system lead selenite ... B103/B226
(8000C, 63.3 mole % PbO). In addition to effects unambiguously belonging
to decomposition or to melting of the phases mentioned, others were recorded
in thermal analysis that cannot clearly be interpreted: between 45 and 63
mole % PbO when heating with 5-6 0C/min, endothermic effects (625, 650, and
7100C) became visible. When heating with 10-12 0C/min, these effects did
not appear on the curves or were only indicated by small breaks. With slow
heating, the temperatures of the final melting of mixtures with 55 and
60 mole % PbO decrease from 750 and 755 0C to 7300C. The eutectic effect
(6050C) in each case appears independently of the heating rate. According
to the authors' assumption, these unclear effects can be exerted by the
formation and conversions of the unstable oxyselenite PbSeO 3' PbO. Mixtures
with 5 to 20 mole % PbO showed a reversible endothermic effect at 625 0 C
being absent in the thermograms of pure lead selenite. The Debye powder
pattern of the sample with 95 mole % PbSeO and 5 % PbO annealed at 640 0C
showed some linss neither belonging to PbSL 3 nor to 2 PbO*PbSeO 3' The
authors assume that this effect is related to the reversible polymorphous
Card 3/6

25482
S/020/61/139/001/014/018
Study of the system lead selenite ... B103/B226
conversion of lead selenite which is stablized by 2PbO-PbSeO Furthermore,
3'
this effect may be due to melting the eutectic of the PbSeO 3' PbO compound
with lead selenite assumed by the authors. The effects 275 � 100 and
370 '+ 100C which are not always reproducible appear in mixtures with
25-75 mole %. They are independent of both the formation and decomposition
of new crystalline phases; they possibly belong, however, to second-order
conversions of 2PbO-PbSeO 3' The structure of the oxyselenites mentioned
is identical with that of the crystalline phases being proved earlier (Ref.1)
in the oxidation products of lead selenide. A) crystallizes in the
tetragonal lattice with the parameters of the body-centered cell a = 3.92 kX'
c = 5-37 kX; B) crystallizes in rhombic lattices with the parampters of the
body-centered cell a = 3.92 kX, b = 3.73 kX, and c = 5.72 kX. There are
2 figures and 7 references: 4 Soviet-bloc and 3 non-Soviet-bloc. The two
references to English-language publications read as follows: F. N. Pollard
et al. (Ref. 4: Ann. Chem. Acta, 20, 26 (1959)); H. Lipson, A. Yi'ilson,
Ref. 7: J. Sci. Inst. 18, 144 (1955)).
Card 4/16

-:;4 I~Lz

pin
25482

* S/02q/61/139/001/014/0~8
Stud~y of the.s
y stem le'ad selenite... B100226

ASSOCIATION: Moskovskiy gosudarstvennyy universitet im. M. V. Lomonos6va"
&
(Moscow State University
imeni M.
V. Lomonosov)
.
SUBMITTED: April .6~ 1961
Legend to Fig. j- System-PbSeO PbO.
heating rate 10-120C/min,*(6)~ the same
0
5-6 C/min. Abs
cissae-- mole 700
600
so

300
200
-5

Pbse
MOA

'C'ard -5/6

2-1 01D t DWI, I j 3 to, 12 7 S 20620
S/06 60/005/005/009/021
/5100 11-o~ ILIS-4 A051YA029
AUTHORSa Novoselova, A.V.9 Corresponding Member of the USSR Academy of
Sciences, Pashinking A.S.j Candidate of Chemical So-'encee,
Popovkin, B.A.
TITLEt On the Production of Particularly Pure Selenium and Tellurium
PERIODICALs Zhurnal Vsesoyuznogo Khimicheekogo Ob9hohestva, im. D.I.
Mendeleyeva, 1960, No. 5, Vol- 59 Pp. 5157-562
TEXTs Selenixim, tolltxrium and also Bslenideek and tellurides of certain me-
tals are used in the produetion of seminonduot,,raq reotifiere, valve-type
photocells and sensit-1ve eleetzo-phatograph-le. layers, EI t~', Pu.-s selenium
is expected to be used in the If"Itlare in the synthesis of othe_r 5elsaides fo--
luminophors, photo-resistozs, crystal eountere., etv. The semiconduolvor pr~)-
perties of tellurium and tellurides are the subject of intensive studies.
in the present article the authors daeoribe and comment on the -.arioua
methods developed for the production of pare uelenllum and tellurium from
Card 1/11

20620
S/063/60/005/005/009/021
A051/A029
On the Production of Particularly Pure-Selenium and Tellurium
commercial products. It is mentioned that t-he technology of selenium and
tellurium production from raw materials and theIr primary purifica'~--Ion
methods have been desaribed in detail fn Soviet literatare (Ref.1-4). The
main raw material for selenium production are the by-produotg of non-ferrous
metallurgy plants and of the sulfuric- acid production, Commercial selenium
contains usually up to 98-5 ~ of the baeic substan~,,e and admixtures or
tellurium, sulfur, oxygen, arsenic, phosphorugi chlozine, sil-loon, sodium,
copper, silver, magnesium, cadmium. mere-ury, aluminum, ling leadj antimony,
bismuth, iron and n 'ickel. Penin (i8f.5) studied the effects of admixtures
on the electrical properties of selenium rectifiers. It was found that the
admixtures of many metals introduced Ln the form of sel6nides in relatively
low concentrations (0.1-0.01 at~ %) Qauea a weakeiing of the rectifying
action of the rectifiers. Copper and niokel were found to oauae a decrease
of the rectification coefficient. Abdullaye-v and Shapiro (Ref-7, 8) found
that the introduction of hali4"ea (UP to 0-15%) and thallium improve the
Card 2/11

2062p
S/063 601/00;/005/009/021
A051)/AG29
,Ujar'y 'Dare $slenivz ar-.11 Tell.~X:~-J.M-
On the Product4on of Pa~-ti,,
rectification oharaoteristios. Other Soviet a-athors, rIr_-,%h ad Putseyko
(Ref.9), Kozlovskiy (Ref.10), Luklyano-r (Ref. 11) and Naaledwr (Ref. 12) deal'.
with the effects of admixtures on -~ha photc~eenaitl,,rltrof sei,~nlum photocells.
The effects of non-metallio and metal-lio admixtares on tha tonj-_,0ti-rity of
selenium were investigated in Ref.13-15- Poreign admirt'ares J'.n selenium
were found to affect the rate of 0:ryetallization of ihe latt6r. Alkaline
metals, halogens tellurium and t1hallium.. :'.razesse the :7a~a rof
tion (Ref.16, 17~- The -r,~Iatllity ~,I' aeleni-,)m, .119 -aved In its purifioati*n
and in the pir-ific-,ation of Its -rmpo,"de (peroxidee, hal".de.1). Other faz,-
tore used in thie 6o=6~-tiorA axe the h~gL r~f se',snious acid, ease
of reduction of ite c-rzpounde t~,-Y elementary eelanlum~ tha abilLty of sele-
nium, contrary to '~oaliuriurq "Zo f-.,rm varfca2i add-_'tlon wht,lh det,-om_
pose unde.- aertain cor_V.ticr%a Zlo:7ming plire Other meth-do are con-
-a -1 4" : e C-j
nected with th6 ~xldatlo2% -f j~ommeroial aaleni-er, p, _4_.L-,ati n of th b-
tained pe_-Gxtdi, aad re-I'Llotion. tz-, The rxidation of con,
Marcial sellen-lum " t"! pazox!.dt -:1-th ~:oi!98qu4nt 3ti*:~!Imat~..:.-a wag rsoommanded by
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S/063/60/005/005/009/021
A07II/AO29
On the of Part4_--,uI&7].Y FlIZ1, S,!~' 6MI-IJA. at'd
Lobanov and Tabunin (Ref. 20~ 22). In Ref. 2-7 Aleksaye-7 ;~alpnrta thal, by a
single dileti'llation of saleniar. per~,xide, :~Dntaining 106 of P_dmixturea at
4000C a product oan 'Loa obtained oontaiikrg admixtizre5~ -af iron 0.000.11%P
nickel 0.00003%v nopper 0.0002%.. r!'L Relenium percxide from
admixtures of heavy metals ~s oarr~ed olit by p~~eairltatlo_n of these from the
solutions of seleniou, aoild in -the form -f seler-lites. Th.'5 wethod is aleo
recommended for puriflloatlion frim, tellixrium, the paroxide 'it vhlch f9 very
k i . J. ggeeted selen-toas a.-id
poorly soluble in water IRef.24~- 1"' Je su
should be purified by using ion-exc-hange re-s-1n;2 inatead r-f the me thod re-
commended in Ref-25-26; whioh invol-4-es the ~cprscipitat-.Lon of admixtures
with aluminum hydroxide or iran hydrox4.de, leadIng to a significanto drop in
the admixture content of arsenia, lead-9 titenium, manganese and
silvez, but cau5ing a certain pollutj.,:~,u by and By distilling
a sollation of selenious acid at 33,00C a separat.on of selenium peroxide froz
admixtures of tellurium., Itror., &I-cminlim, magnesium, eilicon, mercury and
arsenic can be ao~oomplishad af ter ox.J"dizing it to 6, pentavalent state (Ref.21).
Card 4/11

20620
V06 r':'G/")0-/.'0V009/021
O;z
A
.'
On the Prodmtion cf Partioularly Pnre, Selloni-,m iad T81111r,',ii-x,
One of the aimplogt msthnd3 for redli-In-3 the per::rile ia
the redu-,tiori wilv*b aultur Otner re.-
3A'Id .~ to- d6-
ducing agents a5ed are fozml,-, af~"J, aMZ,".-n~dM x
rivati7es. The tenden:,Y cf saler..Lwrl t-:~ Addft!~-7;. --,.3 'aged in P.-C'-
ducing pu:-,e selenium. C(~mmtr~,ial- eelan!Aim It ut-~' ins of riyan"deq
su3.fidA- or eulf-i*VA ?,he-,A, 6~-id With
the g raa~ti'-Ds tak!".ke Se KC'N
f C11 OW4 ~-j
S,~ -4 X
Se + H'So S'~ SO H,C,
Pure selenium 'Le tv-hen by --eqlaltant --o-
lut-lomp, The sulfite-.;Y~!"-- fc: th'~ -vz~Z.8 eelanium Ile
one of the .7-nst 7w!.dcly I-v, tke Sc-rl-st U:nt~,;% (%RF,~~ 1~1., '113). 0.haz- mrit.hods
c-f byd~o-
recorwmands2 &re baqi~d :,,n "he
lys"A.a of the ;Ref &ad by
thermal Tt;~ is
Card 5/

20620
S/06 11 ,/60/005/005/009/0,21
AC5 1 A029
On the Prodiic.`.I.,tr, of.' Pure m!d
based an th6 differeat towari hYdra"I-,-,, A u,31vatuz and thp &d-.
mixture elements ana the difZILerent the-t-mal ot aelenium hydrLde and
the hydrides cf the otheZ elemenvii~~, --re lcrfued, ma~h~:ds
eub lima t io~m and dls~!"at.Jrx- sx~ "--i ~--, ma-'Ihclg~ 'fyitg Z-slq-
nium (Ref,14, 37-40). TIA-19 ~,f tlne d.ffere--,. sim~,x',!;:7as tz, the eubli-
mation prck~~e7s wai etud.el ~7-.'UM~~kr vc-!,.Ic~ (R,?". 37~ -,,q" 12)~ Aja In-
vestigation -as -f tl-~ne listribut--on ~:,f Thr- adm.Ixti-ires of s--,Ifur,
thell"Lum a.-nd msr~-.uzy in th-i zoneg r:-f the of
selenium at 200-21ii50C. T-5- wan. "-at -~t thr-, ths-.1 alm-4.yturp.
v-
hardly volatilizea at- all with a e I enluxm 3 lo, t a P"" 5'~ C u idd oai to s e 1 e -
Tt j -ut hexs that
.9 pol ted rw
niumq thalli-am staxts volat.41117k.-
the presenne of mixed and in the gaseous phase
is a great obatautle .17i th~? zl-- rl li a';,'. oz, ---f frem ausif,--r- admixtuxes
at low temperaturee (Ref.L3).~ dilst'-Ilai~.cn -xE.E, fcund Ir-, have little
effeat in the of f.-rox, mez-~~,v7y admixtijrx6ie (Ref,42)..
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A'051/AQ_210
On the Production of Particular17 Pu-Ze- 58161~!_,Im ano, T911-jr:111~im
It is suggested to heat seleni!lm In aMP&U'-?1~ at 7000 C w-;Th eub~ie-
quent sharp cooling in order to pu3:tfy .-It --!f cxygen (Ref.40). Pure selenium
was obtained in this way with a in lk-.he order Of 10-6
ohm-cm. Distilla,.;.on with 9. fraotionaQng r-:Aumn -was al9r. i~.,;ed for the same
purpose. Zonal liquefaotion for p~~=:Lfyiaq 3eienium hAH proven unan.ciess.1111
due to severe of the 1?utid B918nium and Solidification of it
into the vitreoue a 4a 46 fRelf, 36). KozyZe-1- (Ref. 4-7) p,3!.rtad out that purift-
catiGn by the zonal 1'qliefE.- 'Oion- ma-thnl -;ax, p-~e' -e re5ult5 u:nder high
pressure. In 'he lattez the rate of Is SaLJA '40 :~n-
orease. In refa=Lng to the methcdo fj:-z ru:ze talluzium. the fvllow~
ing facts are listedt `.ha zaw-materiala aze sf ths non-
ferrous metaill--mg,71
tellurium usually ~a c.- the F-214-n a grea" deal
of admixtures of te-Illirii=2 pa-z-oxide, eodii=,
copper, silver, 19=d, bi--muth, at-,;. The 1%ttez are In th~_ 'Ibotun'A state, fo-~m-
ing tielluridea, oxid,,.~r;, a 9,a.-14
solution with Pa'.-e tellurium -114 _~i3ed in th6
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20620
S/063/60/005/005/003/02,
A051/AO29
On the Prodv.~'Iion of Partioul&rly Pure Selen~uz. and
industr-i for the Droductloz% of alloys with p-ropez-
ties. The -Ncxks of Ref-46-5'~ are ded',7,ated tc~ ~;hs P"ady of the effect of
various admixtures and acti7~ting additlon5 ~_'n ~he t1tNermoslectrical
ties of the alloys. Lead and tir. ar6 ths m,~t -~;.adea_;Zalble in
tellurium. Methods fts a:,-e az~d --hemizal 4.7. na-
ture or a combination -f The ohexloal are based oza the Te-
crystallization or i-epzecilpltati~:,n -?f tellurium arad -"Is compounds. Re-
duction potentials of tetravalent. a~ad salan4um are different aad
depend on the an4dity of the med~.,arz (Ref.2,0, 54, 46). 71 waa shown recent-
ly that this method is U.11nuitable for separating out small admixtures of
selenium. Tellurium can be puzif:Led of heavi mvtals and selenium by apply-
ing the properties of the amphollario nsture of the tellurium peroxide and
its low solubility (Ref.24)- Tellurium pert~xide ---- purified of iron or
heavy metals by belng dl-3,soived ia sodi,.im hydroxide. At a pL1 - 10 precipi-
tation of the hydroxide or that of the tellurites of various compositions
is accomplished (Ref.56, Solov-a-thkov 'n Ref.1-5 the means by
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20620
9/06 601005100510091021
A051YA029
On the Production of Particularly Pure Selenium and Tellurium
which tellurium peroxide can be purified of copperg magnesium, aluminum,
lead, antimony, bismuth, v--!z.p using the low solubility of tellurium peroxide
in nitric acid. The purification of tellurium by recrystallization of the
compounds is used more rarely than other methods at the present time (Ref.
59, 60). Tellurium can be purified of selenium and sulfur admixtures by
melting with potassium cyanide (Ref.64). The physical methods of purifica-
tion are consideredi the sublimation and distillation of metallic tellurium
in a vacuum, distillation in a flcw of hydrogen or of an inert gas, distil-
lation of tellurium compounds, zonal liquefaction and dirGcted crystallize-
tion (Ref.58, 65, 66). A study of the admixture behavior in vacuum distil-
lation has revealed that the chloride admixtures oondense ir. the colder
sections of the zone of condensation (Ref.66, 613 and their content in the
main zone of condensation can be reduced (Ref.68~ by 300-400 times. The
author has establiahed that the selenium admixture in tellurium, both in
sublimation and distillation, --ondensea actually together with tellurium
(Ref.70). It is recommended that tellurium be Ghemically parified prior to
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20620
S/063/60/005/005/009/021
A051/AO29
On the Production of Part_L~ularly Pure Selanium, and Telluriam
vacuum sublimation, in order to eliminate the selenium admixture. However,
the authors doubt the need for eliminating the selenium admixture in the
case of semiconductor manufacture. Sublimation J-a a hydrogen o= inert gas
flow is another effective method suggested for purifying tellurium (Ref.71-
73). The sublimation and distillation of ~elluriun compounds, 1.4ke tetra-
chloride and peroxide, have only a limited 6ignificance (Ref.60, 75, 77).
A high difference in the vapor pressure of the selenium peroxide and the
tellurium peroxide could be used for separating tellurium from selenium ad-
mixtures (Ref-78). Due to the complexity of the apparatus needed the re-
cently suggested method of t-ollurium purification based on tho thermal diB-.
sociation of tellurium hydride is unpractical. Besides, the latter method
would give a low yield of the pure product,viz., 24 ~- and less (Ref.79).
Tellurium is subjected to zonal liquefaction when it is necessary to have
a product of the highest purity. This is necessary for research purpoaea
(Ref.83). Zonal liquefaction is uneffective in the case of eliminating
selenium and magnesium admixtures (Ref-46, 80). The direct crystallization
Card 10/11

206
S/063'90 005/005/009/021
A 0 5 1,YA 0 2 10
On the Production of Parti,~ularly Fure Selenium and Talluziliz,
method is simple but not very effective when purifying tellurium from ad-
mixtures in the order of 0.001 at.% (Ref.63) and selenium admixtures. In
4. -1
conclusion the authors point out that a aummary cf all -the exis4ing me 4hods.
of purification both in the Soviet Union and other oo-tzntries has shown that
the purest samples of these elements oan be obtained by the e-,)mbination of
physical and chemical methods of parification ander the condition that the
physical methods are used in thc- last stage. There is I table and 83 re-
ferences' 54 are Soviet, 9 German, 20 English.
Card 11/11

I
NOVOSELOVA, A. V.; PASINKIN, A. S.(Pashinldn, A. S.]j POPOVKIN, B. A~
Prepamtion of the highly pure selenium and telluri= knalsle
chimis 16 no.3198-ID7 JI-S 161.
(Selenium) (Tellurium)

NOTOSELOVA, A.Y.; PASHINKIN,.A.B., kand.khimicheskikh nauk;, POPOVEIN,
B.A.
Preparation of highly pure selenium and tellurium. Zhur. nMO
5 no. 5:557-562 160. (MIRA 13:12)
1. Ohlon-korrespondent Akademii nauk SSSR (for Novoonlova).
(-Selenium) (Tellurium)