SCIENTIFIC ABSTRACT NIKOLAYEV, A.V. - NIKOLAYEV, A.V.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001137110005-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 23, 2000
• Sequence Number: 5
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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"Lo= Special Features In the Behaviour of Ruthenitm Hicro-quantities MrIng
Its Extraction"
towtopw ad PRAUstion tn Chudstry, OolleeLlon of pWra or
2o& AU-MLLan Mel. Web. Conf. au TAW of ft&owtlvt wA 3tobl* IeoU~ps ftd
?4WUAti*a ;z Micad NeumW wd Seiewe, Nuecov. Is&-va At SM, Vo5b, )ODpV.
IbU wolum pWlahod the reporU of Uw ChwaLstry Section or tte
2a4 Ag 8el I%eh Omf an thie of FaCowtive ad fteMe lwiwpee m4 rAdiation
In Sei~ ftd t1w fttlaml &vnrAW, opmwM by Aced !kI UOW and Oftiu
AdWa for Milixotion of Atomic 1wr(Ly under Clouscil of KitUatem UMP
ftecow 4-12 Arr 1957.

AUTRORBs Nikolayev, A. V. , 30rokina, A. A. , MaslennikoiL, A-3 784-2 9/'.'. 3
2MAt Cerium Xxtraction with Tributyl-Phosphate
(Sketraktoiya tsoriya tributilfoofatoa).
PERIODICUs Zhurnal ftor
anioheskoy Xhimii, 1950- Vol- 3, lir 1,
pp. 16o-164 USSR)
j
kBSTRAC?s After a short survey on respective literature (ref. 1-6) the
authors state that diethylether Is by far the beat extractor
(table 1). All extractors (with the exception of nitrometh&ne)
are explosive under the conditions of strong acidity. The
acidity can be reduced to a great extent by salting out (table
2). The strong increase of extraction with the Increase of
solditj pormito the conclusion that cerium-IT is extracted as
a complex of the H2/Ce(No3)6/ typo. Cerium Is precipitated
from the other phase wi th ammontual the yield Is about 90%.
In the place of ammonis. also hydrogen peroxide or other re-
ducing substaness can be used for extraction. In n HBO milieu
;
;
ertain
of a
the reduction is =ado more difficult but it ecqui
specific aharacter (table 8). Subsequently, instructions are
given for the production of pure 4-valent cerium as well as
for Its prfj~ctlonljjoa raw materials with a content of rare
Card 1/ 3 earth@. Ce - Pr were used as radioactive indicators.

-Cerium Extraction with Tributyl-k~oa;~~t,~-. 7 63 - 1 - 2 3 /4. 33
4., . I t '. "'nf, id
radioactive ig tope Pr144. mue &0,17,ty of t...
thorefore initially I.Ach decr.:Gsov, however, af ter f rc..; ~F-4
how (T 112 - 17 14 rATujea). Therf.- ranairD onlj a ji;antitj cf
Pr equivalent to Ce 4 (table Iii, It, tal- ani ot!.,~ru
the balanced activity regarding Ce and Pr14"47is Lentioned.
There are 10 tables and 6 roferonces, 2 of which are 31avic.
ASSOCIATIM OwIr of ft"oabWstry, WAcm Isetitate of Wa-Parrms IbUls
ad ftm in. m. r. musta (afedn mao-
khimli Mookovskogo inatituta tevetnjkh =ctalloy i zolota
imeni U. 1. Kalinina).
SUBMITTIDs June 18, 1957
AVAILABUt Library of Congress
Card 3/3

78-3-4-31/38
AUT301M Kurnakova, .6. G., Nikolayev, A. V.
TITLIs The Solubility, Diaeran of the Nitrates of Unuzyl and Thorium
With Salting-Out Components (DI:crww raosvorimosti nitratu:
uranils. i tortya a vysalivatoly ai)
PERIODICALs Zhurnal Neorganicheskoy Khim1i,1q58,Vol.3,Kr 4 pp.1028-IC36
(US.910
ABSTUCTs The solubility of nitrates of thorium and uranium was inv*otl,
gated by means of salting-out components like NH 3NO 31 CA(NO 3)2-
xg(NO U(NO )30 A,1(10 )3 In 1 5 n HM03
3)2 3)2 CU(NO3)2~ re(NO3 3
at 25 an; 200C.
In the iWetem XR 10 -VO (NO a ENO -9 0 the solubility
diagram was InvefillUtol. ;A*' double sall 2 2a 4soY U02(XO5)2'
2 9 0 forning In this system was Isolated In purest form.
i1th L Increase of the concentration of amomonium nitrate the
9o2ubIl1ty of uraAylaitrate increases.
The, solubility of urany1nitrate was also investigated with
Card 1/2 calcium-, magnalus.., copper.. and site nitrate as aelting,out

7 b - _5 4 5 " " 3 b
The SolublUty Diagram of the Nitrates of Uranyl and Thorium With Salting-
-Out Components
compounds at 250C. The solubility in the system thorium-nit-
rate with nitrates of copper, iron and aluainum was deter-
mined. In the system Th(NO )4-Cu(XO,)2"'.5 n RIO 3- H2 0 the
solubility curve has three secticust 1) CU(So 3)2.3 11201
2) Th(SO 3)404 H201 3) Th(NO 3)4' 6 H20.
By the determination of the density of the solutions the
distribution coefficients of urantas and thorium were do-
terained in the above-mentioned systems. "there are 17 fij;ures.
0 tables, and 2 referonoes.
SUMITTBD# My 9# 1957
".0, 1
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7e-3-4-32/38
AMIHORSs Mkol A- Ar - r,,rnakoys, A. G.
TITL%o ~1'8!0=,,ncont~rat. :f .~,-tqm UO 2(NO3)2-NH4 NO 3_H5O3(C2R5)2_O'H2O
(Isokontsentrats sistemy U02(X0 3)2_W84 NO 3- HNO 3- (C2H 5)20-H20)
PERIODICALs Zhurnal Noorganichookoy Khiati,1950,Vol.3,Nr 4,PP.1037-1043
(USSR)
ABSTRACTe The system UO (110 MH NO AINO -(C Ii ) 0-11 0 to regarded a-,
34; A Ad In3th*201t2
a pentacompogent to a raction of uranium
from this system the phase rules of pentacomponent systems
are valid.
The salting-out effect in this system under addition of
ammonium nitrate is explained in two wayss
ij by dehydration
2 by decreasing the dis3ociation of the compound to be ex-
tracted.
The distribution coefficient X of uranylnitrate of aqueous
solution under addition of saltina-out cozpounds anounts to
0,7- The distribution coefficient does not chang" with the
Card 1/2 increase of the concentration of uraviy1nitrate. As distri

70-5-4-32/56
("0
Isoconcentrat, cf,~rzfA-m 11021, 3)2_11H4 110 3' HNO 3- (C2H5)2-0-1'20
bution coefficient Increases with the increase of the acid
concentration and the ammonium nitrate concentration. "Me
optimum extraction of uranylnitrate lies In the range of
double salts between amonium nitrate and urany1nitrate.
(2 HE4NO 30 U02 (NO 3)2 .2 H20)'
The complete uranium extraction occurs irpiluted uranium
solutions and concentrated nitrA'c acid solution as well as
with i~n increase of the content of ammonium nitrate. There
are 5 figures and 8 references, 3 of which are Soviet.
SUBMITT'SDo M&Y 9, 1957
Card 212

;lKl01-AYFJ, A.V.
l
1
Diagramm wW series of separstlin In extraction. Lckl. AM
SSSR 157 no.5tll56-1159 Ag '64. (HIPA 17 r9)
1. Inst' tut noorganicheskoy khiAdl Sibirskogo otdelonlys,
AN SS . Chlon-korrespondent AN S53R.

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MOOCOW

5(4), 21(5) SOV/713 -4 -4-4 5/44
AUTHORS: I., ~rablnsjr. S. K.
TITLE s On the Isotope Sinhangs, of Trib4tyl Ptosphate Wit,
Phosphoril-o Ao.11 (Ob !-z;otcp,4.jm obmeaw trI'b-,j'.1lfosfata 9
foefornoy klslotoy'i
PERIODICAL: Zhurnsl neorgani sheakay kh!=tiq 1959t Vol. 4, Mr 4, pp 956-9'/8
(USS10
ABSTRACT: The authors Investigated the exchwige betweea tributyl phos-
phato and ralioact.'---e phosphclri~-. azld-sa well as theIr dar!
vatives. The covtw3t times rarged from one minute to one month,
and the invo3tigatiou covered &c.1 anl-alkaline solutions. The
results are 11.34.91 in tab!* i..Thq authors did not observe %n
exchange betweer radica-A"Pe phooptorl; &,.J4 anJ tributyl
phosphate. By a airAlle waarti6g xjl. tritity'. ;hosrhat-i la
almost completv4y freal froz I.hq 0-actlyi:jY c tnegod nho9;'!-orIc
9314. There are I table ani ^, r-4foren.,es.
SUBMITTED: February 11, 19.58
Card

5(2), 21(0) 50/17e-4-7-39/44
AUTIOU: PikolaysYl A. T., Kurnakova, A. G., Z. G.
TITLZ: Some Data on the Chemistry of Protactinium (Nekoteryye lannyye
po khimll protaktinlya)
PERTODICAL: Zhurnal neorLganlchenkoy khimil, 19591, Vol 4, Ur 7,
pp 1602-1686 (U53R)
AMTRACT: The work carried out by the authors developed simultaneously
with similar investirations carried cAjt in foreign countries,
so that parts of it hvm already been published elsewhere
(lefs 1-3). In the present article results hitherto not pub-
lished are given. The protactinium P&233 was obtained by ir-
radiation (20 h) of solid thorium nitrate. Its hftlf-life was
stout 27 days. An invastif;atlon was carried out of the co-
precipitation of Pa by thorium precipitaten, by UnO(OH) 2'
Fe(OH),, and other carriers, as well as of the tehavior of Pik
during extraction. Tablo I given the data of the co-precipitation
of Pa 233 with thorium- and calcium precipitates (thorium oxy-
carbonate, - hydroxide, -,peroxide, - oxalate, - iodate,
Card 1/3 -chromate, -salitylate, -fluoride, potassium-thorium sulfate,

Some Data on the Chemistry of Protactinium
SOT/70-4-7-39/44
calcium oxal&ti and calcium carbonato)o Thorium fluoride takes
no P& Into the precipitate as shown by table 2. All pre-
cipitates mentioned are soluble In ammonium carbonate, whore
the entire activity of the Pa is dissolved. The method of
"similar carriers" was used for the purpose of separating Pa
from Th* It Is baned upon the precipitation of calcium oxalate
of -carbonate from solutions of thorium bloxalate or -bi-
carbonate, I.e.. ju the reaction with the nano anion. Thiq cothod
to applicable &.',io to other active nuclei (e.g. splinter nuclet)
The nb-precipitation of P& by manganese dioxide was already
published In reference 1. Table 3 shows the results obtained
by the authors. It shows that in the case of a single pre-
cipitation it in worth while to Increase the quantity of the
carrier substance to 5 tag/al. in the case of a double pre-
aipitation I aglol will be sufficient, 2-3A of the Pa are not
co-pr*eipitated. ProoLpitation, however, becomes such more
complete If Initial Intensity In increased* Table 4 shows the
Jilling results obtained In the came of a primary activity of
1.06.10a top/*In as against 10 6 imp/min shown in trble 3. BY
Card 213 using the complex formation with saitcyne acid an extraction

Soso Data on the Chemistry of ProtactIntua.
SOT/78-4-7-39/44
method was worked out. Extraction is carried out with acetone,
and the acetone- and water phases are separated into com-
pon*nt parts by means of a saturated C&C12-solution. A quanti-
tative extraction with Th to carried out B thi method it
is possible to extract also U(TI) and PujIV5 andsall 4-, 5-,
and 6-valont elements. There are 4 tables and 3 references,
2 of which are Soviet.
SUMMED: February 11, 1958
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5(2) SOIF/74-4-8-40/43
AVTNOASs NUGIAWOV, As To 0 awtopso so M6
TMas lbo Distillation of juthealus Prom Str*ugly Diluted Nitric
Aald Malabimm (Abidemk& malaffi4a. LA o"O" r&&bavlWWkX
asetsokial&h raolwarow)
FZRIODICALs zbn.=-' was -4 -1 - -- I khWi, 1959, Tel 4, Xv 4,
pp 1935-1936-(920)
ABSTRAM In the pres*ac* of peroulphato and AS* lose radleruth*nIus nal
be distilled off to 98% RuO 4 without previous removal of nitric
sald (table I)o Tbo,botter oxiAL&IM aff"tv.aospar" to
asdi~ bromabe, ezLd&Ua&..*f silver into
Ae(11) and its reaction with Ru. A further advantago Is that
so gaseous brosias is f&raad*.Tkwro are I table and 10 rof-
erences, 6 of which are Soviet.
SUBBITTED: Harch 16, 1959
card 1/1

NIKOLAM, A.T.; SIHITSTV. U.N.
Stuly of Isotope oxchaW to sow cobalt compounds. hy. Sib. W.
AN SM no.709-64 159. (1UU 12:12)
leluetttut noorganichookoy khtnit Sibirskogo otAvlonlya AN SSSR.
(Cobalt--Isotopes)

5 (2)
AUTHOW Xikolay*vp A. V., Corresponding Meabor SOV/20-127-1-31/65
TTTLZ; The Extraction or Ruthenium Xitrosonitrate by the Were or
Butyl-phosphinte Acids (Ekstraktolya nitrozonitrato ruteniya
*firami butilfoarinorykh kislot)
PERIODICAL: Doklady Akademii neuk SSSR, 1959, Vol 127, Ir 1, pp 117 - 119
(U33R)
ANTRACT: The Interest In new alkyl-phosphorus extracting agents for
uranium, plutonium, and several other elements has lateiy in-
creased considerably (Refs lp2,10). They are able to extract
ur d plutolaim from aqueous solutions better than tri-
utylphosphato (TBPh) (Ret' 1). Ruthenium Is known to compli-
e__~ cats considerably uranium- and plutonium regeneration, since
It contaminates the organic phase with 0- and ractivity (Ref
3). Its behavior is investigated only in the case of extrac-
tion with TBPh (Refs MOO)- It to dissolved in the form of
nitrosonitrate complexes in the dissolution or uranium block*
in 00 Y Therefore it was interesting to Investigate the b9-
Card 1/3 havior of the first-mentioned substance in the extraction by

The Xxtraction of Ruthenium litrosonitrate by the SOV/20-127-1-3i/65
Were of Butyl-phosphinic Aolds
Itrosonitrato of radio-ruthenium in the series TBF`h