SCIENTIFIC ABSTRACT ZOLOTOV, YU.A. - ZOLOTOV, YU.M.

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SCIENTIFIC ABSTRACT
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21M AUTHORSi Zolotov, Yu. A., Alimarin, 1. P. S071'89-6-1-11133 239 TITLEt Separa ffc~~p in Radioohemically Pure State by Uaing the Recoil of the Nuclei of Fission Products (Ilyd.eloniye Np 239 v radiokhimicheaki chistom sostoyanii s impolluovaniyea otdaohi yader produktov deleniya) PERIODICAL: Atomnaya energiya, 1959, Vol 6, Nr 1, PP 70 - 71 (USSR) ABSTRACT: UO2 is crushed in an agate bowl, and by means of elutriation a fraction of all those paxticles is produced which precipitate with a velocity of,~ 2.16 . 10-3 cm/eec. The concentration of the suspension is dotermin-ad 'by wei$hing. A certain quantity of the suspension is emptiel into a glass, diluted, and saturated with calcium mitrate. Tho solution is very thoroughly stirred and the calcium oarbonate is precipitated with concentrated carbobate of ammonia. The precipitate is filtered, washed, and dried. The weight ratio between UO and CaCO fluctuated in 'the var:Lous experiments 2 3 between 1000 and 1000- Card 113 The ready mixture is then irradiated in a reaotor in the Separation of Np 239 in Radiochemically Pure State S009-6-1-11/33 by Using the Recoil of the Nuclei of Fission Producto course of 12 to 48 hours with a neutrozi Mix of 7,-10 1.2 to 13 2 2.10 n/cm .sec. The irradiated sample is dis!3ol,red in a small quantity of cold 1-5 11 HC1, centrifu4jed, anti washed 2 to 3 timen with 1.5 n hydrochloric jLoid find 3 timas with water. The UO2 washed in this way was disijolv,id in xv 2m! hot concentrated nitric acid, and potmosiuv br-Dmide in a4ded to the solution for neptunium oxidation. The solution (,v0.1 molar KBrO ) ia then heated fol. 15 iiinutes at 90 to 0 3 100 C. After cooling aluminum nitrate is addod, alid the solution Is diluted up to 1-5 mol for A).(NO ) ana 1 mol for HNO ;' after 3 3 31 which it is filled into a measuring bowl for ether extraction. Extraction was carried out 5 to 4 times. Heptunium. iis recovered from the extracts. 239 The purity of the Np thue separated was checked on,the basis of the half-life. The method described makes it pos- Card 2/3 sible to separate Np 239 in the course of I to 2 hours, the Separation of Np 239 in Radiochemically Pitre State SOV/8 9-6-1 ~A 1/33 by Using the Recoil of the Nualei..of Fianign Froduote active fission products boing separated alraa&y during1he first two minutes. The mixture of UO and tho carrier mubstance can be, produced quickly and can bi easily used for % long time. InIstead of Caco it is possible to use also other material,lwhloh 3 is easily able to stand the high tetzparature in theirsaotor. There are 1 figure and 5 references. SUBMITTED: March 14, 1958 Card 3/3 5(293) OTHORS: Alimarin, 1. P., Corresponding Memberp S(YV1 20-124-2~-24/71 Academy of Scioncosi USSR# Zolotovr 714. A.# pPal'shinp Yo,~; S# . ... ...... ... TITLE; Ebctraction of Pentavalent Reptunium (Ocatraktsionnoye izvlecheaye pyativalentnogo neptuaiye.) PERIODICAL.- Doklady Akademi.i. nauk SSSR, 1959, Vol 124o Nr 21 pp 328-330 (IUSSR) ABSTRAM Raliable data on the extraction of parita-Valent ueptvaiium have hitherto not been available. In the prosont pcipflrt the aixthors prove that this extraction is possible by using 1-nitroso-2-nap)lthol-sollitionin n-butyl and isoamyl alcohol at pH 9-10. Indicator quantities of Np239 sorved for this parposet ~ 237 The controls were performed with weighable qua:n:tities of Np The iaotope Np 239 was isolated from uranium vikLich had boon irradiated with neutrons (Ref 3). The in:Ltial s-blutiong Of neptunium-(V) were obtained by reduction of n4~ptuniiun-(Vl) by means of hydrazine in the r--old. The results obtained are presented in fig-Lire 1. As can be seen from it the noptunium compound cannot be extracted up to p11 6 . The percentage rate of Card 113 extraction is dependent to a considovLble extent on the nat-~re Extraction of Fentavalent Neptunium SOV/aD .124-2-24/71 of the extiacting agenti with n-butyl alcchol !,')0-95% alle extractable at ono single oxtraotion$ irith isoiwyl alcohol 80-85',4vp whereas mothyl-ethyl ketoneq chlowoforp. and a.myl acetate are far less effective. Bemene and diathyl ether sparingly ' extract neptunium-(V). Higher amounts of fluor;Ues, carbonates, phosphates, acetates and citratee interforo with the extraction. Nitrates, chlorides and sulfatea exert no negmtivo influence. The said extraction is first of all indicative of the interattion of the NpO 2 ion with I-nitroso-2-naphthol. Reactiona of the neptunium-(V) with organic reagents are unknown with a few exceptions only (complex formation Refs 1, 6). Anzalytical reactions for Np(V) are miosing. The mentioned interaction in in agreement-with earlier observed spectronoopic data (Fief 6). The results obtained can be utilizel in the separation of noptunium from plutonium and uranium. The-extractLon of tetravalent plutonium (proved by the authors together withD. Nishanov) took place already at p11 1.0 - 1.5. The inveskigations are being Card 2/3 Extraction of Pentaval:ent-, Keptunium SOT/2Q-124 2:.24/71 oarri*ed on. There are. I figure and 6references, 5 of which are Soviet, ASSOCIATIONs Institut geokhimii i analitichel3koy khimii im. V. 1. Vernadskogo, Akademii nauk SSSR (Institute of Geochemistry and Analytical Chemistry imeni V4, I. Vernadskiy of the Academy of Sciences, UB.11R) SUBMITTED: October 16, 1958 Card 3/3 wN j-41, 1W ILU PT rl C/005/60/000/007tOO4/004 F0311FOO4. AUTHOR: Yu. A. Zolotov TITLE: Application of supersonic waves .n a nalytic Chemistry PERIODICAL: Hua HsUeh Tlung Pao. no, 7, 1960, 28-3Z TEXT: The chemical characteristics of supersonic waves, the effect of supersoni.c waves on electrolytic processes and the applicatio.,.-i of photo-sonic effects in chemis- try are described. In solutions, the speed of a so:aic wave dcpendij on the corizentra- tion-of the solution and obeys the formula (I - V) C?- ~ + V x. Z. 3 2 x 10 7 0 00 where V a weight of solute; C. a sonic speed in solvent or solution; 95 0 -n czysta."i- zing energy of solutions. Supersonic waves have an effect in many a.spects C111 elec- trochemistry. The depolarization characteristic will lower elect~olyttic voltaget cause a change in the properties and composition lof the electrolydc prec%piflitet and Card 1/ 3 Application of supersonic G/005/60/000/007JO04/004 F0311FOO4. affect electrolytic current and productioa rates. Supersoric wavee cari even aut thr., density of ions around electrodes, reduce polarization of elect:t-adefi, ar-d elimi.-Ve formation of gases. The fact that when infrared rays absorb gasell, a p,.Ilse sorand may-occur can be utilized au a means for photo-sordc aralysim of gitses. Supcrson,~-_ oscillation has been used for dispersing, condensing, Ogaslaig,, aad agitating in chiami- cal analysis or for changing oxidation conditions of solutions. Superwordic wa-,;-e,!s aVE. also significant in lighting sensitive photograpbic films and hwi-e been lised to inc:zcase the speed of multiphase reactions. ResearCh in hydrosynthesis is for VP.- search in analytic chemistry. Equation for cali:;ulating the magnitijdc sis are I ~ /-S'P ~P where G a. sonic speed; /190 a adiabatic compresLcibility; ~10 tq dea-,4-ity; h 0 0 0 g) 9 Card 2/3 C/005/60/000/007/0041004 Application of supersonic F031/FO04 where h a number of grams of water entering a solute; 9 a number of gram of solute in 100 gm of solution band /do a conlixension coeffizients of solutimi and solvent (wwf-,r) respectively, and R s Cl/2 M (10 where M-a molecular weight; IPs density; C - sonic speed; R -- sanic speed not de- pendent ontemperature. The author conludes that supersonic wa-ves axe being used in solving both theoretical and practical problems of analytic chemlst:ry. Thti ar'Atlf,, was translated by YUan Ta-wen (7086/1129/Z455). "here are t~ figures. :mpo-rMant. Englis h- language references are: Freyer, Z. B. O.T. Am. Charn. So,:Z. 53, L313 (031); Wada J. 1, Shimbo S. , J. Acoust. Soc. Amer. 24. 199 (1952) and Chem. Abstro ' 48 9136 (1954); Sasaki T., Yasumuago T. Ball. Chem. Soc. Japan 26, 175 (1953;1 and 28" 269 (1955). Card 3/3 3/06/6)11002/001/02 1 AS2 A057/A129 AUTHORs Zolotov, Yu.A. TITLE: Problems concerning the chemistry of actinide-a at thick %1111 Interna- tional Congress on Pure and Applied Chemistry PERIODICAL: Hadiokbimiya., v. 2s no. 1, 1960,,127 - 128 TEXT: The present paper gives short deeoriptiona of Awme rvporLe at the XVII International Congress on hire an4 Applied Chemistry vhii~,h toox place in Au- gust - September 1959 in Munich (Western Germany). The proia,9jit o+.Iected reports concern problems of actinide chemistry. Several authors fTom non-Soviet-b1cc countries are quoted, and the following lecturers from Sovie~t-bloa aountriea Iare citedt Erzowska-Tezebiatovskaja, Barteky and Chmylovskaja (Polarld) reported on the strunture of E;ome uranyl compoundz in aqueous solutions, the tielendence of solvaiion of the solution on the dielectric constan ., dipol.e, -.momient and stnicture of the solvent; Stark (Czechoslovakia) investlgated benzoyl ACAtalliti oamplexes In- his reports "Determination of the composition and. conotants of ciamplex fornmd, .Ion of some complexes by means of the extraction methcd;', Grdenl~ (Yu *gc,slavia) de- termined the coordination number of 11(r1) in acetyl acetone imid dialkyl phosphate Card 1/2 S I 186160,100.2100 1/0,IR 1/022 Problems concerning the chemistry of actinidee.... A05r/A129 compounds. SUBMITTEM October 21, 1959 Card 2/2 ZOLOTOV, fu.A. Syuposium on the theory of extraction. Zhuraeorg.1rh1m. 5 no.b: 1391-1392 Je '60. (MIRA 13.7) (Extraction (Chemietry)-Con,7esses) XWO1 s/A6/60/002/oo6/oo1/026 RZ, 4,s,20 0 A05012R AUTHORS: Alimarin, I. P.j Zolotov, Yu. A.; Pal'shin, Ye. !1. TITLE: The extraction of 1-nitroso-2-naphtholate of pentavalent neptunium PERIODICAL: Radiokhimiya, v. 2, no. 6, 1960, 637 - 642 TEXT: Pentavalent neptunium was extraotad at a pH 9 - 10 using aolu- tions of 1-nitroso-2-naphthol in n-butyl and isomul alaoholii and the timum I0on-' ditions of the extraction were-established. it is thought that the Npq ion is capable of forming intra-aomplex compounds, which can be extracted with organic solvents with a reagent correspondingly selected. The 1-nitroso-2--naphthol was chosen an reagent in this work. It was shown that extraotion can be used for purifying neptunium from plutonium and uranium. Indicator quantities of Np239 separated from uranium irradiated -with neutrons according to the mAhod based on the nuclear emission of the decay products (Ref. 15: Y. A. Zolotov,; 1. F. Allmarin Atomnaya, onerglya, 6, 1, 70, 1959) and in nome cases accordilig to ~,,he extraction method by Pal'shin (Ref. 16t E. S. Pal'shin, Y. A. Zolotoy, Itudiokilimlya, 1, 4, 482, 1959) were used. The effect of a series of factors on ilhs et',raction degree Card 1/5 21011 S11 8616 0/0 r,.100610rj 1 /02 6 The extraction of 1-nitroso-P-naphtholate A051/A129 was studied. The results oonfirmed thit neptunium extraction takes place at a pH over 6. The optimum pH value for oaah solvent depends in addition to other factors - on the solubility of the reagent in the volvent. Seven solvents wero studied: benzene, chlorofomo isoamyl alcohol, n-butyl alcohol, diethyl ether, amylacetate, methylethyl ketone. The bast solventsfor the extraction of 1-nitro- so-2-nAphtholate proved to be n-butyl and isoanql alcohol; It is pAnted out that uranyl 1-nitroso-2-naphtholate is well extracted with &1cohols. The extraction of maoroquaritities of Np237 (0.6 ma/ml) showed that macro -quantities are extraoted in the same manner as the Indicator quantities4 Since the extraotiom takes plAce within a pH range where neptunium (V) is quite hydrolyzed, the concelltration or the element should be as low as possible to avoid the formation of a hydroxide precipitate. It was seen that large quantities of fluoride phosphates, carbon- nates, oxalates and nitrates hinder the extraction of NPtIV111-nitroiso-2-naphtho- late with n-butyl or isoamyl alcohol at a pH = 9 - 10. EtlUlenedj' numine tetra- acetic acid has a significant negative effect on the extraction. Sinall quantities offluorides, carbonates and hydrogens peroxide have little effect. Nitrates, chlorides and sulfates have no effect at all. The presence of borjuE (buffer solution, concentration 9.05 M) does not impair the extraction, but uranium (VT) Card 2/5 S1186 6 i* /061/026 The extraction of 1-nitroso-2-naphtholate .... A051/A129 and plutontum (IV) not bound in the. oomplexes and being highly, hydrolyzed haw& grestlawtive eftat.Whan extracting with a 0.25 % solution of the reagcnt in isoa- myl alcoho tion of Npli;5 om a 0.05 molar solution of borax (pH - 9.24) a aomplote extrac- ~ is reached as a result of four extractions. N(liptunium M can be easily extracted from accumulated organic fractions by doulAe wasKing with a solution of a pH less than 6. In order to produce pure *239M, It is suggested using the extraction of nitroso-naphtholate with subsequent re-extraction of nop- tunium in hydrochloric or nitric acid of a given concentration. The following method for NpM purification without a carrieri commendedt the initial so- lution of neptunium not containing intex......., ..,,TV1,P_ions Is procesped for the purpose of transferring it to the pentavalent state with'-a 0.1 M sollation of hydrazine-nitrate in,l M HNO 3 at room temperature. The-solution is neutralized by a universal indicator and an equal volume of 0.114 borax solution Is added. Neptunium is extracted 4 times with equal volumes Of a 0.25 % solution of 1-nitroso-2-naphthol in n-butyl or isoanyl alcohol, shaking the funiial eaoh time for 4. minutes. The organic fractions collected (3-minuto shald-tig) are pro- cessed twice with small volumes of 0.1 M nitric acid. The combined-imter frac- tions are washed Vh chlo:roform ur)ti the water solution becomes colorless. The i) and Pu(T coexistence of Np __(V 'Vi in solution is accompliilied In the easi- Card 3/5 s11806oloOP-10061001106 The extraction of 1-nitroso-2-enaphtholate A05IIA129 eat way by processing the-element mixture with sodJum nitrite-in n1tria aoid hftotting it for a long time. The authors investigated the extftotio'n of, PUM); using various solvents (methylethylketone, amylaaetate, iso&nLyl aloo~ol, n-bUtYl alcohol, chloroform).; It was found thal~ extraction stirta at PH - 6.5 - 1.0; n-butyl alcohol ~extracts 1-nitroso.-Q-nalphtholate of PU V) botter than 1soWV1 alcohol. The separation of the elementis was found possible in certain cases only. The purification from small,quantitles of plutonium wi 'L-s accomplished in the folloZq) manner: plutonium was bound with a omall enaeatt'l of eamonium sul- fato: and NP was extracted with a solution of 1-nitroso-2-naphthbl in isoanyl alcohol. the main plutonium mass remains non-extraptedi If the argania frao- tions are-then washed with an aqueous solution at PH - 3, wtuniuia (V) is re- extracted and partially extraoted plutonium ra=lni in the organi4 phanot The washing is performed twicev There are 2 tables, 2 figuret3owd F[ vlaferenaelht~ 8 Soviet-bloc and 9 non-Soviet-bloci, The references to tkiot!faur ti~,;~t recent English language publicstdons read aa follows: H. A. C. Mlgja~r, Indw"~Chemi, 33, 297, 1957; J- Kooi, Traoer experiments on the solvent extrMation (if neptunlam* and plutonium. Amsterdam, 1956; G. Gibson, D. Mi Gruen, J. J. Utz, Jo Am. Card 4/5 2081 s1i8O16o1oo,'V6c61Oo 1 /02-6 The extraotion of 1-nitroso-2-naphtholate A(j5l/AlP.9 Chem. Soc., 74, 2103, 1952; D.M. Gr"jen, J. J. Katzo J. Am. Chem. Sc-c-, 75, 377.3, 1953. SUBKETTED: JulY 15, 1959. Card 5/5 Kl- p j~ VT TL PETRufulm, O.M. [translator]; RODIN, S.S.Ctrazalatorb ZOLOTM Yu.A. kand. khim. nauk, red.; AMWLIDOV). V,V., red.; M# tekhn. red. (Extraction in analytical chemistry and radioebenistry] Ek- straktsiia v analiticheakoi khimii i :radiokhimil.. Molik-tra, Izd-vo inostr. lit-ry, 1961. 350 P. 0411U 15:4) Translated articles, (Extraction (Chemistry)) (iWiochemistr-X) 8/07y() 1 /006/005/003/015 1 B~ B12 08 AUTHORSt Zolotov, Yu. A.f Marov# 1. M, and Mos)cvin, A. 1. TITt;Et 1,Complax compounds of pentavalent neptunium in 13olutions of oxalic acid and ethylene diamine tetrm%catio aoid PERIODICAM Zhurnal neorganicheakoy khimiit v. 6p no. 5p 1961t 1055 - 1062 TEXTs The authors studied the complex foemation of the ORO + ion with, oxalic acid and ethylene diamins tetraacetic acid t(y ion axtihazge, 1ho study was carried out statically by observing the distribution of Npw used as indicator between a 0*05 N so lution of UR 4 0104anii the Ky_~ (KU-2 cation exchanger in its ammonium form in the presetoe and in the absence of complexing agents* 'The experiments were performed at 20 t 20C. ' The grain size of the cation exchanger was 51) - 70 mesh. The I 'X of the solu- tion was measured with a glass electrode and the -.AIT-5 (LP-5) pH-metero In a pff-range of 2 - 5 NPV was found to form complex io as of the following Card 1/4 3/0% '1/006/005/003/015 Complex compounds of ... B121 B208 composition with oxalic acid 1fpO2ffC2049 NPO2C204-2and KPO 12(C2()4)2 Tits corresponding stability constants weret 5*0 - 10 P 1*1 d 104P and 20 * 107. At a pH below 116 no neptuniura oxelate comploxes were obtained. In the pH-range 2,0 - 3#2 NpO 2HC20 4 and NyO2C204" are formed$ and at a pH above 4 NP02(C204)2' 3-4 The complex formation is expressed by the follow- ing equationst KPO2++ RC20 4- NPO2lie204 (1'), NPO2++ C2 042- NPO2C204- (12)t + 2- 3;- NPO2 + 2- C20 4 -A NPO2( C204)2 (13)- The thermodynamic stability gonstants of the KpO 2+ oxalate complexes were compared with published data (Ref. 5t Be M. Gruen, J. J, Katz, J4 Amer* Chem. Soc., 751 3772 (1953))t the results are summarize4 in Table 3,~ In the pH-range 4#9 - 6#2 neptunium forms with ethylene diamine tetraacetic acid only one complex of the composition Npo 2T3- and a stability constant Card 2/4 $10781611006100510031015 Complex compounds of ... B121/noa (4.9 1 1.1).10 9. There are 1 figure, 4 tablest and 2t referenceat 12, Soviet-bloc and 9 non-Soviet-bloo. The four most recont r6forences t English language publications read as follows, 4o Go Gibmonp It. Mo Gruenip J. J. Xatz, J. Amer. Chem. Scoot 74, 2103 (1952)1 8. To C4 Ifindmang Le B. Magnuesont To J. La Chapelle, The Transuranium Elements# Nato Nuels En. Sev., Div. IV, 14B, paper 15.2p New York 1949; 94 R. SJOblomp J. C. Hindman, J. Amer. Chem. Soc., U, 1744 (1951); 10. R- M ,Diamond, K. Street, Go To Seaborg, J. Amer. Chem. Soc., 76t 146 (1954~. ASSOCIATION: Institut geokhimii i analiticheskoy khimii Lm. V, L~ Vernadskogo Akademii nauk SSSR (Institute of Geochemistry and Analytical Chemistry imeni V. I. Vernadskiy of the Academy of Sciences USSR) SUBMITTED: April 8f 1960 Card 3/4 3/078J61/606/005/003/015 Complex compounds of ... B121/B208i Munoffa OKO*"vMjwX MOM=MMUZ mows NpOst (pK.) ISMO C-00712 IMONUMOca FA-Knua t511 ;;Whma NP02"CnO4 - 2.70 NpOAOI- 93 4,39 NpOj(C&04)s~- 7.06 7,36 Legend to Table 3t Thermodynamic stability constants of thoi Oxalate complex ions NPO + (pK (1) Composition of the complexes; (2) data 2 a (Ref- 5); (3) data of the authors. Card 4/4 1~- "T FIM 0 AUTHORS: S/078/61/006,/008/005/0-18 B121/B203 Moskvin, A; I., Marov, I. If., and Zolotov, Yu. A. TITLE: Complex compounds of pentavalent neptunium -,-,ith- (,Iitric and tartaric acid PERIODICALs Zhurnal neorganicheskoy khimii, v. 6, no. 8, 1961, 1813-1820 TEXT.: The complex compounds of neptunium with oxy--acids hava been little studied. Only Yu. A. Zolotov and Yu. P. Novikov (Ref. 1~ Zh. neorgan. khimii 6, 1055, ig6i) detected a change in the absorption spectra of neptunium solutions in the presence of complex-forming substances. The complex formation at different pH values was studied by cation exchange between pentavalent neptunium in 0.05 molar NH 4CIO'l solution and the cation exchanger 0-2 (KU-2) In ammonium form in the presencii! of citric and tartaric acid. T~e pH value was measured with an 91-5 (1,P-15) pH meter with glass electrodes. In the pH range 4-3 -- 5.2, neptunium (V) was found to form the following complexes with citric Rcit-.-. Nro2cit2- and NPO HCit- with the stability constants (4.7 1 1-0)-10~' (px, - 3.67) and 2 Card 1/2 3/078J61/006/008/005/018 Complex oompoundsof... 95506 B121/B205 (4-9 t 1-0-10 2 (pK - 2.69). The absorption spectra oV neptunium M solutions in the presence of citric acid at pH - 0.9, 5.5, 5.1, 5.7, and 6.1 were recorded. The absorption maximum at 983 mVffl1ka found to shift due to complex formation to the side of increased complex fc-r-mation. -the complex formation in the system neptunium (V) - tartaric acid was deter- mined by a change in absorption spectra of neptunium (7) 3olutions in tho presence of tartaric acid at difforent pH values of thii! solutlons. In the pH range 3.2 - 6.2, neptunium - tartaric acid complexes of the following compositions were determined by cation exchai)get NpO 2 Var, NPO Tar-p XpO Tar3- , and NpO Tar5-. These complexes havve the following 2 2 2 2 3 stability constantsi 2. 3 . 102 (pK - 2.36), 2.1 - 10 2 (PK - 2-32)) 2~O 104 (PK - 4-30)1 and 1.5 - 106 (pK - 6.18). Thero are 7 figures 3 tables, and 4 Soviet-bloc references, ASSOCIATIONs Institut geokhimii i analitioheekoy khImij Im. V. 1. Vernadskogo AN SSSR (Institute of Geochemistry and Analytical Chemistry imeni V. 1. Vernadskiy AS MSR) SUBMITTEDt July 8, 1960 Card 2/2 ioLOTOV, Yu.P,.; ALnM114j I.P. Some aspects of the theory of extraction of inner-complex compounds. Dokl. AN SSR 136 no. 3:603-606 ja ?61. OaRA 14:2) ~ 1. Institut geokhimii i analiticheakoy khimii imoni VJ., Vernadakogo AN SSSR. 2. Chlen-Itorrespondent O'SSSR (for AlAmirin). (Extraction (Chemistry)) (Complex catipoundo) I- S/186/~--~; ~804/002/010/0 10 E075/E136 AUTHORS Y~u.Aj_.~!,d Nishanov, D. TITLE: Chromatographic separation of neptunium from uranium, plutonium and fission products PERIODICAL: Radiokhimiya, v.4, no.2, 1962, 241-244 TEXT: The authors describe a method of separation of 239Np from uranium irradiated with neutrons and demon,-tratud a possibility of separation of Np, Pu and U. Cation exclianger KY-2 (KU-2) in its H forin was used as a sorbent, and nitric acid as eluent. The study of elution of pentavalent Np indicated that with IM nitric acid as eluent Np is eluted very quickly and gives a sharp peak in -the elution curve. rhe main part of the fission products is sorbed on the column and is not cluted by nitric acid. Certain fission elements sucb as Ru, To and I are eluted together with Np. The final purification of Np is achieved by extraction with ether after iti3 oxidation to hexavalent state. Experiments were carried out to discover Card 1/2 Chromatographic separation of ... 5/1.86/62/oo4/oo2/o1o/o1o E075/E136 whether Np(VI) is reduced by cation-exchanger KU-2. It was found that the resin reduced Np(VI) to Np(V) in 11,1 nitric acido It was shown that Np, Pu and U can be separated easily on the cation-exchanger. Np and U are eluted separately with IM nitric acid followed by elution of F)a with 3M nitric arids There are 4 figures. SUBMITTED: April 27, 1961 Card 2/2 S/186/62/004/003/004i/022 E075/E436 AUTHORS: Zolotov, Yu-.'A,, Alimarin, I.P. TITLL: Influence of the nature of the solvent on the extraction of internal complex compOupds PERIODICAL: Radiokhimiya, v.4, no.3, 1962, 27 21 -,'17 ") TEXT: The authors investigated the influence of the chemical nature of the solvent on the extraction of a number of internal complex compounds of Np(V), V (VI), Co (II), Ce, Fe and some other elements. The solvents used were alcohols, ketones, complex esters,'simple esters, halogen substituted hydrocarbons and hydrocarbons. For each solvent the dependence of the extrac.tion on the p1l of the aqueous phase was studied and the comparisoa of v/ the various solvents was obtained at the optimum pit values. It was shown that Np (V) and Co (II) are extracted readily with: solutions of tenoyl trifluoroacetone in butyl alcohol.. The internal complex compounds in which the coordination forces are not saturated are easier to extract-with active oxygen-containing solvents, in particular alcohols, and are usually more difficult to extract with other compounds, such as hydrocarbons and their Card 1/2 5/186/62/004/003/004/022 Influence of the nature ... E075/E4!56 halogen substituted derivatives. Tile extrac.tion of the COMPI P.X' compounds can be made easier by their combination with the excess-reagent. In this connection the application of polydentate reagents is considered as possible in the future, Tile internal complex compounds with saturated coordination valencies are extracted with different types of solvents, including nonpolar.oxygen free solvents, such as chlorinated hydrocarbons. A sbheme is given for the separation of the complex compounds with saturated and unsaturated coordination valencies. The "saturated" compounds are extracted with the reagent solution in a non-reactive solvent such as benzene; the compounds with the unsaturated coordination often remain in the aqueous phase. Subsequently, tho second element is extracted with an active solvent such as butyl alcohol.' There are 4 figures and 2 tables. SUBMITTED: ?-larch 25, 1961 Card 2/2 - ZOLOTOV., YUOAO ....... M08 cow Sendnar Gn pnnjy,.jcaj ChbIP,',8t:"Y- 19 Li(~.90171- 1-172 164. (KIRA 2.7:;:L0) MILICH, 11. (Milic,14.1; PEVIIIJU119, O.M.1 ZOLOTOV, Yu.A.. I '. ., . : j! Extraction of uranyl thenoyltrifluoroac,stonate. Zhur,, neorg. khim. 9 nob1li2664-2667 N t64 (MRA 18-W 1. Institut geokhimil i analiticheskoy khImli, immi V.V. Termadskogo AN SSSR i Institut "Boris Xidrizhll, Belgrad, Yogoslaviya. CH,'-9JTOVA;-MdK4; ZOLOTOV, y1[. A Extraction and c(inplex forpiation oj* p Ju ton N-benzoylphen- y1hydroxylami-ne. P~Ookhhflia 6 14,1 i !j&jjlji1Jlf; RYABCHIKOV, D.I., otv. red.,- ALVARIN) I.P., red.; PAT,17, P.N., red.; BORISOVA, L.V.0 red.; PqMN', Yu.A., rod.; SENYAVIN, M.M.. red.; KARYAKIN, VOWNETS, It. P. . re (Modern methods of analysis; methods of stud3ring the chemical composition and structure of substan"a. On the seventieth birthday of Academician A.P.Vinogrado-I metody cheskogo sostava i stroeniia veshchootv. K L~ainidouiutl- letliu akademika A.P.Vinogradp", 333 1. Akademiya nauk SSSR. Institut gf3okhimii i azaliticbe- skoy khimii. 2. Chlen-korrespondeirt AN SSSR (:for Ryabchikov). 7u.A. Me t, 1. U v. hanism at' the nr,,.~ o" extraction or irrtni~(,~=,plex com.- p 0 u nd!i . D ok 1, ~ A N S S S'li 1. 6.7 n a . 3 -. 577- 5130 My f 6 5, (KIRA :1.8s5) 1. In~wtiljif, goo~h-lmll 1. anaLitichnskoy kid.nill im~ TJ Vornmdnk,~,go AN USSR, l-ubrd.ff,:,d Novi!rlho!ir 14, " t .1 11ITYUKIIIN, 0.1.1.; ALINJI)C N, I.P. 1 Extraction of ethjlE!n-idi.iiininetatraar!pl.at,pit (-fW exemplIfign by Irr,-p and thorium complexes) . Zhur. &nal. khim. Z) n.o.304',1-350 16,5. (MIRA 180) 1. Institut geokhImIJ I anallticheskoy kh-lkndl imeni Tarnadfloga AN SSSPH, Moskva. 7=011, Yu.A.- ALIMARIN, L.P.; BAGRETE~,. Tov. Extracticn of inner-complex oompotmils in ttio pre'Durwe ~of salts. ~rt 2. 1 Uranyl I- (2-pyridylazo) -2-nmphtho late. Trudy Kcm~ anaI. khim. 14, i 19-6j 165. (PURA IB37) Mill, 111 111111111 milli Mll H I .! 11 oi., I HIM I I I.i: I 1:iTIIIIuI1Ij1 !jj!3jj1jjI1RMjJ 11flik 114 11f.111 lip ZOLMOVO Yu.A.,- KTTZIKH~ 14.M.; LAMBREV, ;V.G. Extraction of iraier-complex compounds In the preipance, i~r, salts.46rt I., Extraction of hydroxyquinolinates from sobtuio~ ll.mvin(r, tEe, high d n te of potassinm chloride- And sadium iodide. Trudy KWn, an~all. 1-chim. a ~t 51-~'58 Mm I, PH M-Niff', I i, Ilk fl I I Vil I I I "Fulm'' MIM11-1 ~111 "UM1111-3, T" 'A Y,,'. neorg. khim. I. !Ir 5 I. jr,"AP-13t, t:-t,~t;l."';-01 Jx1cili V.J. ve, ACC r~ AP600669k- cm/4)(riw6i ro A 7 i 0 R zolotovo U V, ORG: 1xistitute of Gnocht--rAir~try 'Md Arlalyt 1, iif I Cljq! ji. r, 1,, - - . y_ ~l I jL11 ...... TITLE: Extraction of jUimm El-~ ul-a Lc,;.' SOLRICC: Zhurnal analiticheskoy Wiimii, v. 2Q,. no. 11, 1965, 1.151-11513 TOPIC TAGS.- indim compound, metal h-,,,dmcj-1 1- 7 0 1-1 71 ABSTFACT : The extraction of indium uith chlar(:tfamit was itudled ar a ili- lio-, of pli ilc a! -On (~f jni'j Ujl 111le in oenzene and iscam:.! a.Lcchol wem? al.so urecl. The ertractioll Wa!] carvied out by the direct md mve-rse motthads of m-aching, eqi:mlbr~km, and tll(! dil,ect method was shown to give low resull's prob.-ibly bocausc- cif hyditcilys-i5ji ^-F, indim, jill values for 50% extraction )f incilium wei-i!i :~Titcrmitied, amd th--~! mc~trni,,tir-n ccitat~lnt for choloroform, was fou-nd fro-n th(- equation lilio-, ln A~ + (MC: 5413.70 --card 1/2 .I ... ..... ....... I 1 131 ~: AIM: 1111,111:11TA:11 INI, 7" AP600869 ACC NR SUL CODE: 07/ SUBM DAM. 031(ov,64/ OR XG REF 0011 to bn ~s f n.101 0-11cr p ! (!~-jnl "!Mtn I'll -tr,Tt-~~J! !~,jj . , ex of the ird-Lm B-hyeroxyquinolinate camiplex n the CHC13- 2(7) 11T3 tel 9 F c C.02 ) and the 57:talhilit-v cop-st-, ji,.z A.,--iined .9,- in i on rhp, ma r v, a Ien - c P, iLn n E, c r C ~r ;I a:r ri a_s gure s 2 1 a-, I i, ss r-,, i k; a Ca:-d 2/2 C OTSI RZF- 0.11 H I VIM 1, 1 H 9, RI, P-1 1 tJ rr- V, W. r I I II F11, ~ 9v V IF,'r,, I V. ';Ti Ff Fri - TM, i ' ' ALIMARINp I.P.; ZOIDTOV, Yu.A.; KARYAXTII, A.V.,- PETROV,, A.V.; SUFIIANOVSXATAJ A. 1. Extraction of thallium (111) compounds from chloride solutions. Zhur. neorg, khim. 10 no.2024-530 F 165. (10.1RA 18:11) 1. InBtitut geokhimii i analiticheakoy khimii imen! Vernadskogo AN SSSR i Volgogradakiy politekhnicheekly Institut. Submitted MaY 5p 1964. BAGRZYEVs V,V,; ZOLM10 E.-ctraction of chtlate e=pounds In the yressnan, of aaats, Report 3: Cobalt (11) and umnium (ITI) atetyl 11-06tonates. Zhur. anal. khim. 20 no.8467-869 165, (walk istio) 1, Institut geokbixii I analltichesko7 khijzil Isani'Volo Vernadskogo AN SS.SR# Mookm. ZOLOTOV Yu.A.; LAMM""t, VX,.~ GlJ'vlIJT.";VA I/J.; Extraction of innkiv-.~ommdc.: ~-,mT-cr 13 f,r All 165 no.11117-120 11 165. I . I n s t i t i ik h Im 11 1 a r; a I I I All SOZR. Suhmivt,~,I Mmr.~I -9, ZOLOTOV. YU.A. "ScIvent extraction of metal chelates" by J. Stan,. Zhur. anal. khim. 20 no.9rlO26 165. (MIRA l8z9) .3 1-- bt~ n~l ZOIA)TOV, Yu.A. kalytical Chenlntry at the Tw(mtleth Inter-natJohal Congrood on Theoretical and Applied Chemistry. Zhur. anal. khim. 21 no. 1t137-141 166 (1--IIRA 191l) ZOLOTOVITOTI, G. [Zolotovich, G. 1; DEGEVA, It. rPecheva, It. I k Respiratory intpnsity of the flower of Rosa datwiscena. Mill. Doklady BAN 17 no.7:657-660 164. Aj 1. Experiment Station for Aromatic Plants, Kaunluk. ANTIPOVA-KARATAYLVA, I.I.; ZOLOTOV, Yu.A.; SFRYAROVA, 1,11. Spectrophotometric study of chloride complexes i~" irurl (111) in relation to the extraction of Iron by oxygen-corittdrUng solvents. Zhur. neorg. kh1m. 9 no.7t1712-1719 J.1, (AURA 1?:9) 1. Institut, gooklifizLt-1 i. analitl.cheakoy Milrii ixtini Vernadskogo AN S35R. ZOLIOTOV, Yu.A., kand.khimich. nauk; PETRUMIN, 0.14., kand.khimich.nauk Theory and practice of extraction. Zhur. VYJ[O 9 no. 2:145-156 164. (141RA 1719) ZOLDTOVJI Yu. A.; ALIMARIN, I.P.; BODNYA, V.A. Kinetics of extraction; a survey. Zhur. anal. khimo 19 no. 1: 28-36 164. (11,111k 17:5) 1. Institut geckhimii i analiticheskoy Ithimil Vermlskogo i Moskovskly gosudarstvennyy universitet Imeni Lownosora# Moakva. SHAKHOVAJ, N.V.; ALIMARIN, I.P.; ZOLOTOV, Yu.A. Goextraction of calcium and atrontiun with hyd.ri:;gyquiriolinates of certain elements. Dokl. AN SSSR 152 no-4tW-887 0 16). (MRA 16tll) 1. Institut geokhimil i analiticheskoy khimil im. V.1. Vernadskogo AN SSSR. 2. CiLlen-korrespondent AN SSSR (for Alimitr1m). ~ 1; PALEY, P.N.; RYABCHIKOV, D.I.; DEDKOV, Yu.14.1 WLOTOV, Yu.h. Mothods of concentration in analytical chemistry. Zav.1ab. 29 no.11:1279-1280 163. (MIRA 16312) CIMTOVA, M.K.; PETRIMIH~ O.M.; ZOU)lk)V, Ym.A. Fxtraction of inner--complex ol' other Clemente with N..Ix~rizoylphitiyltiyd:mx3tl.:jmitio. :tibur. mial. khijn. 18 no.5.588-595 My'63. 011IRA 17:2) SEERYAKOVA, I.V.; ZOLOTGVO Extraction of iron from solutione of chlorides of Tariami metals. hIltmi neorg.khim. 9 no.1:167-169 Ja 164. Extraction of a chlor.1