METHOD FOR CLEANING URANIUM FROM PLUTONIUM

FIELD: fuel for nuclear reactors. SUBSTANCE: uranium and plutonium are extracted in solutions of tributyl phosphate in inert thinner. Uranium-saturated extract is rinsed with nitric acid solution containing iron II and hydrazine. Then extract is rinsed again with 0.5 mol/l solution of nitric acid co...

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Hauptverfasser:	SHEVTSEV P.P, SUSLOV JU.P, DROZHKO E.G, RAMAZANOV L.M, ROVNYJ S.I, SHEVTSOV N.A, KUZ'MENKO V.I, DZEKUN E.G, KARLOV V.A, GLAGOLENKO JU.V, UFIMTSEV V.P, MALYSHEV S.V, SUSLOV A.P
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: fuel for nuclear reactors. SUBSTANCE: uranium and plutonium are extracted in solutions of tributyl phosphate in inert thinner. Uranium-saturated extract is rinsed with nitric acid solution containing iron II and hydrazine. Then extract is rinsed again with 0.5 mol/l solution of nitric acid containing 0.5-1 g/l of oxalic acid and same amount of diethylene triaminepentaacetic acid. EFFECT: facilitated procedure; improved cleaning efficiency. 1 dwg , 2 tbl