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2 193 012

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Application

2000131234/12, 2000-12-13

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Start date

2000-12-13

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Actual filing date

2000-12-13

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Published

2002-11-20

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Inventor

Gromov G.F.Dzekun E.G.Domnin V.V.Logunov M.V.Kvasnitskij I.B.Zajtsev B.N.Mezentsev V.A.Ufimtsev V.P.Romanovskij V.N.

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Holder

Proizvodstvennoe Ob"Edinenie

METHOD OF EXTRACTION OF LANTHANIDES AND ACTINIDES FROM NITRIC ACID SOLUTIONS Russian patent published in 2002 - IPC

Abstract RU 2193012 C2

FIELD: processing nitric acid wastes of radiochemical processes by extraction. SUBSTANCE: extraction of lanthanides and actinides by phosphinexide solution of different radicals in heavy inert thinner is performed in presence of tributyl phosphate in the amount of 10-60% of total volume of organic phase. Total amount of phosphinexide of different radicals and tributyl phosphate shall not exceed 80% of total volume of organic agents. EFFECT: increased range of acidity excluding thinning and neutralizing operations in preparation of nitric acid solutions for extraction. 3 tbl, 3 ex

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RU 2 193 012 C2

Authors

Gromov G.F.

Dzekun E.G.

Domnin V.V.

Logunov M.V.

Kvasnitskij I.B.

Zajtsev B.N.

Mezentsev V.A.

Ufimtsev V.P.

Romanovskij V.N.

Dates

2002-11-20—Published

2000-12-13—Filed