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2 026 819

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C1

(51)

IPC

(21) (22)

Application

4915588/26, 1991-01-11

(22)

Actual filing date

1991-01-11

(45)

Published

1995-01-20

(72)

Inventor

Shishkin D.N.Lazarev L.N.Dzekun E.G.

(73)

Holder

Nauchno-Proizvodstvennoe Ob"Edinenie Institut Im.V.G.Khlopina"

METHOD OF SEPARATION OF RARE-EARTH AND TRANSPLUTONIUM ELEMENTS Russian patent published in 1995 - IPC

Abstract RU 2026819 C1

FIELD: radiochemical technology. SUBSTANCE: aqueous solution contains 0.03 mole/l diethylenetriaminepentaacetic acid, 2 mole/l urea. Organic phase contains by 10-7 mole/l cerium-144, europium-152, americium-241 and 0.2 mole/l solution of chlorinated cobalt dicarbonyl in methanenitrobenzotrifluoride. Solutions were contacted for 5 min. Settling time is 30 min, temperature is 25 C. Degree of separation of cerium and americium is above 120, and that of europium and americium - 4.4. EFFECT: enhanced effectiveness of element separation. 2 cl, 4 tbl

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RU 2 026 819 C1

Authors

Shishkin D.N.

Lazarev L.N.

Dzekun E.G.

Dates

1995-01-20—Published

1991-01-11—Filed

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