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Application

4487864/26, 1988-06-23

(22)

Actual filing date

1988-06-23

(45)

Published

1994-07-15

(72)

Inventor

Lazarev L.N.Dzekun E.G.Romanovskij V.N.Popik V.P.Prokopchuk Ju.Z.Jastrebov A.B.Babain V.A.Semel'Kin V.V.Shadrin A.Ju.

METHOD OF CESIUM AND STRONTIUM EXTRACTION FROM NITRIC ACID SOLUTIONS Russian patent published in 1994 - IPC

Abstract SU 1626592 A1

FIELD: inorganic chemistry. SUBSTANCE: method involves extraction of cesium and strontium from nitric acid solutions with a mixture of 0.1-0.33 mole/l chlorinated cobalt dicarbollide and 0.015-0.1 mole/l substituted polyethylene glycol in 1,1,2,2,12,12,13,13-octafluoro-4,7,10-trioxatridecane. Extraction mixture shows simplified composition as compared with prototype (three components instead of four ones). Capacity by cesium is increased by 3-5 times, loss of solvent is decreased by 2.5-3.6 times. Method can be used in processing of radioactive waste and for analytical assay of cesium and strontium. EFFECT: simplified composition of extractive mixture, enhanced capacity by cesium, decreased loss of solvent. 2 cl, 3 tbl

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SU 1 626 592 A1

Authors

Lazarev L.N.

Dzekun E.G.

Romanovskij V.N.

Popik V.P.

Prokopchuk Ju.Z.

Jastrebov A.B.

Babain V.A.

Semel'Kin V.V.

Shadrin A.Ju.

Dates

1994-07-15—Published

1988-06-23—Filed

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