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2 198 843

(13)

(51)

IPC

(21) (22)

Application

2001128783/12, 2001-10-25

(24)

Start date

2001-10-25

(22)

Actual filing date

2001-10-25

(45)

Published

2003-02-20

(72)

Inventor

Kuznetsov R.A.Pakhomov A.N.Andreev O.I.Filimonov V.T.

(73)

Holder

Gosudarstvennyj Nauchnyj Tsentr Nauchno-Issledovatel'Skij Institut Atomnykh Reaktorov

METHOD OF STRONTIUM EXTRACTION FROM SOLUTION BY CHROMATOGRAPHY METHOD Russian patent published in 2003 - IPC

Abstract RU 2198843 C1

FIELD: inorganic and preparative chemistry. SUBSTANCE: method involves preparing strontium solution with concentration of nitric acid 0-1.5 mole/l and desalting agent with concentration 1.5 mole/l, not less. Prepared solution is passed through chromatography column filled with inert carrier impregnated with solution of di-4,4'(5')-[(tert.-butyl)- cyclohexano]-18-crown-6 in 1-octanol. Column is washed out with nitric acid solution and strontium is desorbed. Invention allows to extract strontium from solution with the enhanced effectiveness. EFFECT: improved method of extraction. 2 cl, 2 tbl

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RU 2 198 843 C1

Authors

Kuznetsov R.A.

Pakhomov A.N.

Andreev O.I.

Filimonov V.T.

Dates

2003-02-20—Published

2001-10-25—Filed