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2 235 375

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IPC

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Application

2002117843/06, 2002-07-02

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Start date

2002-07-02

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Actual filing date

2002-07-02

(45)

Published

2004-08-27

(72)

Inventor

Romanovskij V.N.Babain V.A.Smirnov I.V.Esimantovskij V.M.Todd Terri A.Lou Dzhek D.Kherbst R. Skott

(73)

Holder

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

METAL RE-EXTRACTION METHOD Russian patent published in 2004 - IPC

Abstract RU 2235375 C2

FIELD: recovery of liquid wastes of radiochemical industry including those containing nonferrous metals.

SUBSTANCE: proposed method includes treatment of organic phase with aqueous carbonic acid re-extracting solution. Re-extracting solution is essentially solution of organic amine carbonate with chelate for distillation of re-extract obtained and reconditioning of organic amine. Re-extracts produced in the process are free from salts of stable metals.

EFFECT: reduced content of organic compounds in re-extract.

5 cl, 5 ex

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RU 2 235 375 C2

Authors

Romanovskij V.N.

Babain V.A.

Smirnov I.V.

Esimantovskij V.M.

Todd Terri A.

Lou Dzhek D.

Kherbst R. Skott

Dates

2004-08-27—Published

2002-07-02—Filed