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2 253 159

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IPC

(21) (22)

Application

2003107406/15, 2003-03-17

(24)

Start date

2003-03-17

(22)

Actual filing date

2003-03-17

(45)

Published

2005-05-27

(72)

Inventor

Kuz'Min V.G.

(73)

Holder

Repin Gennadij ValentinovichRepina Elena Jur'EvnaKuz'Min Vadim GeorgievichKlestov Aleksandr Rudol'FovichTsvetkov Lev Alekseevich

METHOD FOR SEPARATING VALUABLE COMPONENTS FROM IMPURITIES IN SOLID-PHASE PRODUCT OF RADIOACTIVE MATERIALS Russian patent published in 2005 - IPC

Abstract RU 2253159 C2

FIELD: decontamination of radioactive materials.

SUBSTANCE: solid product that incorporates radioactive impurities is dissolved in nitric acid, this being followed by multistage extraction. Part of extractant is passed to multistage extractor in the form of extract produced during pre-extraction of valuable components from dissolved product. Upon extraction water phase returns for dissolving operation. Impurities are localized and concentrated in head part of solid product recovery process scheme.

EFFECT: reduced amount of aqua-tail solutions.

1 cl, 3 dwg, 1 tbl

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RU 2 253 159 C2

Authors

Kuz'Min V.G.

Dates

2005-05-27—Published

2003-03-17—Filed