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IPC

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Application

2000132451/12, 2000-12-25

(24)

Start date

2000-12-25

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Actual filing date

2000-12-25

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Published

2002-12-27

(72)

Inventor

Smirnov P.P.Khodjukov B.P.Batsanov S.A.

(73)

Holder

Oao Zavod Tsvetnykh Metallov Im. V.N.Gulidova"

METHOD OF RE-EXTRACTION OF RUTHENIUM FROM TRIBUTYL PHOSPHATE Russian patent published in 2002 - IPC

Abstract RU 2195431 C2

FIELD: production of metals of platinum group by extraction. SUBSTANCE: method of re-extraction of ruthenium from tri-n-butyl phosphate includes extraction and re- extraction. Extract containing ruthenium, copper and nickel is washed by hydrochloric acid solution for removal of copper and nickel from it. Ruthenium is re-extracted by acoustic soda solution. EFFECT: simplified procedure of purification of ruthenium re-extract from admixtures in refining. 1 tbl

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RU 2 195 431 C2

Authors

Smirnov P.P.

Khodjukov B.P.

Batsanov S.A.

Dates

2002-12-27—Published

2000-12-25—Filed

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