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Application

99115433/02, 1999-07-20

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Start date

1999-07-20

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Actual filing date

1999-07-20

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Published

2000-09-27

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Inventor

Karmannikov V.P.Klimenko M.A.Fedulova T.V.Frolova I.V.Jurasova O.V.Draenkov A.N.Tatarintsev A.N.Kutilov V.A.Kovalev V.V.Kleandrov V.T.

(73)

Holder

Karmannikov Vladimir Pavlovich

METHOD OF PURIFYING RHODIUM AND IRIDIUM Russian patent published in 2000 - IPC

Abstract RU 2156819 C1

FIELD: technology of recovery, separation and purification of rhodium and iridium. SUBSTANCE: original solution contains rhodium and iridium total amount of which is by 20-70 times greater than total amount of platinum and palladium. Platinum and palladium are extracted with sulfoxide solution. Phase ratio is 1:(2-5). Rhodium and iridium remain in aqueous phase. They are separate by extraction with phosphoric acid tributyl ester. Method makes it possible to simplify production process, widen technological possibilities of process, increase purity of rhodium and iridium. EFFECT: more efficient purification method. 2 cl, 3 ex

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RU 2 156 819 C1

Authors

Karmannikov V.P.

Klimenko M.A.

Fedulova T.V.

Frolova I.V.

Jurasova O.V.

Draenkov A.N.

Tatarintsev A.N.

Kutilov V.A.

Kovalev V.V.

Kleandrov V.T.

Dates

2000-09-27—Published

1999-07-20—Filed

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