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Application

98103907/25, 1998-03-05

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Actual filing date

1998-03-05

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Published

1999-05-20

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Inventor

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

(73)

Holder

Karmannikov Vladimir Pavlovich

METHOD OF RECOVERING PALLADIUM FROM HYDROCHLORIC ACID SOLUTION Russian patent published in 1999 - IPC

Abstract RU 2130429 C1

FIELD: chemical technology of extractive recovery of palladium. SUBSTANCE: hydrochloric acid solution containing palladium and impurities, including platinum, . and 2.0-5.0 M hydrochloric acid is extracted. Extracting agent is sulfoxide solution having concentration of 10-40 %. Extract is washed with 1.6-4.0 M hydrochloric acid solution. Palladium is reextracted with 25% ammonia. EFFECT: high degree of extraction (at least 99.5 %) is attained, and products of high purity (at least 99.98%) are obtained.

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RU 2 130 429 C1

Authors

Karmannikov V.P.

Klimenko M.A.

Eljutin A.V.

Fedulova T.V.

Frolova I.V.

Jurasova O.V.

Draenkov A.N.

Tatarintsev A.N.

Kutilov V.A.

Kovalev V.V.

Dates

1999-05-20—Published

1998-03-05—Filed

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