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2 031 157

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C1

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IPC

(21) (22)

Application

5014080/02, 1991-07-04

(22)

Actual filing date

1991-07-04

(45)

Published

1995-03-20

(72)

Inventor

Gudkov S.S.Dement'Ev V.E.Semenova L.P.

(73)

Holder

Irkutskij Gosudarstvennyj Nauchno-Issledovatel'Skij Institut Redkikh I Tsvetnykh Metallov

METHOD OF PROCESSING SULFIDE GOLD-CONTAINING MATERIALS Russian patent published in 1995 - IPC

Abstract RU 2031157 C1

FIELD: metallurgy. SUBSTANCE: after bacterial opening of the parent material leaching is carried out with solution containing hydrosulfite ions, and process is carried out without oxidizing agents. Mass concentration of hydrosulfite ions is 10-100 g/l, and leaching is carried out at pH 3-5. EFFECT: improved method of processing. 2 cl, 2 tbl

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RU 2 031 157 C1

Authors

Gudkov S.S.

Dement'Ev V.E.

Semenova L.P.

Dates

1995-03-20—Published

1991-07-04—Filed

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