METHOD OF GOLD EXTRACTION FROM THE MINING RAW Russian patent published in 1997 - IPC

Abstract RU 2094502 C1

FIELD: noble metals, mining industry. SUBSTANCE: the parent material is ground, mixed with alkali at ratio 1:1 and heated to 150 C, not below. Then mixture is bleached with water, settled, filtered and filter precipitate is treated with hydrochloric acid solution. Gold is extracted using binocular or bromoform. Method can be used for treatment gold-containing ores, concentrates and waste involving the bound gold and gold in different minerals ("stored gold"). EFFECT: improved method of gold extraction. 4 cl

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RU 2 094 502 C1

Authors

Moiseenko V.G.

Rimkevich V.S.

Dates

1997-10-27—Published

1996-01-17—Filed