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2 013 454

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Application

4942960/02, 1991-06-05

(22)

Actual filing date

1991-06-05

(45)

Published

1994-05-30

(72)

Inventor

Amosova S.V.Potapov V.A.Dudareva G.N.Malova T.N.Khangurov A.V.

(73)

Holder

Irkutskij Institut Organicheskoj Khimii So Ran

METHOD OF GOLD EXTRACTION FROM MINERAL ACID SOLUTIONS BY EXTRACTION Russian patent published in 1994 - IPC

Abstract RU 2013454 C1

FIELD: noble metals, gold concentration. SUBSTANCE: method involves gold extraction from the mineral acid solutions by extraction with butyl(phenylethynyl)selenide. Method ensures to extract gold from mineral acid solutions decreasing extractant concentration by 10-fold, time extraction is decreased by 2-fold. Copper, zinc, iron, lead, nickel and cobalt under these conditions are remained in the aqueous phase. EFFECT: improved method of gold extraction. 1 tbl

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RU 2 013 454 C1

Authors

Amosova S.V.

Potapov V.A.

Dudareva G.N.

Malova T.N.

Khangurov A.V.

Dates

1994-05-30—Published

1991-06-05—Filed

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