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Application

95100997/02, 1995-01-17

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Actual filing date

1995-01-17

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Published

1997-06-27

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Inventor

Mironov V.E.Pashkov G.L.Mikhnev A.D.Isaev I.D.Tverdokhlebov S.V.Stupko T.V.Drozdov S.V.

(73)

Holder

Institut Khimii I Khimiko-Metallurgicheskikh Protsessov So Ran

PROCESS FOR RECOVERY OF COPPER, NICKEL AND COBALT FROM ARSENIC-CONTAINING AMMONIA-CARBONATE SOLUTIONS Russian patent published in 1997 - IPC

Abstract RU 2082782 C1

FIELD: hydrometallurgical processes for recovery of metals from ammonia-carbonate solutions. SUBSTANCE: process comprises precipitating copper in copper sulfide form with elementary sulfur at 105-110 c in first stage and precipitating nickel and arsenic by distillation to ammonia concentration of 3-5 g/cu.dm. Cobalt is precipitated from the solution with sodium sulfide and ammonia is simultaneously distilled to concentration of 0.1-0.3 g/cu.dm. EFFECT: more efficient recovery process. 3 tbl

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RU 2 082 782 C1

Authors

Mironov V.E.

Pashkov G.L.

Mikhnev A.D.

Isaev I.D.

Tverdokhlebov S.V.

Stupko T.V.

Drozdov S.V.

Dates

1997-06-27—Published

1995-01-17—Filed

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