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Application

2000100019/02, 2000-01-05

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Start date

2000-01-05

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Actual filing date

2000-01-05

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Published

2000-09-27

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Inventor

Gejkhman V.V.Kazanbaev L.A.Kozlov P.A.Kolesnikov A.V.Marchenko A.K.Girshengorn A.P.

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Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Ehlektrolitnyj Tsinkovyj Zavod"

METHOD FOR SULFIDE PURIFICATION OF INDIUM-CONTAINING SOLUTIONS Russian patent published in 2000 - IPC

Abstract RU 2156823 C1

FIELD: nonferrous metallurgy. SUBSTANCE: arsenic, antimony, copper, and iron are removed from solutions by the aid of alkali metal sulfide containing 5-9 g/l sodium hydroxide and 100-120 g/l sodium sulfide, the latter being consumed in amount 150-170% of amount stoichiometrically required for precipitation of antimony, arsenic, copper, and iron(III). EFFECT: increased recovery of indium and avoided hydrogen sulfide emission. 2 cl, 3 tbl, 3 ex

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RU 2 156 823 C1

Authors

Gejkhman V.V.

Kazanbaev L.A.

Kozlov P.A.

Kolesnikov A.V.

Marchenko A.K.

Girshengorn A.P.

Dates

2000-09-27—Published

2000-01-05—Filed

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