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2 192 487

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Application

2001108006/02, 2001-03-28

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Start date

2001-03-28

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Actual filing date

2001-03-28

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Published

2002-11-10

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Inventor

Kazanbaev L.A.Kozlov P.A.Skudnyj A.I.Marchenko A.K.Kolesnikov A.V.Girshengorn A.P.

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Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Ehlektrolitnyj Tsinkovyj Zavod"

METHOD OF WITHDRAWAL OF SULFATE IONS FROM ZINC PROCESS Russian patent published in 2002 - IPC

Abstract RU 2192487 C1

FIELD: hydrometallurgical process of production of zinc; cleaning solutions from sulfate ions. SUBSTANCE: proposed method includes introduction of neutralizer into solution; used as neutralizer is lime pulp at concentration of 50 to 60 g/l; neutralization is effected at pH = 1.5 to 2.0. EFFECT: avoidance of emission of sulfur-containing gases into surrounding medium; obtaining quality gypsum. 2 cl, 2 tbl _

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RU 2 192 487 C1

Authors

Kazanbaev L.A.

Kozlov P.A.

Skudnyj A.I.

Marchenko A.K.

Kolesnikov A.V.

Girshengorn A.P.

Dates

2002-11-10—Published

2001-03-28—Filed

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