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Application

2000101362/02, 2000-01-17

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Start date

2000-01-17

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Actual filing date

2000-01-17

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Published

2001-08-20

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Inventor

Gejkhman V.V.Kazanbaev L.A.Kozlov P.A.Kolesnikov A.V.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Ehlektrolitnyj Tsinkovyj Zavod"

METHOD OF ZINC CAKES PROCESSING Russian patent published in 2001 - IPC

Abstract RU 2172352 C1

FIELD: nonferrous metallurgy; applicable in processing of silver-containing zinc cakes for recovery of silver into quality standard product. SUBSTANCE: method includes stages of flotation, roasting of flotation concentrate at temperature of 670- 750 C, leaching of roasted flotation concentrate in aqueous solution of sodium hyposulfite with concentration of 15- 50 g/l and concentration of zinc sulfate of 20-250 g/l, electrolytic precipitation of silver from solution and smelting of silver-containing product. EFFECT: higher recovery of silver into final product and production of quality ingots. 1 tbl, 1 ex

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RU 2 172 352 C1

Authors

Gejkhman V.V.

Kazanbaev L.A.

Kozlov P.A.

Kolesnikov A.V.

Dates

2001-08-20—Published

2000-01-17—Filed

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