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2 170 773

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Application

99121047/02, 1999-10-05

(24)

Start date

1999-10-05

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Actual filing date

1999-10-05

(45)

Published

2001-07-20

(72)

Inventor

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

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Ehlektrolitnyj Tsinkovyj Zavod"

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

Abstract RU 2170773 C2

FIELD: nonferrous metallurgy, more particularly processing of silver-containing zinc cakes and recover of silver to prepare quality standard product. SUBSTANCE: method comprises flotation, roasting in air atmosphere and high-temperature leaching of roasted products in sulfuric acid solution at chlorine concentration of 0.3-1 g/l, concentration of silver in solid residue and subsequently smelt thereof to obtain Dope alloy. EFFECT: higher degree of recovery of silver. 1 tbl

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RU 2 170 773 C2

Authors

Kazanbaev L.A.

Kozlov P.A.

Kolesnikov A.V.

Dates

2001-07-20—Published

1999-10-05—Filed

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