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2 095 446

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C1

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IPC

(21) (22)

Application

96102382/02, 1996-02-08

(22)

Actual filing date

1996-02-08

(45)

Published

1997-11-10

(72)

Inventor

Dubinin N.A.Digonskij S.V.Kravtsov E.D.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Inkorporejted"

METHOD FOR PROCESSING OF AURUM-CONTAINING HALF-FINISHED PRODUCTS Russian patent published in 1997 - IPC

Abstract RU 2095446 C1

FIELD: extraction of precious metals of aurum-containing half-finished products. SUBSTANCE: before melting origin half-finished products are dissolved in melt of halogenides of alkaline and/or alkaline-earth metals (e.g. , cryolite). After dissolution of oxides precious metals are isolated of the melt as precipitate. Then said precipitate is melt and separated of oxide solution. EFFECT: simplified processing, decreased extraction degree of precious metals. 2 cl

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RU 2 095 446 C1

Authors

Dubinin N.A.

Digonskij S.V.

Kravtsov E.D.

Dates

1997-11-10—Published

1996-02-08—Filed

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