METHOD FOR GOLD REFINING Russian patent published in 1995 - IPC

Abstract RU 2048554 C1

FIELD: processing of low-standard feedstock by chlorination for producing high-standard gold for jewelry and electrical industries, and stomatology. SUBSTANCE: method involves melting feedstock in presence of flux and bubbling gaseous chlorine through the resulting melt in the amount of 0-. 30-0.73 kg per 1 kg of the sum of impurities in the feedstock with a yield of slag at least 0.32 kg per 1 kg of refined gold, and maintaining the copper content in slag not below 7.5% EFFECT: fuller utilization of chlorine due to its absorption by slag. 1 tbl

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RU 2 048 554 C1

Authors

Krylov V.V.

Orlov A.M.

Tatarintsev A.N.

Zvontsov B.F.

Draenkov A.N.

Dates

1995-11-20Published

1992-05-13Filed