METHOD OF RECOVERING PRECIOUS METALS FROM SILVER-CONTAINING CONCENTRATES Russian patent published in 1998 - IPC

Abstract RU 2114203 C1

FIELD: precious metal recovery. SUBSTANCE: invention deals with flotation silver-containing concentrates and consists in that the latter are subjected to firing under redox conditions until ratio of sulfide sulfur to sulfate sulfur in ashes achieves 1:(2-3), after which ashes are melted in presence of fluxes to yield silver- gold-containing alloy and slag. EFFECT: increased silver and gold recovery into alloy. 2 tbl

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RU 2 114 203 C1

Authors

Leonov S.B.

Polonskij S.B.

Sedykh V.I.

Tumashev V.A.

Martynikhin V.V.

Dates

1998-06-27—Published

1997-05-30—Filed