METHOD OF RECOVERING PRECIOUS METALS FROM ORES Russian patent published in 1999 - IPC

Abstract RU 2137855 C1

FIELD: mining industry. SUBSTANCE: ore is preliminarily acidified with acid solution and then precious metals are leached with 0.01-0.2% aqueous solution of chlorine at ratio of molecular chlorine to hypochlorous acid more than 1. Chlorine is fed such as to provide in product solution pH <5, and electrostatic potential above 650 mV. EFFECT: enhanced recovery efficiency.

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RU 2 137 855 C1

Authors

Dokukin Ju.V.

Savenja N.V.

Mjakotin V.V.

Dates

1999-09-20Published

1998-07-14Filed