Chloride assisted hydrometallurgical extraction of metal

Details Chloride assisted hydrometallurgical extraction of metal Chloride assisted hydrometallurgical extraction of metal

1995-06-07

1997-07-22

Phasge, Arun S.

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing single metal

205574, 205602, 205604, 205606, 205607, 423 27, 423 36, C25C 100

Patent

active

056500572

ABSTRACT:
A process for the extraction of a metal from an ore or concentrate comprises subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic solution containing halogen ions and a source of bisulphate or sulphate ions, such as H.sub.2 SO.sub.4. The metals which can be extracted by the process comprises copper as well as non-cuprous metals such as zinc, nickel and cobalt. During pressure oxidation the metal may be precipitated as an insoluble basic salt, such as basic copper sulphate, or substantially completely solubilized and precipitated later as the basic metal salt.

REFERENCES:
patent: 4008076 (1977-02-01), Junghanss et al.
patent: 5431788 (1995-07-01), Jones

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