Leaching of copper ores to recover sulfur and silver catalyst

Details Leaching of copper ores to recover sulfur and silver catalyst Leaching of copper ores to recover sulfur and silver catalyst

1975-01-15

1976-08-10

Vertiz, Oscar R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 41, 423578R, 75118R, C01G 500

Patent

active

039742539

ABSTRACT:
In the oxidative leaching of copper ores with a silver catalyst initially dissolved in the leaching liquor, all or a portion of the silver precipitates and is recovered with the tailings. Elemental sulfur is extracted from the tailings, and the tailings are treated with concentrated sulfuric acid in the presence of oxygen to recover silver values for recycle to the leaching.

REFERENCES:
patent: 1937631 (1933-12-01), Christensen
patent: 3780167 (1973-12-01), Wheeler
patent: 3816105 (1974-06-01), McKay
patent: 3856913 (1974-12-01), McElroy
patent: 3886257 (1975-05-01), Snell

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