Leaching process

Details Leaching process Leaching process

2008-05-20

2008-05-20

Langel, Wayne A. (Department: 1793)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

C423S150100, C423S658500

Reexamination Certificate

active

10475442

ABSTRACT:
A process for the oxidative leaching of sulphide mineral species, the method characterised by the method steps of: leaching a slurry containing the mineral species in one or more reaction vessels; circulating a stream of leach liquor to a flash cooler; flashing the liquor in the flash cooler at a pressure less than atmospheric pressure so as to dissipate heat; and recirculating the liquor to the or each reaction vessel.

REFERENCES:
patent: 4038361 (1977-07-01), Posel
patent: 5071477 (1991-12-01), Thomas et al.
patent: 5489326 (1996-02-01), Thomas et al.
patent: 5855858 (1999-01-01), Jones
patent: RE37251 (2001-07-01), Jones
patent: 48867/00 (2000-10-01), None
patent: 2016640 (1990-11-01), None
Derwent Abstract Accession No. 91-03715/06, Class M25, of CA 2016640 A (Amer Barrick Res) Nov. 17, 1990, Abstract.

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