Method for pressure oxidizing gold-bearing refractory sulfide or

Details Method for pressure oxidizing gold-bearing refractory sulfide or Method for pressure oxidizing gold-bearing refractory sulfide or

1996-09-11

1998-12-22

Langel, Wayne

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 29, 423 30, C01G 700, C22B 1108

Patent

active

058514996

ABSTRACT:
Provided is a method for treating refractory gold-bearing ores that have both sulfide material with which the gold is associated and from which the gold is difficult to separate and having organic carbonaceous material having an affinity for at least one of gold and a gold complex. The mineral material is pressure oxidized in the presence of a halogen-containing material in a manner to reduce the susceptibility of the organic carbonaceous material to capture and hold gold during the pressure oxidation. Also provided is a gold-bearing effluent product from the pressure oxidation process. The effluent product comprises gold which can be effectively recovered by carbon-in-leach cyanidation of the effluent product. In many cases, gold recovery according to the present invention is increased substantially over standard pressure oxidation techniques.

REFERENCES:
patent: 4552589 (1985-11-01), Mason et al.
patent: 4610724 (1986-09-01), Weir et al.
patent: 4923510 (1990-05-01), Ramadorai et al.
patent: 5096486 (1992-03-01), Anderson et al.
patent: 5328669 (1994-07-01), Han et al.
patent: 5458866 (1995-10-01), Simmons
patent: 5653945 (1997-08-01), Gathje et al.
Ketcham, V.J. et al., "The Lihir Gold Project; Process Plant Design", Minerals Enginerring, vol. 6, Nos. 8-10, pp. 1037-1065, 1993.

Affiliated with

Also associated with

Rating

Method for pressure oxidizing gold-bearing refractory sulfide or does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for pressure oxidizing gold-bearing refractory sulfide or, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for pressure oxidizing gold-bearing refractory sulfide or will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2043183