Gold and silver recovery method

Details Gold and silver recovery method Gold and silver recovery method

1990-11-15

1991-12-24

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75423, 423 29, C22B 320

Patent

active

050749099

ABSTRACT:
A process for recovering gold and silver from refractory ores containing precious metals locked in sulfide and arsenide minerals including roasting a concentrate of said sulfide and arsenide minerals with lime at a temperature of about 600.degree. C. Thereafter the resultant calcine is ground, leached with cyanide and precious metals are recovered from the cyanide solution.

REFERENCES:
patent: 2187750 (1940-01-01), Marvin
patent: 3915689 (1975-10-01), Bartlett et al.
patent: 4802916 (1989-02-01), Victorovich et al.
Chemical Abstracts No. 121061c, vol. 75, 1971, p. 191.

Affiliated with

Also associated with

Rating

Gold and silver recovery method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gold and silver recovery method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gold and silver recovery method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-40995