Process for the recovery of gold from refractory ores by pressur

Details Process for the recovery of gold from refractory ores by pressur Process for the recovery of gold from refractory ores by pressur

1984-01-27

1985-11-12

Metz, Andrew H.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75118R, 423 29, 423 27, C22B 1108

Patent

active

045525897

ABSTRACT:
A process for recovering precious metals from a refractory ore by forming a slurry which is heated to a temperature in excess of about 150.degree. C. at an oxygen partial pressure in excess of about 10 psia for an effective amount of time to form a partially oxidized slurry which is then subjected to carbon-in-leach treatment to separate the precious metals.

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patent: 4188208 (1980-02-01), Guay
patent: 4259107 (1981-03-01), Guay
patent: 4267069 (1981-05-01), Davidson et al.
patent: 4289532 (1981-09-01), Matson et al.

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