Recovery of precious metals from leach residues

Details Recovery of precious metals from leach residues Recovery of precious metals from leach residues

1982-09-12

1984-05-15

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 83, C22B 1100

Patent

active

044486049

ABSTRACT:
This invention relates to the recovery of platinum group metals and Au and Ag from high sulphur content base metal sulphide ore residues and also to the separation of Ag from the other precious metals referred to.
The process for the recovery of platinum group metals, silver and gold from a base metal sulphide-containing leach residue comprises:

REFERENCES:
patent: 4135923 (1979-01-01), Day

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