Process for extraction of platinum group metals from chromite-be

Details Process for extraction of platinum group metals from chromite-be Process for extraction of platinum group metals from chromite-be

1980-06-10

1981-10-20

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 83, 75121, C22B 404

Patent

active

042958814

ABSTRACT:
A process for treating chromite-bearing ores to obtain useful mineral values, especially platinum group metal, therefrom wherein the ore is separated into magnetic and non-magnetic fractions; the non-magnetic fraction, containing a substantial portion of the platinum group metals, is concentrated and smelted to produce a metal layer containing platinum group metals; and the platinum group metals are then substantially disassociated from the metal layer containing them. The magnetic fraction of the ore may itself be further treated to remove any platinum group metals associated therewith.

REFERENCES:
patent: 1841207 (1932-01-01), Powell et al.
patent: 3304169 (1967-02-01), Death et al.
patent: 3783167 (1974-01-01), Tylko
patent: 3920789 (1975-11-01), Pittie et al.
patent: 4135923 (1979-01-01), Day
patent: 4188362 (1980-02-01), Edwards

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