Process for beneficiating gold

Details Process for beneficiating gold Process for beneficiating gold

1978-01-27

1980-10-21

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 83, 209212, 427132, 427252, C22B 100, C22B 1100

Patent

active

042292093

ABSTRACT:
A process for beneficiating particulate gold from non-magnetic foreign material with which it is mixed which comprises contacting the mixture with an iron carbonyl in order to selectively enhance the magnetic susceptibility of the gold particles so that a magnetic separation between the gold and foreign material may be effected.

REFERENCES:
patent: 2132404 (1938-10-01), Dean et al.
patent: 2332309 (1943-10-01), Drummond
patent: 2944883 (1960-07-01), Queneau et al.
patent: 3490899 (1970-01-01), Krivisky et al.
patent: 3669644 (1972-06-01), Sato
patent: 3767760 (1973-10-01), Hougen et al.

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