Recovery of precious metals

Details Recovery of precious metals Recovery of precious metals

1983-12-06

1985-08-27

Doll, John

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 2, 75109, 75107, 75115, 75121, 423 25, 423 29, 423 41, 423 87, 204109, C22B 1100

Patent

active

045376280

ABSTRACT:
The extent of recovery of precious metals, preferably gold and silver, from precious metal ores, concentrates, tailings and wastes which are also sulphide- and arsenic- and/or antimony-bearing, is enhanced by treatment with Caro's acid (H.sub.2 SO.sub.5).

REFERENCES:
patent: 1178081 (1916-04-01), Layng
patent: 2835569 (1958-05-01), Reynaud
patent: 4394357 (1983-07-01), Mounsey et al.

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