Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal
Patent
1981-07-22
1984-02-14
McCarthy, Helen M.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ib metal
423 48, 423 88, 423508, 75 1R, 75105, 75118R, C01G 500, C01G 700
Patent
active
044316143
ABSTRACT:
The present invention relates to a process for the separation of gold and silver from complex sulfide ores and concentrates which, in addition to the primary metals, contain constituents having an adverse effect on the separation of the noble metals, by heating the sulfide ore or concentrate at a temperature of 600.degree.-900.degree. C. and a sulfur pressure of 0.2-1 atm in order to bring the complex metal compounds to a suitable form for subsequent alkalic cyanide leaching, and by separating the gold- and silver-bearing cyanide solution from the undissolved residue.
REFERENCES:
patent: 486330 (1892-11-01), Flury
patent: 2187750 (1940-01-01), Marvin
patent: 2238194 (1941-04-01), Tainton
patent: 2454336 (1948-11-01), Norwood
patent: 3174848 (1965-03-01), Bruce
patent: 3220796 (1965-11-01), Espinosa
patent: 4083924 (1978-04-01), Styring
Makipirtti Simo A. I.
Polvi Veikko M.
Saari Kaarlo M. J.
Setala Pekka T.
McCarthy Helen M.
Outokumpu Oy
Stoll Robert L.
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