Exploitation of copper, nickel and cobalt by treating manganifer

Details Exploitation of copper, nickel and cobalt by treating manganifer Exploitation of copper, nickel and cobalt by treating manganifer

1981-10-26

1985-04-16

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 36, 423 37, 423 41, 423 43, 423 45, 423 48, 423140, 423146, 423150, 75101R, 75108, 75117, 75119, C01G 312, C01G 5100, C01G 5311

Patent

active

045115400

ABSTRACT:
Process for treating oxidized ores with a manganiferous matrix to recover the small quantities of copper, nickel and cobalt, which consists of attacking the aforementioned ore by means of an aqueous solution of H.sub.2 SO.sub.4 with the simultaneous injection of sulfur dioxide, at a temperature which does not exceed boiling point of the medium, at a pH less than 1.5; introducing an alkaline sulfide to precipitate the copper, nickel and cobalt sulfides in the suspension resulting from the attack; and separating by sulfides and the residue by flotation. The process is applicable to attacks on manganiferous nodules obtained from ocean beds as well as to attacks on land manganiferous matrix oxidized ores.

REFERENCES:
patent: 2864692 (1958-12-01), Mancke et al.
patent: 3544306 (1970-12-01), McGauley
patent: 4011072 (1977-03-01), Holman et al.
patent: 4029733 (1977-06-01), Faugeras et al.

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