Recovery of nickel and cobalt carbonates from ammoniacal leach s

Details Recovery of nickel and cobalt carbonates from ammoniacal leach s Recovery of nickel and cobalt carbonates from ammoniacal leach s

1975-09-22

1977-01-11

Vertiz, Oscar R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

423419, C01G 5106

Patent

active

040027198

ABSTRACT:
An ammonium carbonate leach solution containing dissolved nickel and/or cobalt values is sprayed into a flash chamber to flash a portion of the ammonia therefrom, resulting in the production of a fine precipitate of nickel and/or cobalt carbonate. The solution is introduced into a stripping tower wherein remaining ammonia is stripped therefrom to precipitate further nickel and/or cobalt carbonate on the previously precipitated carbonate, which function as nuclei to reduce deposition in the column.

REFERENCES:
patent: 1455299 (1923-05-01), Marquard et al.
patent: 1501876 (1924-07-01), Wreesman
patent: 3141765 (1964-07-01), Brown et al.
patent: 3248181 (1966-04-01), Akimoto
patent: 3719451 (1973-03-01), Burke
Boldt et al., The Winning of Nickel, Longmans Canada Ltd., Toronto, 1967, pp. 326-329.

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