Reduction leaching of raw sea nodules with sulfides

Details Reduction leaching of raw sea nodules with sulfides Reduction leaching of raw sea nodules with sulfides

1976-03-08

1978-04-18

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 50, 423 53, 423150, 423 33, 423DIG4, C01G 314, C01G 5112, C01G 5312

Patent

active

040851885

ABSTRACT:
A process for extracting metal values from sea nodules is provided in which nickel, cobalt and copper values are selectively extracted by leaching raw sea nodules in an aqueous ammoniacal medium in the presence of a reducing agent for tetravalent manganese and carbonate to precipitate the reduced manganese as manganous carbonate.

REFERENCES:
patent: 1934626 (1933-11-01), Nagelvoort
patent: 3262752 (1966-07-01), Moore et al.
patent: 3950487 (1976-04-01), Pemsler
Iammartino "Metals From Mn Nodules", Chemical Engineering, Nov. 25, 1974, pp. 52, 53.

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