Simultaneous extraction of metal values other than copper from m

Details Simultaneous extraction of metal values other than copper from m Simultaneous extraction of metal values other than copper from m

1976-10-18

1979-03-27

Hearn, Brian

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 50, 423144, 423150, 423DIG4, C01G 314, C01G 5112, C01G 5312

Patent

active

041465725

ABSTRACT:
This invention provides a two-stage leaching procedure for manganese nodules for obtaining directly from a second leaching stage a substantially pure stream of copper free of other metal values, the other metal values, including manganese, nickel and cobalt, having been previously extracted in an earlier leaching stage. Both leaching operations are carried out utilizing an ammoniacal aqueous solution on a reduced manganese nodule.

REFERENCES:
patent: 2724645 (1955-11-01), Stringham et al.
patent: 2775508 (1956-12-01), Thomsen
patent: 2879137 (1959-03-01), Bare et al.
patent: 3276863 (1966-10-01), Drobnick
patent: 3471285 (1969-10-01), Rolf
patent: 3714326 (1973-01-01), Matson
patent: 3734715 (1973-05-01), Redman
patent: 3743585 (1973-07-01), Lowenhaupt
patent: 3751554 (1973-08-01), Bare et al.
patent: 3761250 (1973-09-01), Weir et al.
patent: 3988224 (1976-10-01), Barriere et al.

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