Process for the leaching of sulphides containing zinc and iron

Details Process for the leaching of sulphides containing zinc and iron Process for the leaching of sulphides containing zinc and iron

1985-05-24

1987-06-30

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75117, 75118R, 75120, C22B 1508, C22B 1922, C22B 1104, C22B 1304

Patent

active

046768289

ABSTRACT:
The extraction of zinc and copper and the recovery of precious metals from sulphurous zinciferous materials, also containing iron, becomes possible when these are treated by leaching under pressure in two stages, by judiciously controlling the relative quantities of sulphurous materials and acid.

REFERENCES:
patent: 4440569 (1984-04-01), Weir et al.
patent: 4505744 (1985-03-01), Weir et al.
patent: 4510028 (1985-04-01), Bolton et al.
patent: 4545963 (1985-10-01), Weir et al.

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