Hydrometallurgical process for the treatment of oxides and ferri

Details Hydrometallurgical process for the treatment of oxides and ferri Hydrometallurgical process for the treatment of oxides and ferri

1978-10-27

1980-08-26

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75115, 75117, 75120, 75121, 75119, 204119, 423143, 423146, C22B 1922, C22B 2304, C22B 1508, C22B 4700

Patent

active

042193540

ABSTRACT:
A hydrometallurgical process for the treatment of a raw material which contains iron and other metals, with a sulfuric acid solution, in order to dissolve the metals and to precipitate and separate the iron, the separated metal sulfate solution being exposed to evaporation in order to crystallize and separate the metal sulfates from the mother liquor, which is recycled to the treatment stage performed with sulfuric acid solution, and the separated metal sulfate being recovered.

REFERENCES:
patent: 1834960 (1931-12-01), Mitchell
patent: 2599816 (1952-06-01), Ellsworth
patent: 3434947 (1969-03-01), Steintveit
patent: 3493365 (1970-02-01), Pickering et al.
patent: 3676107 (1972-07-01), Barnard et al.
patent: 3753692 (1973-08-01), Bourchier et al.
patent: 3910784 (1975-10-01), Rastas
patent: 3959437 (1976-05-01), Rastas et al.

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