Precipitation of nickel, cobalt, lead sulphides in presence of i

Details Precipitation of nickel, cobalt, lead sulphides in presence of i Precipitation of nickel, cobalt, lead sulphides in presence of i

1974-12-09

1976-09-14

Vertiz, Oscar R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iva metal

423140, 423144, C01G 2100, C01G 5100, C01G 5300

Patent

active

039807525

ABSTRACT:
A hydrometallurgical process for separating iron and nickel contained in iron and nickel-bearing sulphide materials, comprising selective leaching of iron with respect to nickel with hydrochloric or other mineral acid to provide a leach solution and leached solids. The nickel contained in the leach solution is separated from the dissolved iron as nickel sulphide by precipitation with hydrogen sulphide in the presence of an iron-bearing substance in which the iron is present in a form selected from the group comprising oxides, hydroxides and combinations thereof.

REFERENCES:
patent: 1793906 (1931-02-01), Christensen
patent: 2296423 (1942-09-01), Clark
patent: 2872306 (1959-02-01), Morrow
patent: 2939767 (1960-06-01), Martin
patent: 3549321 (1970-12-01), Everett
Chemical Abstracts vol. 69, 1968 No. 100048q.

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