Hydrometallurgical process for selective dissolution of mixtures

Details Hydrometallurgical process for selective dissolution of mixtures Hydrometallurgical process for selective dissolution of mixtures

1979-10-22

1984-03-06

Meros, Edward J.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 27, 423 98, 423150, 75101R, 75112, 75114, 75117, 75119, C01G 500, C01G 5100, C01G 5300, C01G 2100

Patent

active

044353685

ABSTRACT:
The invention provides a process for the selective dissolution of oxygenated compounds containing at least one non-ferrous metal selected from the group consisting of nickel, zinc, and copper, present in a mixture of oxygenated compounds containing said at least one non-ferrous metal and at least one element selected from the group consisting of lead, cobalt, iron, manganese, and silicon, and comprises suspending the mixture of the oxygenated metallic compounds in an aqueous phase which, preferably, contains chloride and alkaline earth metal ions; treating the resulting aqueous suspension, maintained at a pH exceeding about 1, with chlorine, preferably at a temperature ranging from about 60.degree. C. to the boiling point of the suspension, to selectively solubilize the said at least one non-ferrous metal while the said at least one element remains in an essentially insoluble residue; and separating the aqueous solution containing the dissolved said at least one non-ferrous metal from the insoluble residue. The starting mixture of the oxygenated compounds is exemplified by the product resulting from the roasting of a nickel matte, a basic carbonate of nickel, a mineral oxide of zinc, and the dust of a blast furnace.

REFERENCES:
patent: 350669 (1886-10-01), Endlich
patent: 1736659 (1929-11-01), Mitchell
patent: 2971836 (1961-02-01), Hall
patent: 3647261 (1972-03-01), Stenger
patent: 3880651 (1975-04-01), Queneau

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