Hydrometallurgical method for treating nickel mattes

Details Hydrometallurgical method for treating nickel mattes Hydrometallurgical method for treating nickel mattes

1977-11-08

1979-11-06

Hearn, Brian

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

423 40, 423 98, 423139, 423150, 423568, C25C 106

Patent

active

041735200

ABSTRACT:
This invention provides a process for treating a nickel matte to recover essentially pure nickel comprising: treating an aqueous mixture of the matte with chlorine to produce a solid residue and an aqueous lixiviating solution having a pH value which is substantially nil or positive; treating the lixiviating solution to produce a solution containing primarily nickel chloride; and electrolyzing the solution to recover pure nickel at the cathode.

REFERENCES:
patent: 2128548 (1938-08-01), White
patent: 3085054 (1963-04-01), Thornhill
patent: 3128156 (1964-04-01), Long
patent: 3402042 (1968-09-01), Lichty
patent: 3586477 (1971-06-01), Flood
patent: 3839168 (1974-10-01), Gandon et al.
patent: 3876748 (1975-04-01), Roorda et al.
patent: 3880653 (1975-04-01), Hougen
patent: 3950486 (1976-04-01), Cardwell et al.
patent: 4016054 (1977-04-01), Gandon et al.
Mantell, Electrochemical Engineering, 4th Edition, McGraw-Hill Inc., N.Y. (1960), pp. 176-179.

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