Arsenic removal from nickel matte

Details Arsenic removal from nickel matte Arsenic removal from nickel matte

1974-06-24

1976-02-17

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 6, 423 88, 423509, C22B 2300

Patent

active

039389898

ABSTRACT:
Nickel matte containing at least about 28% sulfur is refined with respect to arsenic, antimony or bismuth by contacting molten matte with gaseous chlorine to chlorinate and volatilize arsenic, antimony or bismuth from the nickel matte. Advantageously, the molten nickel matte is provided with a halide flux to minimize volatilization of any nickel chloride that is formed.

REFERENCES:
patent: 3220796 (1965-11-01), Epinosa
patent: 3288561 (1966-11-01), Mellgren et al.
patent: 3466167 (1969-09-01), Illis et al.

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