Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
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.
Bell Malcolm Charles Evert
Sridhar Ramamritham
Andrews M. J.
Leff Miriam W.
MacQueen Ewan C.
The International Nickel Company Inc.
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