Recovery of metal values from a metal bearing source of nickel a

Details Recovery of metal values from a metal bearing source of nickel a Recovery of metal values from a metal bearing source of nickel a

1979-11-01

1981-07-28

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

252411S, 423 62, 423138, B22F 900, C22B 2302

Patent

active

042808391

ABSTRACT:
Metal values may be recovered from metal bearing sources which contain at least two metals, at least one of which is in the form of a sulfide, by treating the aforesaid source with an oxidant at an elevated temperature in the range of from about 600.degree. to about 1500.degree. C. and in the presence of an added promoter comprising a sulfur-containing compound. The treatment will convert at least one metal value to an oxide and at least one metal value is converted to the elemental state which contains a relatively minor amount of a subsulfide. The addition of the sulfur-containing compound will result in an increase in the particle size of the elemental metal, thus permitting the recovery of said metal more readily.

REFERENCES:
patent: 4163709 (1979-08-01), Burk et al.
patent: 4203759 (1980-05-01), Metrailer et al.

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