Nickel processing

Details Nickel processing Nickel processing

1992-06-05

1993-05-18

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

C22B 300

Patent

active

052117456

ABSTRACT:
A method of processing intermediate nickel bearing products, the method comprising subjecting the intermediate nickel bearing products to an acid leach in order to dissolve substantially all of the acid soluble magnesium bearing minerals contained therein to provide an upgraded nickel bearing residue and a leach solution. The method is particularly suitable where the intermediate nickel bearing products are nickel sulphide concentrates or nickel iron oxide calcine.

REFERENCES:
patent: 2829965 (1958-04-01), Castagna
patent: 3305353 (1967-02-01), Duncan
patent: 3765873 (1973-10-01), Sato et al.
patent: 3804613 (1974-04-01), Zundel et al.
patent: 4006215 (1977-02-01), Hall et al.
patent: 4828809 (1989-05-01), Thomassen
patent: 4906293 (1990-03-01), Eldred
PCT International-Type Search Report--International Application No. PK 6571.

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