Extraction of nickel from nickel-bearing ores

Details Extraction of nickel from nickel-bearing ores Extraction of nickel from nickel-bearing ores

1976-05-10

1977-03-01

Vertiz, Oscar R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

C01G 5300

Patent

active

040102378

ABSTRACT:
A process for the extraction of nickel values from a nickel oxide/silicate ore having a high magnesia/low iron oxide content, e.g. 15-50% magnesia and 0-20% iron oxide by contacting the ore with an aqueous polyalkylenehexamine solution in the presence of oxygen. The general formula for the polyalkylenehexamine is NH.sub.2 (CH.sub.2).sub.n NH(CH.sub.2).sub.m NH(CH.sub.2).sub.n NH(CH.sub.2).sub.m NH(CH.sub.2).sub.n NH.sub.2 where n and m are 2 or 3, n and m being the same or different. Preferably n is 2 and m is 3.

REFERENCES:
patent: 3475163 (1969-08-01), Watson et al.

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