Purification of nickel chloride solutions

Details Purification of nickel chloride solutions Purification of nickel chloride solutions

1979-02-16

1980-09-09

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423100, 423139, C01G 5308

Patent

active

042217652

ABSTRACT:
Aqueous nickel chloride solutions containing such impurities as copper, iron, and zinc, and optionally, cobalt, and having an acid concentration ranging from about 0.2 N to 4 N HCl together with a total chloride concentration of about 4 N to 11 N are purified of said impurities by solvent extraction with an organic extractant of essentially tributyl phosphate (TBP) dissolved in a water-immiscible organic solvent, the solvent extraction being carried out at a selected concentration of TBP and a selected volume ratio of organic to the aqueous solution effective to produce a nickel raffinate substantially impoverished in said impurities.

REFERENCES:
patent: 3085054 (1963-04-01), Thornhill
patent: 3441372 (1969-04-01), Pegler
patent: 3988224 (1976-10-01), Barriere
patent: 4054638 (1977-10-01), Dreulle
patent: 4113588 (1978-09-01), Watanabe
Olsen, "Solvent Extraction of Chlorocomplexes by Triisooctylamine/Carbon Tetrachloride from Hydrochloric Acid Medium", Acta Chemica Scandanavica 20, (1966), pp. 1621-1625.

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