Process for liquid-liquid extraction of cobalt from nickel

Details Process for liquid-liquid extraction of cobalt from nickel Process for liquid-liquid extraction of cobalt from nickel

1976-02-23

1978-05-09

Ozakt, G.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

75101BE, 75119, 423544, C01G 5110, C22B 2304

Patent

active

040887332

ABSTRACT:
A process for separating cobalt from nickel in an aqueous acid solution containing the above metals, which comprises contacting said solution with an organic phase comprising (a) 65-98% by volume of a concentrated alpha-hydroxyoxime extractant, a 1% by volume solution of which in xylene has per liter a maximum loading capacity of about 0.864 g. of copper, and (b) 2-35% by volume of an organophosphoric acid of the general formula: ##STR1## wherein R.sub.1 represents an alkyl, aryl or aralkyl radical, while maintaining the pH of said solution between 1 and 6, whereby cobalt is extracted from the aqueous phase to the organic phase and separating the resultant cobalt pregnant organic phase from the aqueous phase.

REFERENCES:
patent: 3399055 (1968-08-01), Ritcey et al.
patent: 3455680 (1969-07-01), Ashbrook et al.
patent: 3869360 (1975-03-01), Kane et al.
patent: 3941793 (1976-03-01), Ackerley et al.

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