Solvent extraction process

Details Solvent extraction process Solvent extraction process

1988-04-28

1990-09-18

Stoll, Robert L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423139, 423DIG14, 204107, 210688, C01G 300

Patent

active

049577140

ABSTRACT:
An improvement is disclosed in the solvent extraction process for recovering metal values, i.e. copper, from aqueous solutions, particularly aqueous solutions, containing copper and iron which may also include chloride, and more particularly to an improvement which provides for increased copper to iron ratios in the loaded organic extractant phase. The improvement comprises washing the loaded organic extractant phase prior to stripping of the copper values therefrom with an aqueous acidic scrub solution containing at least a portion of electrolyte.

REFERENCES:
patent: 3939203 (1976-02-01), Mattison et al.
patent: 4023964 (1977-05-01), DeMarthe et al.
patent: 4042664 (1977-08-01), Cardwell et al.
patent: 4083758 (1978-04-01), Hamby et al.
patent: 4255395 (1981-03-01), Gallacher et al.
patent: 4362607 (1982-12-01), Ritcey et al.
patent: 4582689 (1986-04-01), Kordosky
Solvent Extraction, Process Metallurgy 1, Part I, 1984, pp. 2-5, 20-21 and 62-63.
Solvent Extraction, Prin. and App. to Metallurgy, Part II, 1979, pp. 12-13, 290-293, 538-539, 226-229, and 312-313.

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