Process for the extraction of metal values

Details Process for the extraction of metal values Process for the extraction of metal values

1987-05-13

1990-05-08

Stoll, Robert L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423 24, 423 39, 204106, 204107, 210688, 210685, C01G 300, C22B 1500

Patent

active

049236865

ABSTRACT:
Metal values are extracted from aqueous solutions of metal salts containing halide or pseudo halide ions by pyridine derivatives containing the substituent --(COX).sub.A where X is the group --OR.sub.1 or --NH.sub.2 R.sub.3 and n is 1, 2 or 3. R.sub.1 is a hydrocarbyl group containing from 5 to 36 carbon atoms and R.sub.2 and R.sub.3 are hydrogen or a hydrocarbyl group wherein R.sub.2 and R.sub.3 together contain from 5 to 36 carbon atoms. The process is especially useful for the recovery of metals from leach solutions derived from sulphur-containing ores such as chalcopyrite.

REFERENCES:
patent: 2809197 (1957-10-01), Kruse et al.
patent: 3901776 (1975-08-01), Kruesi et al.
patent: 3951649 (1976-04-01), Kieswetter, Jr. et al.
patent: 4525330 (1985-06-01), Dalton et al.
patent: 4552632 (1985-11-01), Andersen et al.

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