Synergistic solvent extraction process

Details Synergistic solvent extraction process Synergistic solvent extraction process

2005-09-23

2010-11-23

Bos, Steven (Department: 1793)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

C423S099000, C423S139000, C423S122000, C423S140000, C210S634000, C210S639000

Reexamination Certificate

active

07837959

ABSTRACT:
A process for separating one or more metal ions forming a first group of metal ions such as copper, zinc and ferric ions, from one or more other metal ions forming a second group of metal ions such as cobalt and nickel, comprising:contacting an aqueous solution comprising said first and second groups of metal ions with an organic solution comprising a phosphinic acid and a hydroxyoxime to extract one of said groups of metal ions into the organic phase, andseparating the organic and aqueous phases.

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Cheng, Purification of synthetic laterite leach solution by solvent extraction using D2EHPA, Mar. 21, 2000, Hydrometallurgy, 56, 369-386.

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