✦ LIBER ✦

Iron elimination in cupric chloride hydrometallurgical processes by oxidizing extraction

✍ Scribed by Alain Gaunand; Georges Bouboukas; Henri Renon

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 727 KB
Volume: 42
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(87)80073-8

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✦ Synopsis

Iron elimination from chloride hydrometallurgical solutions by solvent extraction is strongly enhanced by the simultaneous oxidation of cuprous and ferrous species, which creates an important depletion of acidity. Accordingly, it is not necessary to add any neutralizing agent to shift the extraction __~ equilibrium Fe(II1) + 3RH tiFeR, + 3H+ to the right. Most of the extraction kinetics are controlled by ferrous oxidation, and are represented with the aid of a previous kinetic study of this oxidation catalysed by copper chloride.

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