Solvent extraction of cadmium (II) from acidic media by Cyanex 302

The extraction of Cd (11) from chloride media of 1.0 M ionic strength by the commercial extractant Cyanex 302 in kerosene has been studied over a range of pH and reagent concentrations. The data have been analyzed both graphically and numerically to determine the stoichiometry of the extracted compl...

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Bibliographic Details
Published in:Hydrometallurgy 1995-01, Vol.37 (1), p.47-57
Main Authors: Almela, A., Elizalde, M.P.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Hydrometallurgy
Metals. Metallurgy
Production of metals
Production of non ferrous metals. Process materials
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Summary:The extraction of Cd (11) from chloride media of 1.0 M ionic strength by the commercial extractant Cyanex 302 in kerosene has been studied over a range of pH and reagent concentrations. The data have been analyzed both graphically and numerically to determine the stoichiometry of the extracted complexes and their extraction constants. The species CdR 2(HR) and CdR 2(HR) 2, HR being the active component in the commercial extractant, bis(2,4,4-trimethylpentyl)thiophosphinic acid, have been found to be responsible for the extraction behaviour observed.
ISSN:0304-386X
1879-1158
DOI:10.1016/0304-386X(94)00012-R