Modeling of copper(II) and zinc(II) extraction from chloride media with Kelex 100
The extraction of copper(II) and zinc(II) from acidic chloride solutions with protonated Kelex 100 (HL) was studied and the extraction isotherms were determined for systems containing individual metal ions and their mixtures. A chemical model was proposed and verified. It considers the coextraction of the following species: MCl{sub 4}(H{sub 2}L){sub 2}, MCl{sub 4}(H{sub 2}L){sub 2}{center_dot}HCl, MCl{sub 3}(H{sub 2}L), ML{sub 2}, and H{sub 2}L{center_dot}HCl. Zinc(II) is extracted as the metal ion pairs, while copper(II) can be extracted as the metal ion pair and the chelate. The model can be used to predict the effect of experimental conditions on extraction and coextraction of the metal ions considered.
- Research Organization:
- Poznan Univ. of Technology (PL)
- OSTI ID:
- 20019049
- Journal Information:
- Industrial and Engineering Chemistry Research, Vol. 39, Issue 3; Other Information: PBD: Mar 2000; ISSN 0888-5885
- Country of Publication:
- United States
- Language:
- English
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