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ABSTRACT
The earlier temperature ion-exchange separation of copper and zinc with temperature variations on Amberlite IRC-718 iminodiacetic resin was physicochemically described. Contrary to conventional double temperature ion-exchange separation methods, the temperature dependence of ion-exchange selectivity was not found to be a main driving force of the process. Separation of the two metals is controlled by formation of HSO− 4 complexes in the surrounding solution.
ACKNOWLEDGMENTS
The work was funded by TFR (Swedish Research Council for Engineering Sciences). We thank Mr. A. Lindqvist and Mr. J. Rousk for technical help with writing the paper.