Abstract
AbstractA review is presented of a series of investigations into the extraction of copper, iron, zinc and cadmium into kerosene solutions of Lix or Kelex reagents from aqueous solutions containing chloride ions. The effects of chloride ions on the extraction of copper and iron were smaller than might have been expected to result from the formation of inextractable metal chlorocomplexes, and the extractants retained their selective properties. Extraction with Kelex 100 from chloride solution increased the separation between zinc and cadmium, in comparison with sulphate solutions.
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