Abstract
Ion exchange systems of chelating ion exchange resins, bead and foam impregnates have been evaluated for the possible applications to copper winning processes. Whereas the bulk properties and capacities of the chelating resins are far superior to the impregnates, the latter class of exchanger exhibits far better selectivity and kinetic properties to the resins. However, only chelating resin systems are likely to find application in copper hydrometallurgy, the copper selective resin XF-4196 finding application in dump leach processes. Improvements in the uptake rates of XF-4196 are suggested as being necessary for the incorporation of an ion exchange process into existing copper winning plant utilising spent acid liquors from electrolysis procedures as the eluting medium.
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