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The macroporous anion exchangers with long-chained cross-linking agents were investigated for thetungsten recovery from salt solutions.The physical-chemical characteristics of these sorbents were studied bymeans of sorption-desorption experiment aswell as electron and IR-spectroscopy.The anion exchangers on the basis ofmacroporous copolymers of methylacryIate and divinyl-ester of diethyleneg1ycol or tetravinyl-ester of pentaerythrito1possess the exchange capacity to tungsten 2-5 times greater than the porous anion exchangers on the basis of styreneand divinylbenzene,therefore they can be used for selective tungsten recovery from complex salt solutions.
The macroporous anion exchangers with long-chained cross-linking agents were investigated for the recovery of salt solutions. The physical-chemical characteristics of these sorbents were studied by means of sorption-desorption experiment aswell as electron and IR-spectroscopy. The anion exchangers on the basis of macroporous copolymers of methylacrylate and divinyl-ester of diethylene glycoliy tetravinyl-ester of pentaerythrito1possess the exchange capacity to tungsten 2-5 times greater than the porous anion exchangers on the basis of styrene and divinylbenzene, therefore they can be used for selective tungsten recovery from complex salt solutions.