METHOD OF PRODUCING ION-EXCHANGE MATERIAL ADAPTIVELY SELECTIVE TO RARE-EARTH METALS Russian patent published in 2014 - IPC B01J45/00 B01J39/20 B01J20/30 B01J20/26 

FIELD: physics.

SUBSTANCE: invention relates to ion exchange. Disclosed is a method of producing an adaptively selective ion-exchange material, which involves preparing a template-containing phase, a monomer mixture, adding the monomer mixture to the prepared template-containing phase while stirring and raising temperature. The obtained granules are treated with a desorbing solution to form a porous cross-linked polymer with molecular imprints, having a cavity of given size. The molecular imprints are formed by forming chemical bonds between a rare-earth metal cation and functional groups of aminomethylene phosphinic acids formed by reacting urotropin, paraform and aqueous hypophosphorous acid solution.

EFFECT: high selectivity and sorption capacity with respect to rare-earth metal ions.

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