| abstract |
Process for extracting Ge, Ga, In, As, Sb, Bi, Pt, Pd, Ni, and/or Co from an acid aqueous solution, wherein use is made of a resin with 8-hydroxyquinoline groups, resulting from the reaction of an aminated resin with an aldehyde and 8-hydroxyquinoline, characterized in that the aminated resin itself is obtained by imidoalkylation of a cross-linked styrene-copolymer and an ester or an ether of an N-hydroxyalkylimide and by hydrolysis of the imidoalkylation product. |