Metal extraction by ion exchange
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United States of America Patent
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May 31, 1994
Grant Date -
N/A
app pub date -
Oct 8, 1992
filing date -
Apr 27, 1990
priority date (Note) -
Expired
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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.
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