Document Type and Number:
Japanese Patent JPH0143590
Kind Code:
B2
Abstract:
A novel method is disclosed which enables gallium and/or indium to be selectively separated and concentrated from a solution containing them in very low concentrations together with many other metal ions in rather high concentrations. The solution is passed through a bed of a chelating ion exchange resin having an amino carboxylic acid group either immediately or after the pH adjustment. Gallium and/or indium adsorbed on the chelate resin is desorbed by eluting with a mineral acid. The eluate, after the pH adjustment, is passed through another bed of a chelating ion exchange resin having an amino carboxylic acid group, and the resin is treated with a mineral acid to elute the metal ions adsorbed on the resin to thereby recover gallium and/or indium in the form of a concentrated solution.
More Like This:
Inventors:
SEKINE KUNIO
MASUDA HITOSHI
ISHIBASHI TAKAMICHI
HIRAI MASAHIDE
TOMOSHIGE SHOZO
KONDO KOZO
MASUDA HITOSHI
ISHIBASHI TAKAMICHI
HIRAI MASAHIDE
TOMOSHIGE SHOZO
KONDO KOZO
Application Number:
JP6001383A
Publication Date:
September 21, 1989
Filing Date:
April 07, 1983
Export Citation:
Assignee:
DOWA KOGYO KK
YUNICHIKA KK
YUNICHIKA KK
International Classes:
C02F1/42; B01J45/00; C01G15/00; C22B58/00
Next Patent: JPH0143591