The Separation and Concentration of Gallium(III) and/or Indium(III) Using Polystyrene Resins Functionalized with Complexane-Type Ligands

1986 
Macroreticular styrene-divinylbenzene copolymers functionalized with iminodiacetic acid and diethylenetriamine-N,N,N″,N″-tetraacetic acid have been examined in order to apply them to the selective recovery of gallium(III) and/or indium(III) from acidic solutions. The equilibrium adsorption capacities, distribution coefficients, and metal-adsorption rates of the polymer resins for Group IIIb ions and other common metal ions have been studied. The selectivity sequence of the present resins are as follows: Fe(III)>In(III)>Ga(III)\simeqCu(II)>Zn(II)>Al(III). The selective recovery of In(III) and/or Ga(III) from acidic solutions has been demonstrated using a column of the present resins.
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