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A. Uchiumi, S. Tokunaga
[Proc. Mater. for Properties, Vol.11, No.1, pp. 01-104, 1993]
Three kinds of chelating resins have been prepared by impregnation of a porous polymer resin with chelating reagents, e.g., thionalide, dithizone, or bismuthiol-II and adsorption characteristics of metal ions on these resins have been examined. The thionalide resin (Fig.1) has been found to adsorb only copper(II), antimony(III) and arsenic (III) ions selectively from strongly acidic media (pH 0-1.5). Different exchange rates were also found for these metal ions; 2.54 mmol/g for arsenic(III), 0.72 for antimony (III), and 0.41 for copper(II).
