Removal of metal pollutants (Cd(II) and Cr(III)) from phosphoric acid solutions by chelating resins containing phosphonic or diphosphonic groups

被引:50
作者
Kabay, N [1 ]
Demircioglu, M
Ekinci, H
Yuksel, M
Saglam, M
Akcay, M
Streat, M
机构
[1] Ege Univ, Fac Engn, Dept Chem Engn, TR-35100 Izmir, Turkey
[2] Univ Loughborough, Fac Engn, Dept Chem Engn, Loughborough LE11 3TU, Leics, England
关键词
D O I
10.1021/ie970488l
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In this study, chelating ion exchangers containing phosphonic (-PO(OH)(2)) acid groups (RSPO, Diaion-CRP200) and the new chelating resins (Diphonix) containing sulfonic and gem-diphosphonic acid groups chemically bonded in a styrene-divinylbenzene polymeric network have been investigated for sorption of Cd(II) ions from phosphoric acid solutions. Comparison of acid dependencies of Cd(II) uptake measured with that obtained using a commercial sulfonic acid type ion-exchange resin (Dowex 50W(X8)) and a solvent containing resins (Actinide-CU) has been performed. The resin Diphonix has been employed for columnar sorption of Cd(II) and Cr(III) ions from phosphoric acid solutions.
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页码:2541 / 2547
页数:7
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