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

Kabay N. , Demircioglu M. , EKİNCİ H., YUKSEL M. , SAGLAM M., AKÇAY M., ...Daha Fazla

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, cilt.37, ss.2541-2547, 1998 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 37 Konu: 6
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1021/ie970488l
  • Sayfa Sayıları: ss.2541-2547


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.