Influence of chelating agents on the recovery of Al(III), Fe(III), Ti(IV) and Na(I) from red mud by cation exchange membranes

Kr E., Cengeloglu Y., Ersoz M.

SEPARATION SCIENCE AND TECHNOLOGY, cilt.41, ss.961-977, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 41 Konu: 5
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1080/01496390600588911
  • Sayfa Sayıları: ss.961-977


The metal recovery from red mud solution containing chelating agents such as nitriloacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA), citric acid, and phosphoric acid were studied by using the Neosepta CMX and CMB cation exchange membranes in Donnan dialysis process. The stripping solution was 1.0 M HCl solution and no external potential field is applied. The efficiency of chelating agents on the recovery of metal ions through membranes was correlated with the flux data. It was observed that the removal and fluxes of metals were enhanced with citrate, EDTA and NTA chelating agents in contrast were decreased with phosphate complexing agent.