Synthesis, characterization and ion exchange behaviour of a new phase of tin tungstate

Abstract

A new phase of tin tungstate, an inorganic ion exchanger of the class of tetravalent metal acid (tma) salt has been synthesized with good ion exchange properties. The material has been characterized for elemental analysis, thermal analysis (TGA, DSC), FTIR spectroscopy, X-ray analysis and surface area measurements (BET method). Ion exchange capacity has been determined and effect of heating on ion exchange capacity studied. The distribution behaviour towards several metal ions in different electrolyte media/concentrations has also been studied. The utility of this material has been demonstrated by carrying out some binary metal ion separations. Further, as a case study, the separation/recovery of lead from an effluent containing lead has been demonstrated.