Advanced Separation of Harmeful metals from Waste Effluents by Ion Exchange using II. composite sorbents of Potassium Hexacyanocobalt (II) Ferrate (II) and polyacrylonitrile binding matrix

Potassium hexacyanocobalt (II) ferrate (II)-polyacrylonitrile (KCFC-PAN) composite was prepared and its properties were studied by chemical analysis, scanning electron microscope, X-ray diffraction, Inductively Coupled Plasma and infrared. The ion exchange of molybdenum on the PAN based absorber was examined by batch methods. The adsorption of molybdenum from aqueous solutions on KCFC-PAN was investigated and optimized as a function of equilibration time and pH. The materials which were dried at optimum high temperature of 110 °C were found to be stable in water, dilute acids, alkaline solutions and relatively high temperature) and hence selectivity for PAN based absorbers The distribution coefficient values (Kd were significantly higher in comparison to KCFC absorbers. AD10

Keywords:

Hexacyanoferrates , Polyacrylonitrile binder , sorption properties , distribution coefficient