查看文章

A novel synthetic terpolymer resin involving anthranilic acid/o‐toluidine/formaldehyde (AOTF) was synthesized for the recovery of harmful and heavy metal ions. The resin was characterized by physico‐chemical, elemental, FTIR, NMR and SEM analysis. Batch separation was used under the following conditions: different concentrations of various electrolytes; variation of pH and time intervals to determine the ion‐exchange properties of the resin for specific metal ions viz. Fe³⁺, Co²⁺, Ni²⁺, Cu²⁺, Zn²⁺ and Pb²⁺. Kinetic and equilibrium studies were also carried out with the terpolymer resin to evaluate the effectiveness of metal ion removal.

The ion‐exchange capacity for the resin was found to be 5.02 milli mol g⁻¹ indicating that the resin is a more effective ion‐exchanger than some phenolic and polystyrene ion‐exchangers. The amount of Cu²⁺, Ni²⁺ and Fe³⁺ taken up by the resin …