Preparation of chelating resin filled composite membranes and selective adsorption of Cu(II)

In this paper, chelating composite membranes were prepared with polysulfone (PS) and D418 chelating resin. The effects of process parameters such as the content of PS and D418 resin, concentration and temperature of the casting solution, and evaporation time on the structure and properties of the membranes were studied in detail. The performance of the static adsorption and the dynamic facilitated transport process were described. During the static experiments, the influences of membrane thickness, average resin particle size and the chelating reaction conditions on the adsorption rate and adsorption capacity of the membranes were discussed, respectively. The experiments of simultaneous extraction and stripping of Cu(II) were carried out in the course of the dynamic facilitated transport process.