Abstract:In view of the difficulty of selective separation of copper from the acidic leaching solution of zinc hydrometallurgy and the serious pollution of organic matter, the separation behavior and mechanism of D711 ion exchange resin static adsorption of Cu2+from the solution were studied in this paper. The results showed that when the mass concentration of Cu2+was 6 g/L, the initial molar concentration of H2SO4 was 0.01mol/L, the residence time was 120 min, and the stirring speed was 350 R/min, the adsorption efficiency of Cu2+was about 95% and the adsorption capacity of D711 resin was about 34 mg/g; Using 40% H2SO4 solution as desorption solution, the desorption efficiency of Cu2+ can reach about 98% under the conditions of room temperature and 350 r/min stirring speed of desorption solution; The mechanism of Cu2+adsorption by D711 resin is that the functional group in the resin reacts with Cu2+ in the feed solution to form the support is stored in the resin, while H+ in the resin is replaced into the adsorbed solution.