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研究了201×7树脂吸附回收提金尾液中氰化物及金属铜的技术。通过对树脂的饱和吸附量、吸附速率及吸附等温线的研究,得到了201×7树脂对氰化物的饱和吸附量为44.39mg/ml湿树脂,铜的饱和吸附量为24.56mg/ml湿树脂;氰化物的吸附速率常数为k=9.30×10-4s-1,铜的吸附速率常数为k=1.39×10-3s-1;该树脂对氰化物及铜离子的吸附符合Freundlish方程;使用高浓度的NaCl溶液可以解吸树脂上负载的氰化物及金属铜,解吸率分别为85%和72%。
The technology of 201 × 7 resin adsorption and recovery cyanide and copper metal in the gold extraction tails was studied. The saturated adsorption capacity of 201 × 7 resin to cyanide was 44.39mg / ml, the saturated adsorption capacity of copper was 24.56mg / ml wet resin through the study of saturated adsorption capacity, adsorption rate and adsorption isotherm. ; The adsorption rate constant of cyanide is k = 9.30 × 10-4s-1, the adsorption rate constant of copper is k = 1.39 × 10-3s-1; the adsorption of cyanide and copper ion by the resin accords with the Freundlich equation; The concentration of NaCl solution can desorb the cyanide loaded on the resin and metal copper, the desorption rates were 85% and 72% respectively.