论文部分内容阅读
金的离子交换分离法比活性炭吸附法具有较好的动力学性能和较高的吸附容量,洗涤与再生无需高温,无需活化。由于树脂强度比活性炭高,金的损失小,回收率高。近年来,对吸附树脂和带有特殊功能团的吸着金的树脂的研究十分活跃,第三代树脂对金吸着容量高达500mg·g~(-1)干树脂,如此高的吸着容量为金的分离富集展示了新的前景。本文应用410哌啶树脂,比较了金的静态、动态吸着性能,包括吸着速率、吸着容量、酸介质影响和共存贵、贱金属离子对吸着的影响等。对金的静态、动态洗提性能的比较,包括洗提剂的选择、洗提剂浓度的影响和洗提曲线。研究了树脂从氯化湿法浸取液
Gold ion exchange separation method than the activated carbon adsorption has better kinetic properties and higher adsorption capacity, washing and regeneration without high temperature, without activation. As the resin strength is higher than activated carbon, the loss of gold is small, the recovery rate is high. In recent years, the adsorption resin and adsorption of gold with special functional groups of the resin is very active, the third generation of resin adsorption of gold up to 500mg · g -1 dry resin, so high adsorption capacity of gold Separation of enrichment shows a new prospect. In this paper, 410 piperidine resin was used to compare the static and dynamic sorption properties of gold, including sorption rate, sorption capacity, influence of acid medium and coexistence of expensive and base metal ions on sorption. Comparison of the static and dynamic elution properties of gold, including the choice of eluent, the effect of eluent concentration, and the elution profile. The resin was wetted from chlorinated leaching solution