新型硫脲螯合树脂对金(Ⅲ)吸附性能的研究

Study on Adsorption Property of Thiourea Chelate Resin for Au(Ⅲ)

用静态法较系统地研究了新型硫脲树脂从酸性含金氯化溶液中吸附金及其解吸金的性能,结果表明,在实验条件下,新树脂在含有Au3+、Cu2+、Ni2+和Fe3+等离子的混合体系中,对Au3+有良好的吸附容量和选择性,并能定量地解吸树脂所吸附的Au3+。在适宜条件下,该树脂对金的吸附率和解吸率均达到98%以上。

In this paper, the adsorption property of a new thiourea chelating resin for gold from gold - bearing chloride solution and its desorption were studied. In the coexisting system of Au^3＋ , Cu^2＋, Ni^2＋ and Fe^3＋ , the resin had excellent absorption capacity and selectivity for Au^3＋, and the adsorbed Au^3＋ could be desorbed quantitatively. The both adsorptive and desorbing percentages can reach 98% under the proper conditions.