TOA-煤油-KCN分散支撑液膜体系中Au(Ⅲ)的传输

Transportation of Au(Ⅲ) by Dispersion Supported Liquid Membrane System of TOA- Kerosene -KCN

摘要:

以聚偏氟乙烯膜(PVDF)为支撑体，煤油为膜溶剂，三正辛胺为流动载体，研究分散支撑液膜体系中金属Au(Ⅲ)的传输行为；考察料液相酸度、分散相膜溶液与解析液体积比、解析相中KCN浓度以及不同的解析剂对Au(Ⅲ)传输的影响。结果表明，当料液相盐酸浓度为2.0 mol/L, 分散相中膜溶液与解析液体积比为40:20, 用KCN作解析剂，KCN浓度为0.5 mol/L时，该分散支撑液膜体系对金属Au(Ⅲ)具有很好的传输作用

Abstract:

The transportation behavior of Au(III) through a dispersion supported liquid membrane (DSLM) consisting of tri-n-octylamine in kerosene, supported on the polyvinylidene fluoride membrane (PVDF), was studied. The effects of HCl concentrations in the feed phase, volume ratio of liquid membrane phase to strip phase, and concentrations of KCN in the strip phase were also researched. The results show that gold ion can be transported effectively when the concentration of HCl in the feed phase is 2.0 mol/L, the volume ratio is 40:20, and the concentration of KCN in the strip phase is 0.5 mol/L