巯基胺型树脂的合成及其对贵金属离子吸附性能研究

The Syntheses and Adsorption Properties of Chelate Resins with Amino and Mercapto Groups

采用乳液异相反应法,用环硫氯丙烷和氨水反应,合成了一系列含巯基的胺型螯合树脂,研究了它们对Au()、Pd()、Pt()和Ag()等贵金属离子的吸附性能。结果表明,在与Cu()、Zn()和Pb()等过渡金属离子共存下,该类树脂对贵金属离子具有良好的选择吸附性能。

In this paper,several chelate resins were prepared by the reaction of chloromethyl thiirane with ammonia via the heterophase reaction of emultion,and the adsorption properties for Au(Ⅲ),Pd(Ⅱ),Pt(Ⅳ),Ag(Ⅰ),Hg(Ⅱ),Pb(Ⅱ)and Zn(Ⅱ)were also investigated.The results show that the resins possess excellent adsorbability for noble metal ions.In the solution consisting of Ag(Ⅰ),Cu(Ⅱ),Zn(Ⅱ)and Cd(Ⅱ),the resin just only adsorbed Ag(Ⅰ).