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由聚环硫氟丙烷与多乙烯多胺反应制得的聚合物(PB)再与环硫丙烷反应,合成了四种以聚硫醚为主链的异丙巯基胺树脂(PBM_1-4)。树脂对Au~(3+)、Pd~(2+)、Pt~(4+)、Ag~+和Hg~(2+)等离子具有强的吸附能力,对Cu~(2+)次之,对Zn~(2+)和Pb~(2+)很弱。树脂对贵金属具有高的选择性,能从含Au~(3+)、Cr~(3+)、Co~(2+)、Ni~(2+)、Cu~(2+)、Mn~(2+)、Zn~(2+)和Fe~(3+)的溶液中定量吸附Au~(3+)而不吸附其它离子。
The polymer (PB) prepared by the reaction between poly (cyclic thio-fluoropropane) and polyethylene polyamine reacted with epithiopropane to synthesize four kinds of isopropylamine fumarate resin (PBM_1-4) with polythioether as main chain. The resin has strong adsorption capacity for Au ~ (3 +), Pd ~ (2 +), Pt ~ (4 +), Ag ~ + and Hg ~ (2+) Right Zn ~ (2+) and Pb ~ (2+) is weak. The resin has a high selectivity to noble metal and can be selected from the group consisting of Au3 +, Cr3 +, Co2 +, Ni2 +, Cu2 +, Mn ~ ( 2 +), Zn ~ (2+) and Fe ~ (3+) solution, without adsorbing other ions.