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采用新型的大孔球状聚氯乙烯与乙二胺、二乙烯三胺、三乙烯四胺反应,合成多乙烯多胺树脂,并研究了多乙烯多胺树脂对Au~(3+)、Ag~+、Hg~(2+)、Cu~(2+)、Zn~(2+)、Pb~(2+)、Cd~(2+)等金属离子的吸附性能。结果表明,多乙烯多胺树脂对Ag~+、Hg~(2+)的吸附容量较高,吸附率也较高,分别达97.1％和98.4％,对Cu~(2+)的吸附容量次之,对Zn~(2+)、Pb~(2+),Cd~(2+)的吸附容量较低。该树脂对Hg~(2+)、Ag~+的吸附选择性较好,对Au~(3+)的动态吸附率达98.2％。因此多乙烯多胺树脂具有一定的应用前景。
Polyethylene polyamine resin was synthesized by the reaction of macroporous spherical polyvinyl chloride with ethylenediamine, diethylenetriamine and triethylenetetramine, and the effects of polyethylene glycol polyamine on Au ~ (3 +), Ag ~ +, Hg2 +, Cu2 +, Zn2 +, Pb2 +, Cd2 + and other metal ions. The results showed that the adsorption capacity of Ag +, Hg 2+ was higher and the adsorption rate was higher, reaching 97.1% and 98.4% respectively. The adsorption capacity of Cu 2+ The adsorption capacity of Zn ~ (2 +), Pb ~ (2 +) and Cd ~ (2+) is low. The resin has good adsorption selectivity to Hg ~ (2 +) and Ag ~ +, and has a dynamic adsorption rate of 98.2% to Au ~ (3+). Therefore, polyethylene polyamine resin has a certain application prospects.