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首次报道了用双乙烯酮与氨基聚苯乙烯缩合制得N-乙酰乙酰苯胺基螯合树脂的方法。试验树脂对十几种金属离子的螯合性能,结果表明,pH=4.0时树脂对Be~(2+)有良好的吸附选择性,其吸附容量为0.43m mol/g干树脂。用6mol/L H_2SO_4可从树脂柱上定量洗脱出Be~(2+)。
For the first time, a method for producing acetoacetanilide chelate resin by condensation of diketene and aminopolystyrene was reported. The chelating properties of a dozen of metal ions were tested. The results showed that the resin has good adsorption selectivity to Be 2+ at pH = 4.0, and the adsorption capacity is 0.43 m mol / g dry resin. Be 2+ can be quantitatively eluted from the resin column with 6 mol / L H_2SO_4.