亚氨基二乙醛肟树脂的合成及其性能的研究

Synthesis and characterization of an iminodialdehydeoxime resin

介绍了苯乙烯二乙烯基苯为基体的亚氨基二乙醛肟树脂(IDAO)的合成,研究了树脂对金属离子的吸附性能,并讨论了pH对吸附的影响以及吸附的动力学效应。结果表明 IDAO 树脂对重金属离子(Cu(Ⅱ)、Co(Ⅱ)、Ni(Ⅱ)、Pb(Ⅱ)、Zn(Ⅱ)等),特别是高价重金属离子(Fe(Ⅲ)、Cr(Ⅳ)、V(Ⅴ))有很强的吸附作用,而对碱金属、碱土金属不吸附。

A new kind of chelating resins:iminodialdehydeoxime resins(IDAO)has been synthesized,and the selectivity of chelating resins for manymetal ions has been studied.The pH dependenceis determined and the resin-metal adsorption kine-tics are also studied.The resins show a strongaffinity for heavy metal ions(e.g.Cu(Ⅱ),Co(Ⅱ),Ni(Ⅱ),Pb(Ⅱ),Zn(Ⅱ),etc.),especially forhigh valence heavy metal ions(Fe(Ⅲ),Cr(Ⅵ),V(Ⅴ)).But it exhibits no affinity for alkali oralkaline earth metals.