几种新型含氮螯合树脂的合成及其性能的研究

Studies on syntheses and properties of some new nitrogen-containing chelate resins

研究了4种具有不同骨架和不同功能基的新型含氮螯合树脂的合成。交联聚苯乙烯骨架的胍基树脂(SG)、氨基胍树脂(SGN)、交联聚甲基丙烯酸环氧丙酯的胍基树脂(GG)、氨基胍树脂(GGN)。4种树脂在很宽的盐酸浓度范围(0.1～6 mol/L)均能定量吸着溶液中100μg 的金,吸着率为100%。树脂也可用于金、铂、钯的富集。胍基类树脂对 Au^(3+)的吸附容量近400 mg/g,氨基胍类树脂为750 mg/g左右。

Four new chelate resins containing guanidine(SG,GG)or aminoguanidine(SGN,GGN)havebeen prepared.They are based on crosslinkedpolystyrene or crosslinked polyglycidylmethacryl-ate.Gold(Ⅲ)can be adsorbed quantitatively byall four resins in 0.1～6mol/L HCl.The sorptioncapacities of guanidine resin(SG)and aminogua-nidine resin(SGN)are 400mg Au/g resin and750mg Au/g resin,respectively.