【摘要】 <正> 以交联聚苯乙烯为母体的大孔螯合树脂的合成及其应用已有文献报道,我们根据光亮镀镍工艺的特定要求,合成了4种对Cu²⁺具有良好吸附性能的Schiff碱大孔新型螯合树脂。更多还原

【Abstract】 Four macro-porous chelate resins of Schiff base were synthesized and their adsorbabilities for seven metal ions were studied. These resins are poly-N-(3-methoxy-salicylidene) vinyl aniline (PMSVA) , poly-N-(2-hydroxy-l-naphthylmethylene) vinyl aniline (PHNVA) ,poly-N-salicylidene vinyl aniline (PSVA) and poly-N-salicylidene vinyl benzylamine (PSB). It is shown by the experiments that the adsorption properties of the four resins for Cu2+ are satisfactory. In addition, the effects of the structures of the chelate resins on their adsorption properties for the metal ions are discussed and the adsorption rule of the resins for Cu2+ was found. On the basis of the rule, a new method for removing cu2+ selectively from the solution of electroplating nickel was drawn up by using these chelate resins and satisfactory results were obtained.更多还原