用络合-超滤联合法回收过渡金属离子

RECOVERY OF TRANSITION METAL IONS BY COMPLEX FORMATION-ULTRAFILTRATION

本文论述了络合-超滤联合法工艺过程及其原理,根据聚络合物在溶液中生成的不分级与分级的两种情况,推导了膜对金属离子的选择性计算公式,分析了络合-超滤联合法分离效果的各种影响因素。本文所得的结论,对于从海水及工业污水中回收过渡金属离子的络合-超滤联合法的实际应用,具有一定的参考价值。

This paper deals with the technological process of complex formation-ultrafiltration method and derives the calculation of membrane selectivity according to two conditions of polycomplex formation in the solutions of stepwise and nonstepwise. Various factors affecting the separation effect of complex formatibn-ult raf ilt rat ion method are analyzed. The conclusions of this paper will be useful for practical application of this method in the recovery of transition metal ions from salt water and industrial waste.