一、引言高分子胺对金属格阴离子的萃取与阴离子交换树脂对金属絡阴离子的吸附有某些类似之处,所以高分子胺通常又被称为液态阴离子交换剂。由于高分子胺对金属的萃取具有高的分配系数,快的分配速度和良好的选择性,因此,近年来,无論在理論研究或实际应用方面都得到了迅速的发展。然而,目前大量的工作都集中在核燃料及稀有金属的提取方 I. INTRODUCTION Polyamines are also commonly referred to as liquid anion exchangers because they have some similarities with the extraction of metal anions and anion exchange resins. In recent years, polymer amines have been rapidly developed both theoretically and practically due to their high partition coefficient, fast partitioning rate and good selectivity. However, a great deal of work has so far focused on the extraction of nuclear fuel and rare metals