一、引言液膜法[1]具有高效、快速、简便、选择性好等优点,尤其适合于稀溶液中离子的分离和浓缩。它是开发离子吸附型稀土矿的一项有针对性的新工艺。应用这个方法分离稀土,可望在不久的将来完全革新现有的离子吸附型稀土矿的生产路线。这对于充分利用我国和江西 I. INTRODUCTION The liquid membrane method [1] has the advantages of high efficiency, rapidity, simplicity, good selectivity, and is especially suitable for the separation and concentration of ions in dilute solution. It is a targeted new technology for developing ion-adsorbed rare earth minerals. Using this method to separate rare earths, it is expected that the existing ion-adsorbing rare earth ore production lines will be completely innovated in the near future. This is for making full use of our country and Jiangxi