提出了一种可用于乳状液膜分离稀土的油溶性氨羧络合剂的合成方法，讨论了反应物摩尔比、反应温度、溶剂、提纯方法等因素的影响 A new method for the synthesis of oil-soluble ammonia-carboxyl complexing agent which can be used for the separation of rare earth from emulsion liquid membrane is proposed. The effects of molar ratio of reactants, reaction temperature, solvents and purification methods are discussed