New kind of imide extractant was used for separating rare earth.The experiments on extraction for rare earth show that it can enrich rare earth better and selectively.

• 合成了一系列新型酰亚胺类萃取剂,稀土元素萃取试验表明,该类试剂萃取稀土元素萃取性能、选择性能较好,烷基酰亚胺萃取稀土镥的好坏与骨架结构有关。