对工业纯电解钕分别进行了区熔提纯、固态电迁移提纯和区熔－电迁移联合法提纯的实验研究．结果表明：这三种提纯方法在分离金属钕中的Ｆｅ、Ｃ、Ｓｉ、Ｍｏ等杂质方面各有特色，而区熔－电迁移联合法对金属钕中的主要有害元素Ｃ、Ｓｉ、Ｍｏ的提纯则更为有效、快速． The industrial pure electrolysis of neodymium were zone melting purification, solid state electromigration and zone melting - electromigration combined experimental purification method. The results show that these three purification methods have their own characteristics in the separation of Fe, C, Si, Mo and other impurities in the metal neodymium. However, the combination of the zone melting and electromigration methods is not suitable for the determination of C, Si and Mo in the metallic neodymium Purification is more effective and faster.