目前,工业上广泛采用氯化物体系熔盐电解法制取稀土金属,但电流效率低,一般只有40％左右。稀土金属在熔盐中的溶解损失是电流效率低的重要原因之一,关于这方面的研究虽有些报道,但多限于单一稀土金属在自身熔盐中的溶解。在文献的基础上,我们进一步研究了混合稀土金属(RE)在RECl_3-KCl熔体中的溶解损失及LiCl、NaCl、 Currently, the industry widely used molten salt electrolysis chloride system of rare earth metals, but the current efficiency is low, generally only about 40%. The dissolution loss of rare earth metal in molten salt is one of the important reasons for the low current efficiency. Although some reports on this aspect have been reported, it is mostly limited to the dissolution of a single rare earth metal in its own molten salt. Based on the literature, we further studied the dissolution loss of mixed rare earth metal (RE) in RECl_3-KCl melt and the effects of LiCl, NaCl,