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铁的化合物对镁电解有不良影响,因此、在原料进入电解槽之前净化除铁是很重要的问题。虽然最近研究出了一些新的减少铁含量的方法,但在目前所知的除铁方法中最有效的仍然是化学法和电解法。本文研究了熔体中铁初始浓度对净化速度的影响;熔体间断和连续除铁净化过程的特点;确定出了制作阴极的材料。在氯盐熔体中铁主要以氯化物FeCl_2(约75～80％),FeCl_3和氧化物FeO、Fe_2O_3等
Iron compounds have a detrimental effect on magnesium electrolysis and therefore it is an important issue to purify the iron before it enters the cell. Although some new methods for reducing iron content have been recently developed, the most effective methods of iron removal known to date are still chemical and electrolytic methods. In this paper, the influence of the initial concentration of iron in the melt on the purification rate, the characteristics of the melt discontinuity and the continuous iron removal and purification process, and the fabrication of the cathode material were determined. In the chloride salt melt iron mainly chloride FeCl_2 (about 75 ~ 80%), FeCl_3 and oxides FeO, Fe_2O_3, etc.