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根据四氯化钛熔盐电解法的研究现状,本文选择低熔点的47.5％LiCl-37.5％KCl-15％NaCl(摩尔％)系作电解质。为了探讨此体系的优越性和采用它的可行性,对盐系中反应Ti(固)+2TiCl_3(熔)=3TiCl_2(熔)的平衡进行了研究,在此基础上采用60～130安培电解槽,在550～640℃的温度范围内,进行了四氯化钛电解探索性试验,将所获得的指标5等克分子NaCl-KCl系为电解质的电解结果进行了对比考察,证明采用三元系可进行低温电解,在400℃不敞开出炉,并可大幅度地降低金属钛中的含铁量。
According to the research status of molten salt titanium tetrachloride electrolysis, 47.5% LiCl-37.5% KCl-15% NaCl (mol%) with low melting point is selected as electrolyte. In order to explore the superiority of this system and the feasibility of using it, the balance of Ti (solid) + 2TiCl_3 (melt) = 3TiCl_2 (molten) in salt system was studied. On this basis, , In the temperature range of 550 ~ 640 ℃, carried out titanium tetrachloride electrolytic exploratory test, the obtained index 5 and other molecules of NaCl-KCl electrolyte electrolysis results were contrasted to investigate the use of ternary system Low-temperature electrolysis can be carried out at 400 ℃ without opening the furnace, and can significantly reduce the amount of iron in titanium metal.