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中文摘要：
采用熔盐电脱氧法，在CaCl2熔盐中以烧结的ZrO2为阴极，石墨棒为阳极，温度为900℃，电压为3．1V，制备出了金属锆。借助SEM和XRD研究了阴极的形貌及其对电解反应的影响，初步探讨了电脱氧反应的机理。结果表明，电解过程中脱氧速度不均匀，ZrO2电极的还原是由外向内，由高价向低价再到金属而分步进行的。电解10h后，金属锆含量为93％（质量分数，下同），由于金属中存在固溶氧，即使延长电解时间，氧也不能完全脱除。
英文摘要：
Metal zirconium was prepared by electro-deoxidization method. Using CaCl2 molten as electrolyte, sintered ZrO2 pallets as cathode and graphite rod as anode, the pallets were electrolyzed at 900 ℃ at 3.1 V for 8, 10 and 12 h. The mechanism of electro-deoxidization of ZrO2 was studied preliminarily. It was found that the morphology of cathode pallets effect the forming process of products. The process of electro-deoxidization of ZrO2 in the molten salt was conducted step by step, from exterior of cathode to its interior and from high valence oxide to low valence oxide until to obtain metal. The metal zirconium content of the product was up 93wt% on electrolyted for 10 h, mainly because was the existence of Zr-O solid solution in the pallet, but even if the electrolyze time was longer,the solid solution of O in Zrconium counnot be deoxidized completely.
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