阴极的性能通常是和电解过程与电解效率有着密切的关系.测量了焙烧温度对钛精矿阴极电导率的影响.结果表明焙烧温度对钛精矿阴极导电性影响很大.钛精矿阴极电阻率随着焙烧温度升高和接触面积的增加而增大.另外也研究了阴极孔隙率对熔盐电解制备Ti-Fe合金还原过程的影响.结果表明阴极的孔隙率对还原过程有着直接的影响.孔隙率的增加有利于中间化合物CaTiO3的形成,从而改善电解过程中的电流效率.
The performance of the cathode is always closely related to the electro-deoxidation process and its current efficiency.In this work,the effect of sintering temperature on the electrical resistivity of an ilmenite concentrate cathode was measured.The results show that the sintering temperature has a significant effect on the electrical conductivity of the cathode.The electrical resistivity of the ilmenite concentrate cathode decreases with increasing of the sintering temperature and increasing of the contact area.Besides,the influence of the cathode porosity on electrochemical process during preparation of Ti-Fe alloy in molten salt was studied.The results also reveal that the porosity of ilmenite concentrate cathode directly affects the electro-deoxidation process.The increasing of porosity is beneficial to the formation of intermediate product (CaTiO3) and improvement of the current efficiency.
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