Direct electrochemical extraction of Ti5Si3 from titanium/silicon-containing metal oxide compounds in molten CaCl2
Direct electrochemical extraction of Ti5Si3 from pressed cathode pellets comprising of powdered titanium/silicon-containing metal oxide compounds was investigated by using molten salt electro-deoxidation technology.Three groups of mixtures including TiO2 mixed with SiO2,Ti-bearing blast furnace slag (TBFS) mixed with TiO2,and TBFS mixed with high-titanium slag (HTS) were prepared at the same stoichiometric ratio (Ti∶Si =5∶3) corresponding to the target composition of Ti5Si3,and used as the starting materials in this experiment,respectively.The pressed porous cylindrical pellet of the titanium/silicon-containing compounds served as a cathode,and two different anode systems,i.e.the inert solid oxide oxygen-ion-conducting membrane (SOM)-based anode system and graphite-based anode system were used contrastively.The electrochemical experiment was carried out at 900-1050 ℃ and 3.0-4.0 V in molten CaCl2 electrolyte.The results show that the oxide components were electro-deoxidized effectively and Ti5Si3 could be directly extracted from these complex titanium/silicon-containing metal oxide compounds.
Electro-deoxidation oxide compounds Ti5Si3 molten salts SOM
Zou Xingli Lu Xionggang Xiao Wei Zhou Zhongfu Zhong Qingdong Ding Weizhong
Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai University, Shanghai Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai University, Shanghai
国际会议
上海
英文
208-208
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）