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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 17    Special 1    November 2007

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Effect of TiO2 cathode performance on preparation of Ti by electro-deoxidation
DU Ji-hong(杜继红)1,XI Zheng-ping(奚正平)1,LI Qing-yu(李晴宇)1,
XU Qian(许  茜)2,TANG Yong(唐  勇)1, 2,LI Zheng-xian(李争显

1. Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China;
2. School of Materials Science and Metallurgy, Northwestern University, Shenyang 110006, China

Abstract:To resolve the problem of low current efficiency and low reaction rate when preparing metal by electro-deoxidization method, various contents of CaO and CaCO3 were added into the TiO2 powder, which were compacted into pellets and sintered, and then conducted as the cathode. The morphology and contents of the cathode and products were studied by scanning electron microscopy and X-ray diffractometry, the effect of the additives were studied. The results show that formation of calcium titanate and change of microstructure within the cathode enhance the velocity of the direct electrochemical reduction of solid TiO2 to Ti.

 

Key words: titanium; molten salt; electro-deoxidization; additive; electrolysis activity

ISSN 1672-7029
CN 43-1423/U

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