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熔鹽電脫氧法制取Ti機(jī)理的研究
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國家重點(diǎn)基礎(chǔ)研究發(fā)展規(guī)劃 (2006AA068128)


Research on Reaction Mechanism of Titanium Preparation by Electro-deoxidation in Molten Salt
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    摘要:

    通過低電壓電解實(shí)驗(yàn)和不同陰極電解對比實(shí)驗(yàn),并結(jié)合循環(huán)伏安曲線研究了熔鹽電脫氧法制取金屬Ti過程中陰極的反應(yīng)機(jī)理。結(jié)果表明,在沒有金屬Ca生成的情況下,TiO2陰極可以直接還原,生成低價鈦氧化物。在正常電解的情況下,陰極進(jìn)行的主要電極反應(yīng)是TiO2的直接電還原反應(yīng),同時在陰極也存在一定的鈣熱還原反應(yīng),只是反應(yīng)強(qiáng)度比較弱

    Abstract:

    The direct electro-deoxidation process of solid titanium dioxide was investigated in molten calcium chloride. This study focused on cathodic reactions of the electrolytic process. Products of low-voltage electrolysis were characterized by XRD. The results indicate that titanium dioxide cathode is reduced, although calcium does not exist in molten salt. The current-time plots of the constant voltage electrolysis using different cathodes demonstrate that direct electrochemical reduction of titanium dioxide is the primary reaction in cathodes; at the same time, faint calcium thermal reduction also exists.

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王 斌,劉奎仁,陳建設(shè).熔鹽電脫氧法制取Ti機(jī)理的研究[J].稀有金屬材料與工程,2011,40(11):2014~2017.[Wang Bin, Liu Kuiren, Chen Jianshe. Research on Reaction Mechanism of Titanium Preparation by Electro-deoxidation in Molten Salt[J]. Rare Metal Materials and Engineering,2011,40(11):2014~2017.]
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  • 收稿日期:2010-11-22
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