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陰極電導(dǎo)率和孔隙率對(duì)熔鹽電解鈦精礦脫氧過(guò)程的影響
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重慶大學(xué)材料科學(xué)與工程學(xué)院,重慶大學(xué)材料科學(xué)與工程學(xué)院,重慶大學(xué)材料科學(xué)與工程學(xué)院,重慶大學(xué)材料科學(xué)與工程學(xué)院

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國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃（973計(jì)劃）


Effect of Electrical Conductivity and Porosity of Cathode on Electro-Deoxidation Process of Ilmenite Concentrate
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    摘要:

    陰極的性能通常是和電解過(guò)程與電解效率有著密切的關(guān)系。本文中測(cè)量了焙燒溫度對(duì)鈦精礦陰極的電導(dǎo)率的影響。結(jié)果表明焙燒溫度對(duì)鈦精礦陰極導(dǎo)電性影響很大。鈦精礦陰極電阻率隨著焙燒溫度升高和接觸面積的增加而增大。另外本文也研究了陰極孔隙率對(duì)熔鹽電解制備Ti-Fe合金還原過(guò)程的影響。結(jié)果表明陰極的孔隙率對(duì)還原過(guò)程有著直接的影響?？紫堵实脑黾佑欣谛纬芍虚g化合物CaTiO3，從而改善電流效率。

    Abstract:

    The performance of the cathode always has a close relationship with the electro-deoxidation process and its current efficiency. In this paper, the effect of sintering temperature on the electrical resistivity of an ilmenite concentrate cathode was measured. The results showed that the sintering temperature had a significant effect on the electrical conductivity of the cathode. The electrical resistivity of ilmenite concentrate cathode decreased 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 revealed that the porosity of ilmenite concentrate cathode had a direct effect on the reduction process. The increasing of porosity was beneficial to the formation of intermediate product (CaTiO3) and improvement of the current efficiency.

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劉許旸,扈玫瓏,白晨光,呂學(xué)偉.陰極電導(dǎo)率和孔隙率對(duì)熔鹽電解鈦精礦脫氧過(guò)程的影響[J].稀有金屬材料與工程,2017,46(5):1176~1182.[Xuyang Liu, Meilong Hu, Chenguang Bai, Xuewei Lv. Effect of Electrical Conductivity and Porosity of Cathode on Electro-Deoxidation Process of Ilmenite Concentrate[J]. Rare Metal Materials and Engineering,2017,46(5):1176~1182.]
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  • 收稿日期:2015-03-09
  • 最后修改日期:2015-07-21
  • 錄用日期:2015-10-13
  • 在線發(fā)布日期: 2017-09-27
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