| AlF3添加剂和焙烧温度对铝电解炭阳极过电位的影响 |
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| 引用本文： | 赖延清,秦庆伟,李庆余,李劼,刘业翔.AlF3添加剂和焙烧温度对铝电解炭阳极过电位的影响[J].中国有色金属学报,2003,13(3):764-768. |
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| 作者姓名： | 赖延清 秦庆伟 李庆余 李劼 刘业翔 |
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| 作者单位： | 中南大学,冶金科学与工程学院,长沙,410083 |
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| 基金项目： | 国家重点基础研究发展规划资助项目 (G19990 6 490 3) |
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| 摘 要： | 在实验室制备各类AlF3掺杂试验阳极，在测试其基本物理化学性能的基础上，采用“改进断电流法”进行阳极过电位测试，研究AlF3添加剂和阳极焙烧温度对阳极过电位的影响。结果表明：在一定条件下，阳极中添加AlF3既可降低阳极的空气／CO2反应活性，也可降低阳极过电位；受高温脱S等因素的影响，阳极的电化学活性及其空气／CO2反应活性并未随着焙烧温度的提高相应降低。
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| 关 键 词： | 阳极过电位 添加剂 焙烧温度 炼铝 电解 AlF3 改进断电流法 |
| 文章编号： | 1004-0609(2003)03-0764-05 |
| 修稿时间： | 2002年5月24日 |
Effect of AlF3 dopant and baking temperature on overpotential of carbon anode in aluminium electrolysis |
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| LAI Yan-qing,QIN Qing-wei,LI Qing-yu,LI Jie,LIU Ye-xiang.Effect of AlF3 dopant and baking temperature on overpotential of carbon anode in aluminium electrolysis[J].The Chinese Journal of Nonferrous Metals,2003,13(3):764-768. |
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| Authors: | LAI Yan-qing QIN Qing-wei LI Qing-yu LI Jie LIU Ye-xiang |
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| Abstract: | The anode samples doped with different content of AlF 3 were prepared. Based on their physical and chemical properties test and anodic overpotential measure by so called modified current interruption technique, the effects of AlF 3 dopant and baking temperature on the overpotential of carbon anode were studied. The results show that, the overpotential of carbon anodes as well as their air/CO 2 reactivity can be decreased by doping with certain content of AlF 3; resulting from some factors such as the elimination of S at high temperature, the decreases of anodic overpotential and air/CO 2 reactivity with temperature increase have not been found as previous reported. |
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| Keywords: | anodic overpotential AlF 3 dopant baking temperature aluminum electrolysis |
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