| 熔盐电解氧化钙制备铝钙合金及其电极过程分析 |
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| 引用本文： | 张保国,李继东,曹文亮,张廷安,王一雍.熔盐电解氧化钙制备铝钙合金及其电极过程分析[J].有色金属(冶炼部分),2014(9):59-61. |
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| 作者姓名： | 张保国 李继东 曹文亮 张廷安 王一雍 |
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| 作者单位： | 辽宁科技大学,辽宁科技大学,东北大学,辽宁科技大学 |
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| 基金项目： | 国家自然科学基金资助项目(51204094)；鞍山市科技项目（2012MS02） |
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| 摘 要： | 采用CaCl2-CaF2熔盐体系,氧化钙为原料,液态铝作阴极,成功制备了铝钙合金,利用循环伏安法重点研究了CaCl2-CaF2体系以及添加氧化钙后体系的电化学行为过程。结果表明,在CaCl2-CaF2体系中,除了在阴阳极上分别产生钙和氯气外,还生成了中间产物CaC2;向该体系添加少量氧化钙后,O2-放电生成CO2并起到去极化作用。采用电位控制法监控反电动势的变化研究并测得了氧化钙的加料周期为20min。
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| 关 键 词： | Al-Ca合金 熔盐电解 循环伏安法 氧化钙 |
| 收稿时间： | 2014/3/25 0:00:00 |
| 修稿时间： | 2014/3/26 0:00:00 |
Preparation of Al-Ca Alloy by Molten-Salt Electrolysis and Analysis of Electrode Process |
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| zhangbaoguo,lijidong,CAO Wen-liang,ZHANG Ting-an and WANG Yi-yong.Preparation of Al-Ca Alloy by Molten-Salt Electrolysis and Analysis of Electrode Process[J].Nonferrous Metals(Extractive Metallurgy),2014(9):59-61. |
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| Authors: | zhangbaoguo lijidong CAO Wen-liang ZHANG Ting-an and WANG Yi-yong |
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| Affiliation: | University of Science and Technology Liaoning |
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| Abstract: | Al-Ca alloy was successfully prepared in CaCl2-CaF2 molten salt system with CaO as raw materials and liquid aluminum as cathode. The electrochemical behavior of CaCl2-CaF2 system and CaCl2-CaF2-CaO system were investigated by cyclic voltammetry. The results show that the intermediate product CaC2 is produced in CaCl2-CaF2 system with carbon as electrode besides that chlorine gas is produced at anode and calcium is produced at cathode. Upon adding CaO into CaCl2-CaF2 system, O2- discharges to generate CO2 for depolarization. Lasting for about 20 min, the feeding period of CaO is determined by monitoring variation of back electromotive force through potential control method. |
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| Keywords: | Al-Ca alloy molten salt electrolysis cyclic voltammetry calcium oxide |
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