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| Preparation of Al-Ca Alloy by Molten-Salt Electrolysis and Analysis of Electrode Process |
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Received:March 25, 2014
Revised:March 26, 2014
Accepted:March 31, 2014
Published Online:August 21, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.09.016 |
| KeyWord:Al-Ca alloy; molten salt electrolysis; cyclic voltammetry; calcium oxide |
| Author | Institution |
| zhangbaoguo |
辽宁科技大学 |
| lijidong |
辽宁科技大学 |
| CAO Wen-liang |
东北大学 |
| ZHANG Ting-an |
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| WANG Yi-yong |
辽宁科技大学 |
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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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