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| Dissolution Behavior of CaF2 and Its Impacts on Magnesium Aggregation in NaCl-KCl-MgCl2 Melt |
| Received:February 09, 2017 Revised:February 14, 2017 |
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| DOI：doi：10.3969/j.issn.1007-7545.2017.06.005 |
| KeyWord:CaF2; NaCl-KCl-MgCl2; dissolution behaviors; magnesium aggregation |
| Author | Institution |
| Zhu Fu-xing |
攀钢集团研究院有限公司 |
| Jiang Bo-wei |
攀钢集团司钛业有限责任公司,四川,攀枝花 |
| Ma Shang-run |
攀钢集团研究院有限公司 |
| Qiu Ke-Hui |
成都理工大学材料与化学化工学院,四川,成都 |
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| Abstract: |
| Dissolution behavior of CaF2 and its impacts on magnesium aggregation in NaCl-KCl-MgCl2 melt were investigated by XRD and gas-cooled cathode. The results show that CaCl2 and MgF2 are obtained through reaction between MgCl2 and CaF2 in melts. Concentration of fluoride and calcium ions gradually rises with increase of CaF2 addition, but increment of fluoride ions is slower than that of calcium ions. Mg2OFCl and Mg2OF2 are produced via reaction of CaF2 with MgO, which reduces influence of magnesium aggregation by MgO, and magnesium presents laminated structure in cathode. Surface tension of melts gradually drops with increasing addition of CaF2 due to formation of CaCl2. |
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