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| Preparation of calcium metal and high purity calcium |
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Received:July 25, 2012
Revised:April 23, 2013
Accepted:August 08, 2012
Published Online:May 16, 2013
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| DOI： |
| KeyWord:high purity calcium; purification; electrolytic method; thermal reduction method; vacuum distillation |
| Author | Institution |
| Hu Zhifang |
Mining, Metallurgy |
| Yin Yanxi |
Mining,Metallurgy Materials Research Institute,General Research Institute for Non-Ferrous Metals;China |
| Jiang Honglin |
Mining,Metallurgy Materials Research Institute,General Research Institute for Non-Ferrous Metals;China |
| Tian Lisen |
Mining,Metallurgy Materials Research Institute,General Research Institute for Non-Ferrous Metals;China |
| Xue Hongxia |
Mining,Metallurgy Materials Research Institute,General Research Institute for Non-Ferrous Metals;China |
| Wang Lijun |
Mining,Metallurgy Materials Research Institute,General Research Institute for Non-Ferrous Metals;China |
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| Abstract: |
| In this paper, the industrial calcium preparation by the method of the electrolytic and the thermal reduction are sketched, and the process, devices and progress of the high purity calcium preparation by the vacuum distillation are emphasized. It is difficult to prepare high purity calcium metal by the electrolytic method or the thermal reduction method. The 99.999% (5N) ultra-high purity calcium can be obtained by the vacuum distillation using the industrial calcium as the raw material. |
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