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| Study of Preparation Technology of High Purity Europium |
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Received:November 16, 2013
Revised:November 18, 2013
Accepted:November 19, 2013
Published Online:May 23, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.06.015 |
| KeyWord:high purity europium metal; lanthanum-thermal reduction; vacuum distillation |
| Author | Institution |
| Cheng Wei |
湖南稀土金属材料研究院 湖南 长沙 |
| Huang Mei-song |
湖南稀土金属材料研究院 湖南 长沙 |
| Yang Lu-hui |
湖南稀土金属材料研究院 湖南 长沙 |
| Jia Shuai-guang |
湖南稀土金属材料研究院 湖南 长沙 |
| YANG Tao |
湖南稀土金属材料研究院 |
| BAO Xin-jun |
湖南稀土金属材料研究院 |
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| Abstract: |
| The thermodynamics and kinetics to prepare high purity europium by lanthanum-thermal reduction were investigated. The preparing parameters were determined. The effecting factors on purity and stored method were discussed. The results show that europium metal with purity of 99.983% is prepared by reduction and vacuum distillation at 1 100 ℃ in tantalum sheet furnace at vacuum degree of 0.001 Pa with 5N Eu2O3 as raw material and self-made lanthanum metal as reductant. |
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