| 化学气相传输法分离二元混合重稀土氧化物 |
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| 引用本文： | 孙艳辉,王之昌,郭雷.化学气相传输法分离二元混合重稀土氧化物[J].应用化学,2003,20(6):511-0. |
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| 作者姓名： | 孙艳辉 王之昌 郭雷 |
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| 作者单位： | 河北理工学院，东北大学，中科院沈阳应用生态研究所，中国科学院沈阳应用生态研究所 |
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| 基金项目： | 国家自然科学基金 ( 5 95 740 2 05 98740 0 8)，河北省教委博士基金资助项目 |
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| 摘 要： | 稀土气态配合物;化学气相传输法分离二元混合重稀土氧化物
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| 关 键 词： | 稀土气态配合物 化学气相传输法分离二元混合重稀土氧化物 |
| 文章编号： | 1000-0518(2003)06-0511-05 |
| 收稿时间： | 2009-06-29 |
| 修稿时间： | 2002年9月18日 |
Separation of Rare Earth Elements from Their Binary Oxide Mixtures via Chemical Vapor Transport Reaction |
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| SUN Yan Hui a,WANG Zhi Chang b,GUO Lei c.Separation of Rare Earth Elements from Their Binary Oxide Mixtures via Chemical Vapor Transport Reaction[J].Chinese Journal of Applied Chemistry,2003,20(6):511-0. |
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| Authors: | SUN Yan Hui a WANG Zhi Chang b GUO Lei c |
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| Institution: | SUN Yan Hui a*,WANG Zhi Chang b,GUO Lei c |
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| Abstract: | Separation of the neighboring rare earth elements from their binary oxide mixtures Ho 2 O 3 Er 2 O 3 , Er 2 O 3 Tm 2 O 3 , Tm 2 O 3 Yb 2 O 3 and Yb 2 O 3 Lu 2 O 3 has been carried out via the chemical vapor transport reaction based on the difference in thermodynamic characteristics of their vapor complexes LnAl 3 Cl 3 n +3 . The results showed that most rare earth chlorides of Ho, Er, Tm, Yb and Lu are deposited in the reactor zone of temperature ranged from 800 to 1 050 K. The chlorides of rare earch with small atomic number are preferably deposited in the reactor zone of higher temperature and rice versa . The largest separation factors expressed as molar ratio for the resulting chlorides are SF Er/Ho =1 41, SF Er/Tm =1 60, SF Tm/Yb =1 91, SF Lu/Yb =1 37. |
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| Keywords: | rare earth oxide chemical vapor transport reaction separation rare earth vapor complexes |
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