| YbCl3－CaCl2－LiCl三元体系相图的研究 |
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| 引用本文： | 宋秀芹,郑朝贵. YbCl3－CaCl2－LiCl三元体系相图的研究[J]. 北京大学学报(自然科学版), 1995, 31(4): 439 |
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| 作者姓名： | 宋秀芹 郑朝贵 |
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| 作者单位： | 北京大学化学系，北京，100871 |
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| 摘 要： | 本文利用DTA研究了YbCl3－CaCl2－LiCL三元体系相图。发现该相图有对应于YbCL3、CaCL2、LiCL和Li3YbCL6的四个液相面，五条二次结晶线，一个三元低共熔点E(64.0%YbCL3，15.2%CaCL2, 20.8%LiCL，408℃)，一个三元转熔点P(55.2%YbCL3，20.2%CaCL2，24.6%LiCL，448℃）。相应的四相平衡反应为：L＝YbCL3＋YbCL6＋CaCL2，L＋LiCL＝Li3YbCL6＋CaCL2。
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| 关 键 词： | YbCl3 YbCl3－CaCl2-LiCl三元体系 相图 |
| 收稿时间： | 1994-05-19 |
An Investigation on the Phase Diagram of Ternary System YbCl_3- CaCl_2-LiCl |
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| SONG Xiuqin,ZHENG Chaogui. An Investigation on the Phase Diagram of Ternary System YbCl_3- CaCl_2-LiCl[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 1995, 31(4): 439 |
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| Authors: | SONG Xiuqin ZHENG Chaogui |
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| Affiliation: | Department of Chemistry, Peking University, Beijing, 100871 |
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| Abstract: | The phase diagram of ternary system YbCl3-CaCl2-LiCl has been determined by means of DTA. It was found that there are four surfaces corresponding to the primary crystallization of YbCl3, CaCl2, LiCl and Li3YbCl6 respectively and five univariant lines related to the secondary crystallization in this system. Temary eutectic point E(64.0% YbCl3, 15.2%CaCl2, 20.8%LiCl, 408℃) and ternary peritectic point P(55.2% YbCl3, 20.2%CaCl2, 24.6%LiCl, 448℃) were observed. The two equilibrium reactions with four phases occurred in this system are: L=YbCl3+Li3YbCl6+CaCl2 L+LiCl=Li3YbCl6+CaCl2 |
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| Keywords: | YbCl_3 YbCl_3- CaCl_2-LiCl system phase diagram |
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