| 冠醚B15C5萃取分离锂同位素的阴离子效应 |
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| 引用本文： | 盛怀禹,李树森,陈耀焕,金品利,蔡起秀.冠醚B15C5萃取分离锂同位素的阴离子效应[J].有机化学,1984,4(3):217-220. |
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| 作者姓名： | 盛怀禹 李树森 陈耀焕 金品利 蔡起秀 |
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| 作者单位： | 中国科学院上海有机化学研究所，中国科学院上海有机化学研究所，中国科学院上海有机化学研究所，中国科学院上海有机化学研究所，中国科学院上海有机化学研究所 |
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| 摘 要： | 本文研究了B15C5冠醚萃取锂盐时,不同阴离子对体系的同位素分离效应的影响。结果表明,阴离子在冠醚萃取过程中不仅对萃取络合物的稳定性有显著影响,而且阴离子半径及软度越大时,萃取体系的锂同位素分离系数(α_(LI))也越大。
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| 关 键 词： | 冠醚 锂同位素 同位素分离法 溶剂萃取 |
Effect of Anions on Extractive Separation of Lithium Isotopes by B15C5 |
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| Sheng Huaiyu,Li Shusen,Chen Yaohuan,Jin Pingli,Cai Qixiu.Effect of Anions on Extractive Separation of Lithium Isotopes by B15C5[J].Chinese Journal of Organic Chemistry,1984,4(3):217-220. |
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| Authors: | Sheng Huaiyu Li Shusen Chen Yaohuan Jin Pingli Cai Qixiu |
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| Institution: | Sheng Huaiyu,Li Shusen,Chen Yaohuan,Jin Pingli,Cai Qixiu Shanghai Institute of Organic Chemistry,Academia Sinica |
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| Abstract: | The isotopic effect in the extraction of lithium by B15 C5(mono-benzo-15-crown-5) is reported in this paper.It is found that the anions have considerable effect onthe isotopic separation of lithium of the system.The bigger and softer the anions are,thehigher the isotopic separation coefficient of the solvent system will be.This phenomenoncan be explained by the nucleophilicity and the difference of the softness of anions.Themetal-crown interaction is hampered as the nucleophilicity of the anion is enhanced,andthe stability of the Li-complex is consequently decreased. |
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| Keywords: | crown ether compounds lithium isotopes isotope separation solvent extraction |
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