| 两相滴定法研究P_(507)萃取La~(3+)、Ce~(3+)、Pr~(3+)、Nd~(3+)、Sm~(3+)的机理 |
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| 引用本文： | 李俊然,李标国,黄春辉,黄朝表.两相滴定法研究P_(507)萃取La~(3+)、Ce~(3+)、Pr~(3+)、Nd~(3+)、Sm~(3+)的机理[J].北京大学学报(自然科学版),1989(2). |
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| 作者姓名： | 李俊然 李标国 黄春辉 黄朝表 |
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| 作者单位： | 北京大学稀土化学研究中心
(李俊然，李标国，黄春辉)，北京大学稀土化学研究中心(黄朝表) |
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| 摘 要： | 本文介绍用两相滴定法测定在正辛烷中2-乙基己基膦酸单(2-乙基己基)酯(代号P_(507))萃取La~(3+)、Ce~(3+),Pr~(3+)、Nd~(3+)、Sm~(3+)的萃合物组成及相应的萃取反应常数K_M。
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| 关 键 词： | 2-乙基己基膦酸单 (2-乙基己基)酯 两相滴定 萃合物 |
Study on the Extraction Mechanism of La~(3+),Ce~(3+),Pr~(3+),Nd~(3+) and Sm~(3+) with F_(507) by Two-phase Titration Method |
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| Li Junran,Li Biaoguo,Huang Chunhui,Huang Chaobiao.Study on the Extraction Mechanism of La~(3+),Ce~(3+),Pr~(3+),Nd~(3+) and Sm~(3+) with F_(507) by Two-phase Titration Method[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1989(2). |
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| Authors: | Li Junran Li Biaoguo Huang Chunhui Huang Chaobiao |
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| Affiliation: | Research Centre of Rare Earth Chemistry |
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| Abstract: | The compositions of the extracted complexes of La3 , Ce3 + , Pr3+, Nd3+ and Sin3+ with 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (P507) in n-octane and the related apparent extraction equilibrium constants KM have been determined by two-phase titration. |
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| Keywords: | Two-phase titration Extracted complex 2-Ethylhexylphosphonic acid mono-2-ethylhexyl ester |
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