| 长链氨羧络合剂萃取稀土饵 |
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| 引用本文： | 郭金波,张桂英,张周.长链氨羧络合剂萃取稀土饵[J].化学研究,2005,16(2):19-21. |
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| 作者姓名： | 郭金波 张桂英 张周 |
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| 作者单位： | 洛阳师范学院,化学系,河南,洛阳,471022 |
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| 摘 要： | 研究了长链氨羧络合剂N,N′-二(十二烷基)乙二胺二乙酸钠(Na2R2Y)的氯仿溶液萃取稀土饵的行为;考察了溶液酸度、络合剂浓度、相比和温度对萃取率的影响.用摩尔比法测定了Na2R2Y与Er3+的络合摩尔比为1∶1;结果表明,Na2R2Y的氯仿溶液对饵的萃取率随络合剂浓度的增大而增大,随温度的升高而降低.
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| 关 键 词： | 氨羧络合剂 萃取 N N′-二(十二烷基)乙二胺二乙酸 螯合物 饵 |
| 文章编号： | 1008-1011(2005)02-0019-03 |
| 修稿时间： | 2004年12月26 |
Extraction of Er(Ⅲ) with a Long-Chain Trilon |
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| GUO Jin-Bo,ZHANG Gui-ying,ZHANG Zhou.Extraction of Er(Ⅲ) with a Long-Chain Trilon[J].Chemical Research,2005,16(2):19-21. |
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| Authors: | GUO Jin-Bo ZHANG Gui-ying ZHANG Zhou |
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| Abstract: | Extraction behavior!of Er(Ⅲ) with a long-chain trilon(Na_ 2R_ 2Y) in chloroform was investigated. Complex ratio between Na_ 2R_ 2Y and Er 3+ was determined as 1∶1 by mole ratio method. The influence of acidity,concentration of Na_ 2R_ 2Y ,phase-radio and extraction temperature were studied. The results indicate that the extraction percentage of Er 3+ increases with the increase of concentration of Na_ 2R_ 2Y and the distribution ratio lgD decreases linearly with the increase of temperature. |
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| Keywords: | trilon extraction N N′-di(dodecyl)ethylenediamine-di-acetic acid chelate erbium |
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