| 非离子表面活性剂TX114浊点萃取D2EHPA的规律 |
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| 引用本文： | 黄焱,秦炜,丁昱文,戴猷元.非离子表面活性剂TX114浊点萃取D2EHPA的规律[J].化工学报,2008,59(2):393-397. |
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| 作者姓名： | 黄焱 秦炜 丁昱文 戴猷元 |
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| 作者单位： | 化学工程联合国家重点实验室(清华大学),清华大学化学工程系,北京,100084;化学工程联合国家重点实验室(清华大学),清华大学化学工程系,北京,100084;化学工程联合国家重点实验室(清华大学),清华大学化学工程系,北京,100084;化学工程联合国家重点实验室(清华大学),清华大学化学工程系,北京,100084 |
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| 基金项目： | 国家自然科学基金项目(20676069)~~ |
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| 摘 要： | 引言浊点萃取1-2]是利用表面活性剂水溶液的增溶和分相行为实现溶质富集的分离技术。由于分相后表面活性剂的富集相(亦称凝聚相)与水相的体积比非常小(0.007～0.04)3],所以,对于被增溶的物质能够提供非常高的富集倍数和萃取效率。目前浊点萃取技术主要广泛应用于痕量有害物质
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| 关 键 词： | TX114 浊点萃取 分相行为 D2EHPA |
| 文章编号： | 0438-1157（2008）02-0393-05 |
| 收稿时间： | 2007-07-17 |
| 修稿时间： | 2007-11-16 |
Cloud point extraction behavior of di(2-ethyl hexyl) phosphoric acid by non-ionic surfactant TX114 |
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| HUANG Yan,QIN Wei,DING Yuwen,DAI Youyuan.Cloud point extraction behavior of di(2-ethyl hexyl) phosphoric acid by non-ionic surfactant TX114[J].Journal of Chemical Industry and Engineering(China),2008,59(2):393-397. |
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| Authors: | HUANG Yan QIN Wei DING Yuwen DAI Youyuan |
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| Abstract: | Cloud point extraction (CPE) utilizing non-ionic surfactant TX114 was carried out to separate and concentrate di (2-ethyl hexyl) phosphoric acid (D2EHPA) in its dilute aqueous solution.The CPE process was facilitated at 45℃.The influence of TX114 concentration, D2EHPA concentration and solution acidity on the extraction efficiency was studied.The results showed that extraction efficiency increased with decreasing TX114 concentration and increasing D2EHPA concentration.Such unusual extraction behavior might be the result of the reverse-micelle coacervate phase, solublizing D2EHPA on the surface of micelle, and the influence of D2EHPA on the cloud point of TX114. |
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| Keywords: | TX114 cloud point extraction phase-separation behavior D2EHPA |
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