| 非离子表面活性剂C12E10的浊点分相行为及其应用 |
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| 引用本文： | 黄焱,秦炜,柳鹤,霍小平,戴猷元. 非离子表面活性剂C12E10的浊点分相行为及其应用[J]. 化工学报, 2007, 58(5): 1253-1258 |
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| 作者姓名： | 黄焱 秦炜 柳鹤 霍小平 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;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： | 北京市科委科技三项基金 |
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| 摘 要： | 引言 络合萃取技术对极性有机物稀溶液和金属离子的分离具有高效性和高选择性,已广泛应用于湿法冶金领域.由于萃取剂在萃残液中分子水平的溶解以及萃取塔器操作时水相对于萃取剂相细小液滴的夹带,造成了一定程度的萃取剂流失和环境污染,同时,由于萃取剂大都分子量较大,生物降解性能不佳[1],因此,开展从水溶液中回收萃取剂的研究是十分必要的.
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| 关 键 词： | 浊点萃取 分相行为 萃取剂 二(2-乙基己基)磷酸 |
| 文章编号： | 0438-1157（2007）05-1253-06 |
| 收稿时间： | 2006-08-29 |
| 修稿时间： | 2006-08-292007-02-08 |
Phase-separation behavior for cloud point and application of non-ionic surfactant C12E10 |
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| HUANG Yan,QIN Wei,LIU He,HUO Xiaoping,DAI Youyuan. Phase-separation behavior for cloud point and application of non-ionic surfactant C12E10[J]. Journal of Chemical Industry and Engineering(China), 2007, 58(5): 1253-1258 |
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| Authors: | HUANG Yan QIN Wei LIU He HUO Xiaoping DAI Youyuan |
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| Affiliation: | State Key Laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Cloud point extraction (CPE) utilizing polyoxyethylene 10 lauryl ether (C12E10) as the surfactant was carried out to separate and concentrate di(2-ethyl hexyl) phosphoric acid (D2EHPA) in its dilute aqueous solution.The CPE process was facilitated by decreasing the cloud point (CP) temperature of the solution with sodium sulfate.The influence of C12E10 concentration, settling temperature, pH value, and Ni2 in the solution on the extraction efficiency (E) was studied.The results showed that extraction efficiency increased with the concentration of C12E10, temperature and pH value of the system.Trace Ni2 in the solution has no obvious influence on extraction efficiency of D2EHPA when pH=7.00.Single-stage extraction efficiency larger than 85% has been obtained. |
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| Keywords: | cloud point extractions phase-separation behavior extractant D2EHPA |
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