| 三辛胺对羧酸的络合萃取 |
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| 引用本文： | 杨义燕,赵洪,戴猷元. 三辛胺对羧酸的络合萃取[J]. 清华大学学报(自然科学版), 1995, 0(3) |
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| 作者姓名： | 杨义燕 赵洪 戴猷元 |
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| 作者单位： | 清华大学化学工程系 |
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| 摘 要： | 络合萃取法对于极性有机物稀溶液分离具有高效性和高选择性。用体积分数为２０％三辛胺＋３０％正辛醇＋５０％煤油混合溶剂对乙酸、乙二酸、丁酸、丁二酸、戊酸、己酸、己二酸、苹果酸，酒石酸和２－溴了酸稀溶液进行了系统的萃取相平衡实验研究。结果表明，混合溶剂对有机羧酸稀溶液具有相当高的分配系数Ｄ。探讨了胺类萃取剂萃取有机羧酸的过程机理。
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| 关 键 词： | 络合萃取；有机羧酸；三辛胺 |
Extraction of carboxylic acid with tri-n-octylamineby reversible chemical complexation |
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| Yang Yiyan,Zhao Hong, Dai Youyuan. Extraction of carboxylic acid with tri-n-octylamineby reversible chemical complexation[J]. Journal of Tsinghua University(Science and Technology), 1995, 0(3) |
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| Authors: | Yang Yiyan Zhao Hong Dai Youyuan |
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| Abstract: | Extraction process based on chemical complexation can be high in capacities andselectivities for dilute polar organic solution. In this paper, a mixed extractant with 20%tri-n-octylamine 30%octanol 50% kerosene is used. A series of equilibrium experimentshave been carried out for extraction of acetic acid, oxalic acid, n-butyric acid, succinic acid,n-valeric acid, n-hexanic acid, adipic acid, tartaric acid, malic acid and 2-bromine butyricacid with the mixed solvent. Results show that the mixed solvent can give high distributioncoefficient for carboxylic acid. The extraction mechanism of carboxylic acid by solventcontaining amine is investigated. |
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| Keywords: | extraction by chemical complexation carboxylic acid tri-n-octylamine |
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