| 二（2-乙基已基）磷酸萃取氨基苯甲酸的平衡特性 |
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| 引用本文： | 张瑾,戴猷元. 二（2-乙基已基）磷酸萃取氨基苯甲酸的平衡特性[J]. 中国化学工程学报, 2000, 8(4): 300-303 |
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| 作者姓名： | 张瑾 戴猷元 |
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| 作者单位： | [1]DepartmentofFundamentalSciences,BeijingUniversityofPostsandTelecommunications,Beijing100876,China [2]DepartmentofChemicalEngineering,TsinghuaUniversity,Beijing100084,China |
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| 摘 要： | A series of extraction equilibrium experiments for aminobenzoic acid with di(2-ethylhexyl)phosphoric acid (D2EHPA) dissolved in n-octane or 1-octanol was carried out. The effects of aminobenzoic acid concentration,D2EHPA concentration and pH on the distribution ratio were discussed in detail. The infrared spectra of the organic phase loaded with solute illustrated that pH had little effect on the structure of the complex formed. There proceed ion association and cation-exchange.reaction in the extraction. An expression of the equilibrium distribution was proposed.
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| 关 键 词： | 二（2-乙基已基）磷酸 萃取 氨基苯甲酸 平衡特性 D2EHPA PH值 分离 |
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Distribution Behavior of Aminobenzoic Acid by Extraction with Di(2-ethylhexyl)phosphoric Acid |
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| ZHANG Jin,DAI Youyuan. Distribution Behavior of Aminobenzoic Acid by Extraction with Di(2-ethylhexyl)phosphoric Acid[J]. Chinese Journal of Chemical Engineering, 2000, 8(4): 300-303 |
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| Authors: | ZHANG Jin DAI Youyuan |
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| Affiliation: | Department of Fundamental Sciences, Beijing University of Posts and Telecommunications, Beijing 100876, China Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | A series of extraction equilibrium experiments for aminobenzoic acid with di(2-ethylhexyl)phosphoric acid (D2EHPA) dissolved in n-octane or 1-octanol was carried out. The effects of aminobenzoic acid concentration, D2EHPA concentration and pH on the distribution ratio were discussed in detail. The infrared spectra of the organic phase loaded with solute illustrated that pH had little effect on the structure of the complex formed. There proceed ion association and cation-exchange reaction in the extraction. An expression of the equilibrium distribution was proposed. |
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| Keywords: | extraction chemical complexation aminobenzoic acid D2EHPA pH value |
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