| 萃取精馏分离乙酸乙酯-乙醇的溶剂 |
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| 引用本文： | 张志刚,张卫江,杨志才,崔现宝.萃取精馏分离乙酸乙酯-乙醇的溶剂[J].化工学报,2004,55(2):226-230. |
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| 作者姓名： | 张志刚 张卫江 杨志才 崔现宝 |
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| 作者单位： | 天津大学化工学院化学工程研究所,天津,300072;长春工业大学化工学院,吉林,长春,130012;天津大学化工学院化学工程研究所,天津,300072 |
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| 摘 要： | 通过实验对萃取精馏分离乙酸乙酯-乙醇共沸体系的溶剂选择进行了研究.结果表明，二元 混合溶剂 (N,N-二甲基甲酰胺+二甲亚砜)的分离性能优于单一溶剂 (N,N-二甲基甲酰胺或二甲亚砜).运用修正UNIFAC模型对实验数据进行了关联，发现修正UNIFAC模型预测法和实验法相结合是一种快速有效的萃取精馏溶剂选择方法.
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| 关 键 词： | N N-二甲基甲酰胺 乙酸乙酯 乙醇 二甲亚砜 UNIFAC 溶剂 |
| 文章编号： | 0438-1157(2004)02-0226-05 |
| 收稿时间： | 2002-12-28 |
| 修稿时间： | 2003-4-28
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SOLVENT FOR SEPARATING ETHYL ACETATE-ETHANOL BY EXTRACTIVE DISTILLATION |
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| ZHANG Zhigang,ZHANG Weijiang,YANG Zhicai,CUI Xianbao.SOLVENT FOR SEPARATING ETHYL ACETATE-ETHANOL BY EXTRACTIVE DISTILLATION[J].Journal of Chemical Industry and Engineering(China),2004,55(2):226-230. |
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| Authors: | ZHANG Zhigang ZHANG Weijiang YANG Zhicai CUI Xianbao |
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| Abstract: | A number of solvents for separation of ethyl acetate-ethanol were examined in a VLE experiment apparatus.The integrated properties of the solvents were investigated and the experimental data were correlated with the modified UNIFAC model. It was found from the results that binary mixed solvents (DMSO DMF) were superior to single solvent (DMSO or DMF) for separating ethyl acetate-ethanol by extractive distillation.The modified UNIFAC model combined with experiments is a rapid,accurate approach to selecting the solvent for extractive distillation. |
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| Keywords: | N N-dimethylformamide (DMF) ethyl acetate ethanol dimethylsulfoxide (DMSO) UNIFAC solvent |
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