| 乙醇-水-l,3-二甲基咪唑磷酸二甲酯盐三组分物系的汽液平衡测定及关联 |
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| 引用本文： | 冉晓萌,王海川,王宝华,杨璇,朱炜,李群生.乙醇-水-l,3-二甲基咪唑磷酸二甲酯盐三组分物系的汽液平衡测定及关联[J].石油化工,2011,40(11):1196-1199. |
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| 作者姓名： | 冉晓萌 王海川 王宝华 杨璇 朱炜 李群生 |
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| 作者单位： | 1. 北京中医药大学中药学院,北京,100029
2. 北京化工大学化学工程学院,北京,100029 |
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| 基金项目： | 国家自然科学基金资助项目(20476005); 国家科技支撑计划课题子课题(2006BA109B07-01) |
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| 摘 要： | 在101.32 kPa下,用CE-2型Othmer汽液平衡釜测定了乙醇-水-1,3-二甲基咪唑磷酸二甲酯盐(mmim]DMP)物系的等压汽液平衡数据;采用UNIFAC方程对实验数据进行了关联。实验结果表明,UNIFAC方程可用于含离子液体物系的汽液平衡的计算;加入离子液体mmim]DMP使乙醇-水二组分物系的汽液平衡线发生偏离,mmim]DMP含量越高,汽液平衡线偏离程度越大;mmim]DMP具有明显的盐析效应,能消除乙醇-水二组分物系的共沸点;mmim]DMP可作为乙醇-水物系萃取精馏的溶剂。
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| 关 键 词： | 乙醇 水 1 3-二甲基咪唑磷酸二甲酯盐 汽液平衡 离子液体 UNIFAC方程 |
Determination and Correlation of Vapor-Liquid Equilibrium for Ethanol-Water-1,3-Dimethylimidazolium Dimethylphosphate Ternary System |
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| Ran Xiaomeng,Wang Haichuan,Wang Baohua,Yang Xuan,Zhu Wei,Li Qunsheng.Determination and Correlation of Vapor-Liquid Equilibrium for Ethanol-Water-1,3-Dimethylimidazolium Dimethylphosphate Ternary System[J].Petrochemical Technology,2011,40(11):1196-1199. |
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| Authors: | Ran Xiaomeng Wang Haichuan Wang Baohua Yang Xuan Zhu Wei Li Qunsheng |
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| Affiliation: | Ran Xiaomeng1,Wang Haichuan2,Wang Baohua1,Yang Xuan1,Zhu Wei2,Li Qunsheng2(1.College of Chinese Pharmacology,Beijing University of Chinese Medicine and Pharmacology,Beijing 100029,China,2.College of Chemical Engineering,Beijing University of Chemical Technology,China) |
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| Abstract: | Isobaric vapor-liquid equilibrium for ethanol-water-1,3-dimethylimidazolium dimethyl-phosphate(DMP) ternary system was measured at 101.32 kPa using modified Othmer equilibrium still.The experiment results showed that the ionic liquid DMP exhibited notable salt-out effect which could enhance the relative volatility.When the mole fraction of DMP amounted to 5%,the azeotropic point disappeared and the relative volatility of the system increased with the increase of the mole fraction of DMP.UNIFAC equation was ... |
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| Keywords: | ethanol water 1 3-dimethylimidazolium dimethylphosphate vapor-liquid equilibrium ionic liquid UNIFAC equation |
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