| 用NRTL方程关联和预测离子液体-醇-水体系的液液相平衡 |
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| 引用本文： | 焦真,马少玲,王兵,吴有庭,张志炳.用NRTL方程关联和预测离子液体-醇-水体系的液液相平衡[J].化工学报,2006,57(12):2801-2805. |
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| 作者姓名： | 焦真 马少玲 王兵 吴有庭 张志炳 |
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| 作者单位： | 南京大学化学化工学院，江苏 南京 210093 |
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| 基金项目： | 江苏省科研项目
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南京大学人才引进启动项目 |
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| 摘 要： | 引 言 离子液体是指在室温或室温附近温度下呈液态的由离子构成的有机熔融盐,其特点是:几乎没有蒸气压,热稳定性好,大多数离子液体可以在高达300℃的温度范围内不分解,还对大量常见的有机物或无机物有良好的溶解性能,用离子液体替代传统的有机溶剂作为反应和分离的介质,也能有效地消除VOCs污染.因此,离子液体的研制和应用受到了广泛的关注1-3].
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| 关 键 词： | 液液相平衡 离子液体 醇类 NRTL方程 |
| 文章编号： | 0438-1157（2006）12-2801-05 |
| 收稿时间： | 12 9 2005 12:00AM |
| 修稿时间： | 2005-12-09 |
Correlation and prediction of liquid-liquid phase equilibrium of ionic liquid-alcohol-water systems with NRTL equation |
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| JIAO Zhen,MA Shaoling,WANG Bing,WU Youting,ZHANG Zhibing.Correlation and prediction of liquid-liquid phase equilibrium of ionic liquid-alcohol-water systems with NRTL equation[J].Journal of Chemical Industry and Engineering(China),2006,57(12):2801-2805. |
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| Authors: | JIAO Zhen MA Shaoling WANG Bing WU Youting ZHANG Zhibing |
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| Affiliation: | School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, Jiangsu, China |
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| Abstract: | Ionic liquids have received increasing attention for their potential uses as non-wolatile separation and reaction solvents, and the liquid-liquid equilibrium(LLE)of ionic liquid containing systems is of great importance for such practical applications.The NRTL(non-random two liquid)equation was extended and used in this paper for the calculation of the LLE data of some ionic liquid-alcohol binary systems.It was found that the extended NRTL model could be accurately used to represent the LLE of these ionic liquid-alcohol systems with the average absolute deviations lower than 0.6%.The LLE data of two ternary systems, H_2O-n-butanol-bmim]PF_6 and H_2O-n-butanol-omim]PF_6, were further successfully predicted for the first time by using the NRTL binary parameters. |
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| Keywords: | liquid-liquid equilibrium ionic liquid alcohols NRTL equation |
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