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| 含离子液体体系液液相平衡的计算 | |
| 引用本文： | 焦真,吴有庭,张志炳,陈志明.含离子液体体系液液相平衡的计算[J].化学工程,2009,37(9). |
| 作者姓名： | 焦真 吴有庭 张志炳 陈志明 |
| 作者单位： | 1. 东南大学化学化工学院,江苏南京210096;南京大学化学化工学院,江苏南京210093 2. 南京大学化学化工学院,江苏南京,210093 3. 东南大学化学化工学院,江苏南京,210096 |
| 基金项目： | 东南大学新进博士科研启动项目 |
| 摘 要： | 含有离子液体体系的液液平衡数据是离子液体实际应用最重要的基础数据之一。文中在扩展的NRTL方程中进一步引入了分子体积修正项,计算结果表明,该修正能更好地提高模型预测含离子液体体系的精度。因此,文中利用该模型关联了文献报道的多种常见离子液体和醇类二元体系,所有体系计算值与实验值的质量分数最大绝对误差小于3.5%,平均绝对误差小于1.5%;同时,文中利用拟合得到的二元模型参数,成功预测了23℃和50℃时水-正丁醇-bmim]PF6三元体系的液液平衡相图。 |
| 关 键 词： | 液液相平衡 离子液体 NRTL方程 |
Calculation of liquid-liquid equilibrium for ionic liquid-containing system |
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| JIAO Zhen,WU You-ting,ZHANG Zhi-bing,CHEN Zhi-ming.Calculation of liquid-liquid equilibrium for ionic liquid-containing system[J].Chemical Engineering,2009,37(9). | |
| Authors: | JIAO Zhen WU You-ting ZHANG Zhi-bing CHEN Zhi-ming |
| Affiliation: | 1.School of Chemistry and Chemical Engineering;Southeast University;Nanjing 210096;Jiangsu Province;China;2.School of Chemistry and Chemical Engineering;Nanjing University;Nanjing 210093;China |
| Abstract: | The liquid-liquid equilibrium(LLE) of ionic liquid-containing system is one of the most important data for the practical applications.In the extended NRTL(non-random two-liquid) equation,the molecule volume revisal was further introduced.The calculation result shows that such revisal can better improve the model prediction for the precision of ionic liquid-containing system.Therefore,the ionic liquid-alcohol binary system was accurately represented by the modified equation with the average and maximum absol... |
| Keywords: | liquid-liquid equilibrium ionic liquid NRTL equation |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
