离子液体的多元相平衡研究进展  

Research Development of Phase Equilibrium of Ionic Liquid and Other Compounds

作　　者：李汝雄[1] 王建基[1] 

机构地区：[1]北京石油化工学院化学工程系,北京102617

出　　处：《北京石油化工学院学报》2005年第4期28-34,共7页Journal of Beijing Institute of Petrochemical Technology

摘　　要：综述了近年关于离子液体与其它物质混合物的二元、三元相平衡研究,包括常压及 高压下气体在离子液体中的溶解度、有机化合物与离子液体的二元气液平衡、有机物及水在离子液体中 的无限稀释活度系数γ∞、含离子液体的二元及三元液-液平衡、二元液-液-固平衡等,所测定的主要 是咪唑离子液体。列出相关文献、测定系统、温度压力范围、相平衡特点以及数据的回归、预测方法等。 不同小组测定的相平衡数据有的相互吻合较好,有的差别较大。离子液体的相平衡数据还比较缺乏,要 进一步积累以供工业应用。Recent studies on binary and ternary phase equilibrium of ionic liquid are summarized mainly based on the measurement of imidazole ionic liquid, including solubility of gas in ionic liquid at low or high pressure, binary vapor-liquid equilibrium of organic compounds and ionic liquid, activity coefficient at infinite dilution （γ∞） of organic compounds and water in ionic liquid, binary and ternary liquid-liquid equilibrium of ionic liquid and organic compounds, and binary liquid-liquid-solid equilibrium of ionic liquid, organic compounds and water. Relative literatures, measurement system, range of temperature and pressure, characteristics of phase equilibrium, as well as data prediction methods are listed. Some of the phase equilibrium data prediction methods are listed. Some of the phase equilibrium data are in good agreement, and some diverge largely from each other. The phase equilibrium data of ionic liquid is still in short supply, and further accumulation is needed for commercial application.

关 键 词：离子液体 混合物 相平衡 

分 类 号：TQ426[化学工程]