离子液体的溶液热力学模型研究进展

离子液体是近年来发展起来的一种绿色介质，在化工反应和分离过程中具有广泛的应用前景。离子液体的溶液热力学性质和相平衡数据是其相关工艺过程设计的基础。本文从如下几个方面综述了离子液体溶液热力学模型的研究进展，即溶液热力学研究方法、溶液热力学模型的构建、离子液体的结构和分子间作用力、离子液体的溶液热力学模型及其在相平衡计算中的应用。重点分析了适用于离子液体溶液热力学性质计算的状态方程模型和过量Gibbs自由能模型或活度系数模型，离子液体的电解质和非电解质溶液模型，以及这些模型对ILs结构、氢键和静电作用的处理方法。分析了这些模型的优缺点，并对今后离子液体的溶液热力学研究提出了建议。

Recent advances in thermodynamic modelling of ionic liquid solutions

Ionic liquids (ILs) is a novel and green solvent, and shows prospective applications in ILs related reaction and separation processes. Their thermodynamic properties and fluid phase equilibria data are instrumental for the ILs-related process design. This paper reviewed the recent advances in thermodynamic modelling of ILs solutions in terms of the following aspects, viz. study methods of solution thermodynamics, construction of solution thermodynamic models, the structure and intermolecular forces of ILs, thermodynamic models of ILs solution and their applications in fluid phase equilibria. Special focuse was given to the development of equation of state and excess Gibbs free energy or activity coefficient models, electrolyte and non-electrolyte solution models, as well as their treatment for ILs structure, hydrogen bonding and electrostatic interactions. The merits and demerits of these models were analyzed, and some suggestions were proposed for the study of molecular thermodynamic models of ILs solutions.