溶液结晶热力学与过程分析研究进展  

Research and application of solution crystallization thermodynamics and process analysis

作　　者：胡涛涛 杨丽[2] 刘鹏 程景才[2] 范益群[1] 张妍[2] 杨超[2] HU Taotao;YANG Li;LIU Peng;CHENG Jingcai;FAN Yiqun;ZHANG Yan;YANG Chao(Nanjing Tech University,Nanjing 211816,China;Institute of Process Engineering,Chinese Academy of Science,Beijing 100190,China)

机构地区：[1]南京工业大学,南京211816 [2]中国科学院过程工程研究所,北京100190

出　　处：《化学工业与工程》2023年第4期67-77,共11页Chemical Industry and Engineering

基　　金：国家重点研发计划课题(2021YFC2902502);国家自然科学基金(22078332,21878294,21938009,22035007);中国科学院国际伙伴计划对外合作重点项目(122111KYSB20190032);中国工程院咨询研究项目(2020-ZD-4)。

摘　　要：结晶是一种重要的分离和纯化手段。在医药、食品、材料制备等领域中众多产品都是以晶体的形式存在。热力学是结晶过程研究的理论基础,目标体系的热力学性质对结晶方式(降温结晶、蒸发结晶和溶析结晶等)的选择有重要影响,而热力学平衡关系则决定了结晶收率的极限以及不同条件下各种晶型的稳定性,因此热力学的相关研究对于结晶过程的优化和放大设计有重要的指导意义。归纳了不同结晶体系的固液平衡数据测量方法,介绍了NRTL方程、e-NRTL方程、MSE模型等热力学模型在无机盐以及药物结晶过程中的相平衡计算和预测实例,分析了过饱和度、介稳区以及相图在结晶过程优化方面的作用,此外还总结了过程分析技术在溶液结晶领域的应用现状,展望了结晶领域未来的发展前景。Crystallization is an important means of separation and purification.Many products in the fields of medicine,food,fertilizer and so on are in the form of crystals.Thermodynamics is the theoretical basis of the study of the crystallization process.The thermodynamic properties of the target system have an im-portant influence on the selection of crystallization methods(cooling crystallization,evaporative crystalli-zation,anti-solvent crystallization,etc.),while the thermodynamic equilibrium relationship determines the limit of crystallization yield and the stability of different crystal forms under specific conditions.Therefore,the research of thermodynamics has important guiding significance for the optimization and am-plification design of the crystallization process.In this paper,the measuring methods of solid-liquid equi-librium data of different crystallization systems were summarized;and several thermodynamic modelling cases of phase equilibrium using models such as NRTL,e-NRTL and MSE were shown;the methods of measurement and calculation of supersaturation,and metastable region and phase diagram in crystalliza-tion process optimization and selection of separation methods was introduced;in addition,the application status of process analysis technology in the field of solution crystallization was summarized,and its devel-opment tendency in crystallization field was prospected.

关 键 词：结晶 热力学 相平衡 过程分析 

分 类 号：O645.164[理学—物理化学]