文献类型：期刊文献

英文题名：Renormalization Group Approach to Binary Liquid-Liquid Equilibria

作者：Yu, Fan[1];Cai, Jun[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：59

期号：20

起止页码：9611

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20202408817934);WOS:【SCI-EXPANDED(收录号:WOS:000537411400027)】；

基金：For financial support, we are grateful to the National Natural Science Foundation of China (No. 20973062).

语种：英文

外文关键词：Statistical mechanics - Binary alloys - Lattice theory - Group theory - Phase equilibria - Binary mixtures

摘要：Although it is a common way to obtain liquid-liquid equilibrium properties by solving activity coefficient models such as the NRTL model and the UNIQUAC model, these methods have disadvantages near the critical point due to the defect of their mean-field-like characters. In this work, by making use of the Landau-Ginzburg theory for a fluctuating order parameter and the isomorphism between the lattice gas and the binary alloy, we extend White's renormalization group theory for one-component vapor-liquid equilibria to binary liquid-liquid equilibria. The liquid-liquid equilibria curves obtained from the renormalization group theory are in good agreement with experimental data. In addition, the calculated critical exponents are consistent with the three-dimensional Ising universality class.