TY - JOUR ID - 103829 TI - Separation of Acetic Acid from Water Using Organic Solvents: Liquid-Liquid Equilibrium Thermodynamic Investigation JO - Physical Chemistry Research JA - PCR LA - en SN - 2322-5521 AU - Mohadesi, Majid AU - Rezaei, Raziye AD - Department of Chemical Engineering, Faculty of Energy, Kermanshah University of Technology, Kermanshah, Iran AD - Catalyst Research Center, Chemical Engineering Department, Faculty of Engineering, Razi University, Kermanshah, Iran Y1 - 2020 PY - 2020 VL - 8 IS - 2 SP - 267 EP - 280 KW - Liquid-liquid equilibrium KW - Ternary system KW - organic solvent KW - NRTL model KW - UNIQUAC model DO - 10.22036/pcr.2020.205810.1693 N2 - Acetic acid is one of the most important carboxylic acids which is used in many reactions, including the synthesis of acetic esters. Because of industrial and environmental advantages, the separation of acetic acid from dilute aqueous solutions has recently received much attention. In this study we investigated liquid-liquid equilibrium of a ternary system consisted of water+ acetic acid+ organic solvent at various temperatures. In this study, various thermodynamic models (Non-Random Two-Liquid (NRTL) and Universal Quasi-Chemical (UNIQUAC) models) were used to predict the composition of component in aqueous and organic phases. In these models, intermolecular interaction were considered as a binomial function of reverse temperature. The parameters of two models were determined through the optimization of an objective function. Root mean square deviations of the NRTL and UNIQUAC models to predict the composition of the components in the ternary mixture of water+ acetic acid+ organic solvent were 0.0273 and 0.0422, respectively. UR - https://www.physchemres.org/article_103829.html L1 - https://www.physchemres.org/article_103829_a17607c589599915b68f0151de96e3f6.pdf ER -