Multiphase equilibria for mixtures containing water, isopropanol, propionic acid, and isopropyl propionate

作者：Hsieh Cheng Ting; Lee Ming Jer^*; Lin Ho mu; Cheng Ju Chun; Ji Wan Yun

来源：Fluid Phase Equilibria, 2011, 305(1): 53-61.

DOI：10.1016/j.fluid.2011.03.003

• Vapor-liquid equilibrium
• Vapor-liquid-liquid equilibria
• Water
• Isopropanol
• Isopropyl propionate

Vapor pressures of isopropyl propionate and isobaric vapor-liquid equilibrium (VLE) properties of isopropyl propionate + isopropanol and propionic acid + isopropyl propionate were measured. Isothermal vapor-liquid-liquid equilibrium (VLLE) data were also determined experimentally for water + isopropyl propionate and water + isopropyl propionate + isopropanol at temperatures from 323.24 K to 373.15 K. The binary VLE and VLLE data can be correlated well with the NRTL-HOC and the UNIQUAC-HOC models. The ternary VLLE data were used to test the validity of two versions of the UNIFAC model and the NRTL-HOC and the UNIQUAC-HOC models with the parameters determined from the phase equilibrium data of the constituent binaries. The ternary VLLE data were also correlated with the NRTL-HOC and the UNIQUAC-HOC models and the Soave-Redlich-Kwong equation of state with the Wong-Sandler mixing rule.

• 出版日期2011-6-15