Measurement and correlation of vapor-liquid equilibra for cyclohexane+ethylene glycol monoisopropyl ether and cyclohexane+ethylene glycol monoisobutyl ether systems

作者：Kim Sujin; Kim Hwayong; Shin Moon Sam^*

来源：Journal of Industrial and Engineering Chemistry, 2012, 18(1): 409-413.

DOI：10.1016/j.jiec.2011.11.022

• Surfactants
• Ethylene glycol monoisopropyl ether
• Ethylene glycol monoisobutyl ether
• Cyclohexane
• Association

Ethylene glycol monoisopropyl ether (iC(3)E(1)) and ethylene glycol monoisobutyl ether (iC(4)E(1)) are nonionic surfactants which have been attracting considerable attention due to inter and intra-molecular association, related to the presence of O and OH in the same molecule. Binary isothermal vapor + liquid equilibrium data were measured for cyclohexane + ethylene glycol monoisopropyl ether and cyclohexane + ethylene glycol monoisobutyl ether systems at four different temperatures ranging from 303.15 K to 333.15 K at 10K intervals. A static apparatus was used in this study. Two systems show positive deviation from Raoult's law and no azeotrope. The experimental data were correlated well with Peng-Robinson-Stryjek-Vera equation of state using Wong-Sandler mixing rule.

• 出版日期2012-1-25