Isobaric Vapor–Liquid Equilibrium for Two Binary Systems of 3,3-Dimethyloxetane + Methyl Cyclohexane and 3-Chloro-2,2-dimethyl-1-propanol + Methyl Cyclohexane at 101.3 kPa

The binary vapor–liquid equilibrium (VLE) data at the pressure of 101.3 kPa, which are 3,3-dimethyloxetane + methyl cyclohexane and 3-chloro-2,2-dimethyl-1-propanol + methyl cyclohexane, have been measured using a modified Rose vapor-recirculating equilibrium still. The reliability of VLE data was verified by thermodynamic consistency of area test of Herington and point test of Van Ness. The experimental data were regressed with activity coefficient models of Wilson, nonrandom two-liquid, and UNIQUAC, respectively, and the corresponding binary interaction parameters were obtained using the maximum likelihood method. The root-mean square deviations between calculated and experimental data for the vapor phase molar fraction and equilibrium temperature were less than 0.0119 and 0.58 K, which indicated that the fitted results for the three models were within acceptable limits.