Isobaric Vapour-Liquid Equilibrium of Ternary Mixtures Cyclohexane (or n -Hexane) Plus 1,3-Dioxolane Plus 2-Butanol at 40.0 and 101.3 kPa

Abstract

Isobaric vapour-liquid equilibrium (VLE) data for the mixtures cyclohexane þ 2-butanol and cyclohexane þ 1,3-dioxolane þ 2-butanol have been obtained with a recirculating still at 40.0 and 101.3 kPa. We also have determined isobaric VLE data at 101.3 kPa for the system n-hexane þ 1,3-dioxolane þ 2-butanol. The experimental data for all the binary and ternary mixtures were checked for thermodynamic consistency using the method of Van Ness. Activity coefficients have been correlated with different equations (Wilson, Van Laar, Margules, NRTL and UNIQUAC) giving satisfactory results. Predictions with the group contribution methods ASOG and UNIFAC were obtained and compared with experimental data.

Vapor−Liquid Equilibria in Binary Systems Formed by Cyclohexane with Alcohols

“…Nineteen VLE data for the cyclohexane + 2-butanol system have already been reported in the literature. The main sources − consist both of isobaric (from (8 to 101) kPa) and of isothermal [(323.15 to 372.15) K] data. Much less (only two publications , ) VLE data can be found for the cyclohexane + 2-methyl-2-butanol system, and the VLE for the cyclohexane + 1-hexanol system have been measured only in one laboratory by Svoboda et al In the literature, there are the lack of VLE data for the cyclohexane + 2-pentanol system.…”

“…15 Nineteen VLE data for the cyclohexane + 2-butanol system have already been reported in the literature. The main sources [1][2][3][4] consist both of isobaric (from (8 to 101) kPa) and of isothermal [(323.15 to 372. 15) K] data.…”

Densities and speeds of sound for binary mixtures of (1,3-dioxolane or 1,4-dioxane) with (2-methyl-1-propanol or 2-methyl-2-propanol) at the temperatures (298.15 and 313.15) K

“…Our research group has focused its attention on the measurement and determination of thermodynamic and transport properties of liquid mixtures incorporating at least one substance carrying an oxygenated functional group (alkanol, cyclic monoether, or cyclic diether [1][2][3][4][5][6][7][8][9][10]). The main goal of this research line is to obtain more information about the structure of the solutions and the molecular interactions established between the different components.…”

Liquid–liquid equilibria for multicomponent mixtures of 2,2-dimethyl-1,3-dioxolane with n-heptane, toluene, ethanol and water

“…The VLE data are available for three-component mixtures of 1,3-dioxolane with methanol + water [19], 2-propanol + 2,2,4-trimethylpentane [9], 1-butanol/2-butanol + n-hexane/cyclohexane [8,23]. In all these systems positive deviations from ideality and azeotropy are observed.…”