Isothermal vapor-liquid equilibrium data for ether + glycol, chloroalkene + glycol, epoxy ether + alkane, epoxy ether + alkene, and epoxy ether + chloroalkane systems

Abstract

A Dvorak-Boublik equilibrium recirculation apparatus has been used to measure isothermal vapor-liquid equilibrium (VLE) data for 10 different binary systems: diisopropyl ether + 2-methoxyethanol, trichloroethylene + 2-methoxyethanol, 1,2-epoxybutane + n-hexane, 1,2-epoxyhexane + n-heptane, 1,2-epoxybutane + n-heptane, 1,2-epoxybutane + 1-hexene, 1,2-epoxybutane + 1-octene, 1,2-epoxybutane + 1-chlorobutane, 1,2-epoxybutane + 2-chlorobutane, and epichlorohydrin (l-chloro-2,3-epoxypropane) + 2-chlorobutane. For each system except the last one, two isothermal sets of VLE data at pressures ranging from 7 to 102 kPa have been measured. Computer programs, using a numerical routine based on the maximum likelihood principle, have been used to test the data for thermodynamic consistency and to calculate group interaction parameters (formerly not available) for the UNIFAC model.

Isothermal Vapor−Liquid Equilibria, Excess Molar Enthalpies, and Excess Molar Volumes of Trichloromethane + 1,2-Epoxybutane at (288.15, 298.15, and 313.15) K

“…The values of the vapor pressure P°i of pure components were fitted to the Clausius-Clapeyron equation. The parameters A and B are listed in Table 3 with their correlation coefficients R and standard deviations σ(P°i); our values agree with those of the literature (Smith and Srivastava, 1986;Jo ´nasson et al, 1994) within the limits of the experimental errors.…”

Vapor−Liquid Equilibria, Excess Molar Enthalpies, and Excess Molar Volumes of Dimethyl Carbonate + 1,2-Epoxybutane at 288.15, 298.15, or 313.15 K

“…Our values agree with those of the literature (Cocero et al, 1989;Jo ´nasson et al, 1994), within the limits of experimental errors. The VLE data are reported in Table 3 while the P-x 1 -y 1 plots are graphically represented in Figure 1.…”

Vapor Pressures and Thermophysical Properties of Dimethoxymethane, 1,2-Dimethoxyethane, 2-Methoxyethanol, and 2-Ethoxyethanol: Data Reconciliation and Perturbed-Chain Statistical Associating Fluid Theory Modeling

“…Our static vapor pressure data are consistent with ebulliometric data by Steele et al, 44 which we also consider the most precise, so the other sets were excluded from the correlation. A few data points by Jonasson et al 43 and Carmona et al 46 obtained during VLE measurements are consistent with Steele et al, 44 so they were also included in the correlation. Their inclusion however does not have a significant impact on the final correlation.…”

“…Brown open circles, Pick et al; forest green inverted triangles, Quitzsch et al; blue diamonds, Chandak et al; red hexagonal stars, Kuus et al. ; green left-pointing triangles, Jonasson et al; orange solid circles, Steele et al; navy stars, Krishnaiah et al; purple triangles, Carmona et al; forest green cross marks, Lladosa et al; magenta right-pointing triangles, Marrufo et al. ; brown plus signs, Bejarano et al; olive asterisks, Reddy et al; red squares, this work (STAT6); red solid line, data obtained by the SimCor method (see Section ).…”

“…2-Methoxyethanol: relative deviations ( p – p calc )/ p calc of vapor pressures p from the recommended values p calc calculated using the Cox equation, eq , with parameters listed in Table . Brown open circles, Pick et al; forest green inverted triangles, Quitzsch et al; blue diamonds, Chandak et al (partially displayed); red hexagonal stars, Kuus et al; green left-pointing triangles, Jonasson et al; orange solid circles, Steele et al; navy stars, Krishnaiah et al; purple triangles, Carmona et al. ; forest green cross marks, Lladosa et al; magenta right-pointing triangles, Marrufo et al; brown plus signs, Bejarano et al; olive asterisks, Reddy et al (partially displayed); red squares, this work (static); dotted lines, absolute deviations.…”