The vapor−liquid equilibrium (VLE) isotherms were directly determined by the ebulliometric method
for the system 2-ethoxyethanol + methanol. The experimental results were correlated by an equation of
state that is capable of reproducing VLE for associating and reacting systems with an accuracy similar
to the experiment uncertainty over a reasonable range of pressure and temperature. Such correlations
are hard to obtain with equations representing activity coefficients at specific particular isotherms.
The vapor-liquid equilibrium (VLEspressure, temperature, and composition of coexisting vapor and liquid phases) was directly determined by the ebulliometric method for the system formed by 2-ethoxyethanol with phenol. An azeotrope has been found. The experimental results were correlated by means of an equation of state (AEOS) that is capable of reproducing the VLE for associating and reacting systems over a wide range of pressure and temperature with accuracy similar to the experiment uncertainty. Such results are hard to obtain with equations representing activity coefficients.
The saturation pressures of propylene glycol at (393 to 423) K, 2-(2-hexyloxyetoxy)ethanol at (402 to
423) K, 1-methyl-2-pyrrolidone at (352 to 378) K, and 1-methoxypropan-2-ol at (347 to 378) K were
measured by an ebulliometric method. The vapor−liquid equilibrium (P, T, x, y) was measured by an
ebulliometric method for the system propylene glycol + 2-(2-hexyloxyethoxy)ethanol at (403.15, 413.15,
and 423.15) K and for the system 1-methyl-2-pyrrolidone + 1-methoxypropan-2-ol at (353.15, 363.15,
and 373.15) K. The experimental vapor pressures were correlated with Antoine and association + equation
of state (AEOS) equations, while the VLE was correlated with the AEOS equation of state for all the
temperature intervals and with equations representing activity coefficients at specific particular isotherms.
The saturation pressure of α-methyl benzyl alcohol (358 to 398) K and n-butyl formate (313 to 359) K
was measured by an ebulliometric method. The vapor−liquid equilibrium (p, T, x, y) at (353.15, 373.15,
and 393.15) K was measured by the ebulliometric method for the systems phenol + α-methyl benzyl
alcohol and at (333.15, 343.15, and 353.15) K for 2-ethoxyethanol + n-butyl formate. The experimental
vapor pressures were correlated with the Antoine and AEOS equations, whereas VLE was correlated
with AEOS equation of state.
The vapor-liquid equilibrium (P, T, x, y) was measured at 313.15, 323.15, and 333.15 K by the ebulliometric method for the binary systems formed by 2-ethoxyethanol with valeraldehyde and with propyl ether. The experimental results were correlated with equations representing liquid-phase activity coefficients.
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