Determination and thermodynamic evaluation of isobaric VLE of methyl acetate or ethyl acetate with 2-propanol at 0.3 and 0.6MPa

High pressure vapor–liquid equilibria of methyl acetate or ethyl acetate with 2-propanol at 1.5MPa. Experimental data and predictions

“…Considering this, and as a continuation of previous works (Ortega and Susial, 1993;Susial et al, 2014), the isobaric vapor-liquid equilibrium (VLE) of different ester + alcohol binary mixtures under over-pressure conditions has been experimentally determined using a dynamic stainless steel ebulliometer (Susial et al, 2010). Specifically, the VLE properties (p-T-x-y) were obtained at 1.5 MPa for the binary mixtures of methyl acetate + 2-propanol (MA2P) and ethyl acetate + 2-propanol (EA2P).…”

“…The physical properties, normal boiling point (T bp ), density ( ii ) at 298.15 K, and refractive index (n D ) at 298.15 K, determined for methyl acetate, ethyl acetate (both purity of 99.5%, w/w from Sigma-Aldrich) and 2-propanol (purity of 99.8%, w/w from Panreac Química S.A.), are not different from those previously published (Susial et al, 2014). All substances were used as received without further purification.…”

“…Mole fraction (x i ) vs. density ( ij ) pairs were verified by the adequate correlation of the calculated excess volumes (Susial et al, 2014). The greatest uncertainty for this composition analysis method was estimated to be lower than ±0.002 units in mole fraction of vapor phase.…”

“…The composition of the liquid (x 1 ) and vapor (y 1 ) phases in the collected samples was determined by using a calibration curve of composition vs. density previously obtained at 298.15 K by densimetric analysis (Susial et al, 2014). Mole fraction (x i ) vs. density ( ij ) pairs were verified by the adequate correlation of the calculated excess volumes (Susial et al, 2014).…”

“…The azeotrope of the EA2P system has been described in the literature (Gmehling et al, 2004) Fredenslund et al (1977). Since the validation routine is a function of vapor pressures, for the three substances in this work, vapor pressures reported in previous papers (Susial et al, 2011(Susial et al, , 2012(Susial et al, , 2014 were used.…”