Liquid-liquid equilibrium data for ternary systems of water + acetic acid+ acetate esters at 293.2 K and 303.2 K and ≈ 95 kPa

Roque, Laerti Reis; Pinto, Rafaela Rocha; Oliveira, Leonardo Hadlich de; Rabelo, Sarita Cândida

doi:10.1016/j.fluid.2018.02.003

Cited by 12 publications

(9 citation statements)

References 27 publications

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“…Furthermore, the binary end points’ compositions in this work were compared with some data in the literature. ,− Some differences between them can be seen. The differences between the results can be related to visual error and instrumental error and also the differences in the measurement techniques.…”

Section: Resultsmentioning

confidence: 99%

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Phase Equilibrium Study of the Aqueous Solution of Propanoic Acid with Acetates at Different Temperatures

2021

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Ternary phase behavior of water + propanoic acid + 3-methylbutyl acetate and water + propanoic acid + propan-2-yl acetate ternary mixtures including solubility and tie-line data was defined at (298.15 to 318.15) K under the pressure of 83.4 ± 1 kPa. The compositions of tie-line and bimodal curves were obtained by refractive index measurements. The phase diagrams show the type-1 behavior of liquid−liquid equilibrium (LLE). The capability of the solvents for the extraction of propanoic acid from aqueous solutions was determined by distribution coefficients and separation factors. The reliability of the experimental tie-line data was ascertained by Othmer−Tobias and Hand correlation equations. The tie-line data were correlated with nonrandom two-liquid (NRTL) and universal quasi-chemical (UNIQUAC) models. The binary interaction parameters of the models were reported. Excellent agreement was observed between the experimental data and the correlated values.

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Section: Resultsmentioning

confidence: 99%

“…During the experiments, bidistilled water was used. Table shows the refractive indices of the pure substances at 293.15 K along with the corresponding literature values. ,− …”

Section: Methodsmentioning

confidence: 99%

Phase Equilibrium Study of the Aqueous Solution of Propanoic Acid with Acetates at Different Temperatures

2021

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“…Estimating the nonrandom two-liquid (NRTL) and the universal quasichemical activity coefficient (UNIQUAC) models have been the subject of many studies so far. − ,− Rashtchian et al investigated the thermodynamic phase behavior of multicomponent and multiphase systems using a genetic algorithm as an optimization method to estimate the interaction parameters of thermodynamic models. They calculated the binary interaction parameters of NRTL, Wilson, and UNIQUAC models for a number of VLE, VLLE, LLE systems and compared them with the literature data .…”

Section: Introductionmentioning

confidence: 99%

Experimental Data and Thermodynamic Modeling of the Liquid–Liquid Equilibrium Ternary System (Water + Acetic Acid + 1-Octanol) at Several Temperatures

2022

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The experimental data of the solubility curve and the tie line for the ternary system containing compounds of water, acetic acid, and 1-octanol were studied over the temperature range (298 to 328) K and atmospheric pressure. This ternary system showed the behavior of type 1 liquid–liquid equilibrium (LLE) systems. Also, to test the tie line consistency, the obtained experimental data were correlated with Othmer-Tobias and Han equations. Distribution coefficients, selectivity factors, and percentage of extraction were determined to evaluate the extracting capacity of the solvent. Interaction parameters of the nonrandom two-liquid (NRTL) and universal quasichemical (UNIQUAC) thermodynamic models were estimated using a genetic algorithm (GA) and particle swarm optimization (PSO) which are evolutionary optimization methods. The mean RMSD values between the calculated and experimental mass fractions of the NRTL and UNIQUAC models using GA were 0.0047 and 0.0089, and using PSO were 0.0023 and 0.0042, respectively. The RMSD values indicate that the NRTL and UNIQUAC models are suitable for describing the phase behavior of the studied LLE systems and the accuracy of the PSO method is slightly more than that of the GA.

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“…Wang et al measured the LLE data for the ternary systems ethanol + ethyl methyl carbonate + ILs at 298.15 K under 101.3 kPa . Roque et al determined LLE data for ternary systems of water + acetic acid + acetate esters at 293.2 and 303.2 K and 95 kPa . Toikka et al presented LLE data for the quaternary system propionic acid n -butanol n -butyl propionatewater at 303.15 K .…”

Section: Introductionmentioning

confidence: 99%

“…10 Roque et al determined LLE data for ternary systems of water + acetic acid + acetate esters at 293.2 and 303.2 K and 95 kPa. 11 Toikka et al presented LLE data for the quaternary system propionic acidn-butanoln-butyl propionatewater at 303.15 K. 12 Tan et al reported LLE for ternary systems of 2-pentanone/ mesityl oxide + catechol + water at 298.2, 318.2, and 333.2 K. 13 However, LLE data containing SBA and SBAC are scarce in the literature. Li et al measured the LLE data of the ternary system of water + SBAC + SBA in order to provide basic data for the acetic acid recovery process.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium of the Ternary System sec-Butyl Acetate + sec-Butyl Alcohol + Ethylene Glycol at 298.2, 308.2, and 318.2 K

et al. 2019

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Liquid−liquid equilibrium (LLE) data for the ternary system sec-butyl alcohol + sec-butyl acetate + ethylene glycol were determined at 298.2, 308.2, and 318.2 K under 101.3 kPa. The extraction capacity was represented by separation factors. Separation factors at the studied temperatures are in the range of 1.33−19.66. Also, separation factors decrease with the rise of temperature in general. The nonrandom two-liquid and universal quasi-chemical models were applied to correlate the experimental LLE data measured, and the corresponding binary interaction parameters were obtained. The overall root-meansquare deviation is less than 0.4%. Also, the reliability of binary interaction parameters was validated by the topological analysis based on the Gibbs tangent plane test using a graphical user interface.

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Liquid-liquid equilibrium data for ternary systems of water + acetic acid+ acetate esters at 293.2 K and 303.2 K and ≈ 95 kPa

Cited by 12 publications

References 27 publications

Phase Equilibrium Study of the Aqueous Solution of Propanoic Acid with Acetates at Different Temperatures

Phase Equilibrium Study of the Aqueous Solution of Propanoic Acid with Acetates at Different Temperatures

Experimental Data and Thermodynamic Modeling of the Liquid–Liquid Equilibrium Ternary System (Water + Acetic Acid + 1-Octanol) at Several Temperatures

Liquid–Liquid Equilibrium of the Ternary System sec-Butyl Acetate + sec-Butyl Alcohol + Ethylene Glycol at 298.2, 308.2, and 318.2 K

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