Solubility in the system constituted by acetic acid, n-propanol, water, and n-propyl acetate

a b s t r a c tSolubility, critical states and liquid-liquid equilibrium (LLE) data for the quaternary system acetic acid-ethanol-ethyl acetate-water and for the ternary subsystems acetic acid-ethyl acetate-water and ethanol-ethyl acetate-water were studied at 303.15 K and 313.15 K and atmospheric pressure. Binodal surfaces, binodal curves, tie-lines and compositions of critical points were determined. In order to construct the binodal surfaces and critical curves of the quaternary system, five quaternary sectional planes with several different ratios of concentration of acetic acid to ethanol were studied. Experimental LLE data were compared with the values calculated by UNIFAC and NRTL models, and it was found that the experimental and calculated data are in good agreement.

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“…We presented experimental results for a system with n-propyl acetate synthesis reaction in recent papers [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Solubility, liquid–liquid equilibrium and critical states for the quaternary system acetic acid–ethanol–ethyl acetate–water at 303.15K and 313.15K

Toikka

Samarov

Trofimova

et al. 2014

Fluid Phase Equilibria

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“…Critical curves which correspond to chemical equilibrium compositions under polythermal conditions in the acetic acid ± n-propyl alcohol ± n-propyl acetate ± water system. 29,48,79 C1, C2 are the critical points in the corresponding curves with indication of the temperatures.…”

Section: Discussionmentioning

confidence: 99%

“…The data on the combined phase and chemical equilibrium in the heterogeneous composition regions were reported only in a few experimental works (for example, see Refs. 48,49,54). The diagram depicted in Fig.…”

Section: Iii2c Methyl Acetate ± Methanol ± Isopropyl Acetate ± Isomentioning

confidence: 99%

“…Experimental data on the solubility and compositions of the critical points in the acetic acid ± n-propyl alcohol ± n-propyl acetate ± water system at 313.15 K were obtained in the study of Toikka et al 48 In addition to detailed information about the position of the solubility surface in the quaternary system, it was proven on the basis of the performed study that there is a composition region simultaneously belonging to both the chemical equilibrium surface and the solubility surface, i.e., an intersection of these surfaces in the concentration space (tetrahedron) was ascerMeCO2Pr n + H2O MeCO2H + Pr n OH tained. It was also shown for the first time that there are liquid ± liquid critical points that simultaneously belong to chemical equilibrium.…”

Section: Iii1g Acetic Acid ± N-propyl Alcohol ±N-propyl Acetate ± mentioning

confidence: 99%

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Phase and chemical equilibria in multicomponent fluid systems with a chemical reaction

Тойкка

Samarov

2015

Russ. Chem. Rev.

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“…Due to the error encountered, these data would not be considered for comparison. Toikka and Tarasova [23], analyzed the 4 vapour compositions that have also been included in Figure 5. It can be seen that these points lie on the experimental vapour curve here presented here, supporting the reliability of the new data.…”

Section: Vapour-liquid and Vapour-liquid-liquid Equilibrium Datamentioning

confidence: 99%

Phase equilibria of the water+1-butanol+toluene ternary system at 101.3kPa

Gomis

Font

Saquete

et al. 2015

Fluid Phase Equilibria

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Please cite this article as: Vicente Gomis, Alicia Font, María Dolores Saquete, Jorge García-Cano, Phase equilibria of the water + 1-butanol + toluene ternary system at 101.3kPa, Fluid Phase Equilibria http://dx.doi.org/10.1016/j.fluid. 2014.10.038 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.Phase equilibria of the water + 1-butanol + toluene ternary system at 101.3 kPa Vicente Gomis 1 , Alicia Font, María Dolores Saquete, Jorge García-Cano University of Alicante. PO Box 99 E-03080 Alicante (Spain) *Corresponding author:Tel. +34 965903400. vgomis@ua.es HighlightsThe phase equilibria of the system water + 1-butanol + toluene have been studied.Isothermal liquid-liquid equilibrium data at 313.15 K was determined.Isobaric vapour-liquid-liquid equilibrium data at 101.3 kPa was also determined.Data obtained has been checked against literature data and those predicted with binary interaction parameters.All experimental data have been correlated with thermodynamic models. AbstractIsobaric vapour-liquid and vapour-liquid-liquid equilibrium data for the water + 1-butanol + toluene ternary system were measured at 101.3 kPa with a modified VLE 602 Fischer apparatus. In addition, the liquid-liquid equilibrium data at 313.15 K were measured and compared with data from other authors at different temperatures. The system exhibits a ternary heterogeneous azeotrope whose temperature and composition have been determined by interpolation. The thermodynamic consistency of the experimental vapour-liquid and vapour-liquid-liquid data was checked by means of the Wisniak's L i /W i consistency test. Moreover, the vapour-liquid and the liquid-liquid equilibrium correlation for the ternary system with NRTL and UNIQUAC models, together with the prediction made with the UNIFAC model, were studied and discussed.

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Solubility in the system constituted by acetic acid, n-propanol, water, and n-propyl acetate

Cited by 24 publications

References 10 publications

Solubility, liquid–liquid equilibrium and critical states for the quaternary system acetic acid–ethanol–ethyl acetate–water at 303.15K and 313.15K

Solubility, liquid–liquid equilibrium and critical states for the quaternary system acetic acid–ethanol–ethyl acetate–water at 303.15K and 313.15K

Phase and chemical equilibria in multicomponent fluid systems with a chemical reaction

Phase equilibria of the water+1-butanol+toluene ternary system at 101.3kPa

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