Liquid–liquid equilibria of the systems isobutyl acetate+isobutyl alcohol+water and isobutyl acetate+isobutyl alcohol+glycerol at different temperatures

Cháfer, Amparo; Torre, Javier de la; Montón, Juan B.; Lladosa, Estela

doi:10.1016/j.fluid.2008.01.010

Cited by 12 publications

(7 citation statements)

References 11 publications

(12 reference statements)

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“…As for the extractants of liquid–liquid extraction, recently, ionic liquids as a kind of new environmentally friendly green solvents are often considered to be the alternatives to replace traditional organic solvents because of their advantages, including low-volatility, thermal stability, and designability. − However, to our knowledge, no literatures have reported the liquid–liquid phase equilibrium for the ternary systems of IBAC + IBA + ILs until now. Cháfer et al reported the liquid–liquid equilibrium data for the system (IBAC + IBA + water/glycerol). Bai et al determined isobaric VLE data for the system (IBAC + IBA + N, N-dimethylacetamide).…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium of Isobutyl Acetate + Isobutyl Alcohol + Imidazolium-Based Ionic Liquids at 298.15 and 308.15 K

et al. 2019

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For separation of the azeotrope isobutyl acetate and isobutyl alcohol, imidazolium-based ionic liquids 1-hexyl-3-methylimidazolium hexafluorophosphate [Hmim][PF 6 ] and 1-octyl-3-methylimidazolium hexafluorophosphate [Omim][PF 6 ] were applied as the extractants in the extraction process. The liquid−liquid equilibrium (LLE) data for the ternary systems isobutyl acetate + isobutyl alcohol + ([Hmim][PF 6 ]/[Omim][PF 6 ]) were determined at temperature of 298.15 and 308.15 K. To evaluate extraction performance of the ILs, the selectivity and distribution coefficient were calculated from the experimental data. The effect of the alkyl chain length of the cations and the temperature on the LLE for the systems were explored. In addition, the experimental LLE data were correlated by the NRTL model, and the binary interaction parameters of the NRTL model were optimized.

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Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium of Isobutyl Acetate + Isobutyl Alcohol + Imidazolium-Based Ionic Liquids at 298.15 and 308.15 K

et al. 2019

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“…For separation of such azeotropes, some special separation technologies are required such as azeotropic distillation, − extractive distillation, − reactive distillation, salt addition distillation, , and pressure-swing distillation . For the mixture of butanol and butyl acetate, Cai et al used the extractive distillation with the extractant of [OMIM]PF 6 to separate butanol and butyl acetate.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium Measurements and Correlation for Ternary Systems (Butyl Acetate + 1-Butanol + Ethylene Glycol/1,3-Propanediol/Ethanolamine) at 298.15 K

et al. 2019

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For separation of the azeotropic mixture butyl acetate and 1butanol, ethylene glycol, 1,3-propanediol, and ethanolamine were chosen as the extractants. The phase equilibria for the ternary systems (butyl acetate + 1-butanol + ethylene glycol/1,3-propanediol/ethanolamine) were investigated, and the liquid−liquid equilibrium (LLE) data were determined at 298.15 K and 101.3 kPa. During the LLE measurement, the equilibrium was achieved when the prepared ternary mixture was stirred for 2 h and settled for 12 h. To evaluate the extraction capacity of the solvents, the distribution constant (D) and selectivity (S) were calculated. From the comparison of the values of D and S, ethanolamine is the best extractive solvent among the three solvents. In the meantime, the nonrandom twoliquid (NRTL) and the universal quasi-chemical (UNIQUAC) models were applied to correlate the LLE data for the systems. The values of the root mean square deviations between the experimental LLE data and calculated values were less than 0.01. Also, the binary interaction parameters of the NRTL and UNIQUAC models were optimized.

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“…Regarding these kind of mixtures, no comparable data has been found in the open literature. The use of propane-1,2,3-triol as a separation agent by liquid–liquid extraction has been studied for isobutyl acetate + isobutyl alcohol, 2-propanone + methanol, 2-butanone + ethanol and 2-butanone + 2-propanol azeotropic binary mixtures. Cháfer et al shows the lack of ability of the propane-1,2,3-triol in the separation of isobutyl acetate + isobutyl alcohol, while Katayama et al consider propane-1,2,3-triol an interesting solvent in the separation of 2-propanone–methanol and 2-butanone–2-propanol by liquid–liquid extraction.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium in Mixtures Containing Propane-1,2,3-triol and Mixtures Containing Vegetable Oils at Atmospheric Pressure

Andreatta

Arposio

2014

J. Chem. Eng. Data

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Mutual solubility of propane-1,2,3-triol with pentane, hexane, heptane, or ethyl acetate and mutual solubility between different vegetable oils (sunflower oil, soybean oil, corn oil, and olive oil) with methanol or ethanol have been reported at temperatures ranging from (298.2 to 348.2) K and atmospheric pressure. Furthermore, the binodal curves for ethyl acetate + methanol or ethanol + propane-1,2,3-triol at (303.2, 313.2, and 323.2) K have been explored. A higher solubility has been found in the system containing ethanol than the system containing methanol. The GCA-EoS model has been used to represent these mixtures. The distribution coefficient of alcohol and the selectivity of propane-1,2,3triol in the ternary mixture of ethyl acetate + methanol or ethanol + propane-1,2,3triol have been evaluated by GCA-EoS model. These results indicate a more effective use of propane-1,2,3-triol as separation agent by liquid−liquid extraction in the binary mixture of ethyl acetate + methanol than ethyl acetate + ethanol. On the other hand, regarding the mixtures containing vegetable oil, the mutual solubility of alcohol in the phase rich in vegetable oil is bigger than the mutual solubility of vegetable oil in the phase rich in alcohol.

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Liquid–liquid equilibria of the systems isobutyl acetate+isobutyl alcohol+water and isobutyl acetate+isobutyl alcohol+glycerol at different temperatures

Cited by 12 publications

References 11 publications

Liquid–Liquid Equilibrium of Isobutyl Acetate + Isobutyl Alcohol + Imidazolium-Based Ionic Liquids at 298.15 and 308.15 K

Liquid–Liquid Equilibrium of Isobutyl Acetate + Isobutyl Alcohol + Imidazolium-Based Ionic Liquids at 298.15 and 308.15 K

Liquid–Liquid Equilibrium Measurements and Correlation for Ternary Systems (Butyl Acetate + 1-Butanol + Ethylene Glycol/1,3-Propanediol/Ethanolamine) at 298.15 K

Liquid–Liquid Equilibrium in Mixtures Containing Propane-1,2,3-triol and Mixtures Containing Vegetable Oils at Atmospheric Pressure

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