Liquid-liquid phase of imidazolium-based ionic liquids in n-butyl acetate + n-butanol mixtures: Experimental measurements, quality testing, phase stability, thermodynamic modeling (2024)
- Authors:
- USP affiliated authors: BIAGGIO, FRANCISCO CARLOS - EEL ; SOUSA, MARIVONE NUNHO - EEL ; CASTILLO, PEDRO FELIPE ARCE - EEL ; GUIMARÃES, DANIELA HELENA PELEGRINE - EEL ; GARCIA, LUIS ALBERTO GALLO - EEL ; FREIRE, NIAN VIEIRA - EEL
- Unidade: EEL
- DOI: 10.1016/j.jiec.2023.12.056
- Subjects: LÍQUIDOS IÔNICOS; EQUILÍBRIO LÍQUIDO-LÍQUIDO
- Keywords: Ionic liquids; NRTL; Liquid-liquid equilibrium; Gamma-gamma approach; Phase stability
- Agências de fomento:
- Language: Inglês
- Abstract: The ester n-butyl acetate is an important chemical compound produced by esterification with n-butanol and used as solvent for pigments, vegetable oils and fats, and in the production of varnishes, coatings, waxes and resins. This work investigated the use of ionic liquids (ILs) as solvents in separation processes involving these substances. The ionic liquid 1-butyl-3-methylimidazolium chloride ([BMIM][Cl]) was synthesized, while 1-ethyl-3-methylimidazolium ethyl sulfate ([EMIM][EtSO4]) and 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]) were purchased. The liquid–liquid equilibrium (LLE) was analyzed based on the experimental measurements (binodal curve, tie-lines), σ-profiles analysis (COSMOTherm), experimental data quality tests, phase stability and thermodynamic modeling with NRTL for the n-butyl acetate + n-butanol + IL ([BMIM][Cl], [EMIM][EtSO4], [EMIM][BF4]) systems at 298.15 K and 101.3 kPa. Experimental results indicated that the studied systems had the LLE phase behavior of type I. Experiments and calculations showed that [EMIM][EtSO4] and [BMIM][Cl] had the best capacities to separate the azeotrope n-butanol and n-butyl acetate. All systems showed separation factors values higher than unity. Low deviations, in the compositions of both liquid phases, indicate that the NRTL model was able to analyze the phase stability and model the phase behavior of the n-butyl acetate + n-butanol + IL systems using gamma-gamma approach.
- Imprenta:
- Source:
- Título: Journal of industrial and engineering chemistry
- ISSN: 1226-086X
- Volume/Número/Paginação/Ano: v. 134, p. 260-270, 2024
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
-
ABNT
GARCIA, Luis A. Gallo et al. Liquid-liquid phase of imidazolium-based ionic liquids in n-butyl acetate + n-butanol mixtures: Experimental measurements, quality testing, phase stability, thermodynamic modeling. Journal of industrial and engineering chemistry, v. 134, p. 260-270, 2024Tradução . . Disponível em: https://doi.org/10.1016/j.jiec.2023.12.056. Acesso em: 29 dez. 2025. -
APA
Garcia, L. A. G., Marciano, C. H., Freire, N. V., Melo, L. F., Biaggio, F. C., Sousa, M. N., et al. (2024). Liquid-liquid phase of imidazolium-based ionic liquids in n-butyl acetate + n-butanol mixtures: Experimental measurements, quality testing, phase stability, thermodynamic modeling. Journal of industrial and engineering chemistry, 134, 260-270. doi:10.1016/j.jiec.2023.12.056 -
NLM
Garcia LAG, Marciano CH, Freire NV, Melo LF, Biaggio FC, Sousa MN, Guimarães DHP, Arce PF. Liquid-liquid phase of imidazolium-based ionic liquids in n-butyl acetate + n-butanol mixtures: Experimental measurements, quality testing, phase stability, thermodynamic modeling [Internet]. Journal of industrial and engineering chemistry. 2024 ; 134 260-270.[citado 2025 dez. 29 ] Available from: https://doi.org/10.1016/j.jiec.2023.12.056 -
Vancouver
Garcia LAG, Marciano CH, Freire NV, Melo LF, Biaggio FC, Sousa MN, Guimarães DHP, Arce PF. Liquid-liquid phase of imidazolium-based ionic liquids in n-butyl acetate + n-butanol mixtures: Experimental measurements, quality testing, phase stability, thermodynamic modeling [Internet]. Journal of industrial and engineering chemistry. 2024 ; 134 260-270.[citado 2025 dez. 29 ] Available from: https://doi.org/10.1016/j.jiec.2023.12.056 - Liquid-liquid phase of imidazolium-based ionic liquids in n-butyl acetate + n-butanol mixtures: Experimental measurements, quality testing, phase stability, thermodynamic modeling
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Informações sobre o DOI: 10.1016/j.jiec.2023.12.056 (Fonte: oaDOI API)
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