Vapor–liquid equilibrium in the ternary system isobutyl alcohol + isobutyl acetate + N, N-dimethyl acetamide and the binary systems isobutyl alcohol + N, N-dimethyl acetamide, isobutyl acetate + N, N-dimethyl acetamide at 101.3 kPa

Bai, Xue; Cui, Xianbao; Yu, Xufeng; Zhang, Ying; Feng, Tingting; Liu, Haofei; Zhang, Kai; Fu, Yanli; Cheng, Qinglong

doi:10.1016/j.fluid.2017.06.023

Cited by 5 publications

(3 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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). Munoz et al separated the azeotrope of (IBA + IBAC) by extractive distillation and pressure-swing distillation.…”

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

View full text Add to dashboard Cite

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.

show abstract

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

View full text Add to dashboard Cite

show abstract

“…Under the action of N , N -dimethylacetamide, IBAC transformed into a more volatile component, effectively eliminating the azeotropic phenomenon between IBA and IBAC. Selecting an excellent extractant is crucial in the processes of extraction and extractive distillation . Generally, the following factors should be considered when selecting an extractant: (i) vapor pressure, which affects solvent loss and energy consumption in solvent recovery processes; (ii) viscosity, which impacts mass transfer and the cost of solvent transport; (iii) thermodynamic stability, which influences the solvent’s regeneration cycle; and (iv) the price and corrosiveness of the solvent .…”

Section: Introductionmentioning

confidence: 99%

Mechanistic Investigation of Isobutanol/Isobutyl Acetate Separation by Extraction Using Low-Transition Temperature Mixtures

Yan,

Li,

Meng

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

In this work, low-transition temperature mixtures (LTTMs) are used for the first time in the separation of isobutanol (IBA) and isobutyl acetate (IBAC) by extraction, and the relationship between weak interactions and phase equilibrium behavior is systematically investigated. LTTMs are screened using the conductor-like screening model segment activity coefficient (COSMO-SAC), with ethylene glycol as the hydrogen bond donor (HBD) and benzyltrimethylammonium chloride, choline chloride, and tetramethylammonium chloride as the hydrogen bond acceptor (HBA). The effectiveness of the screened LTTMs is further demonstrated through liquid–liquid equilibrium (LLE) experiments, and the NRTL model is chosen to correlate the experimental data for process design. Finally, quantum chemical calculations provide insights into the effect of the structure of LTTMs on the LLE of the IBA/IBAC system, and the results show that the extraction properties are mainly dependent on the type of HBAs and increase with the enhanced electron-donating ability of the moiety.

show abstract

“…Marrufo et al used MIBK as the proper extractant to predict VLE data of 1-hexene + n -hexane + methyl isobutyl ketone. Bai et al measured VLE data of isobutyl alcohol, N , N -dimethyl acetamide, and isobutyl acetate at 101.3 kPa. DMAC was selected as the extractant by computer-aided molecular design.…”

Section: Introductionmentioning

confidence: 99%

Vapor–Liquid Equilibrium for Binary of 1-Butanol + N,N-Dimethylacetamide and Methyl Isobutyl Ketone + N,N-Dimethylacetamide at 101.3 kPa

Wang

Zhang

et al. 2019

J. Chem. Eng. Data

View full text Add to dashboard Cite

Vapor–liquid equilibrium data for the binary systems of 1-butanol + N,N-dimethylacetamide and methyl isobutyl ketone + N,N-dimethylacetamide were measured at 101.3 kPa. The vapor–liquid equilibrium experiments of two systems were carried out in the modified Rose vapor recirculating-type equilibrium still. Van Ness and Herington tests were used to check the thermodynamic consistency of the experimental data. After meeting the thermodynamic consistency test, the nonrandom two-liquid, universal quasichemical, and Wilson models were used for correlation and regression of the experimental data. The binary interaction parameters of each model for the two binary systems were obtained. Comparing the equilibrium temperature and vapor-phase mole fraction for the experimental value and the calculated value, it shows that the two models had a good correlation with the experimental data.

show abstract

Vapor–liquid equilibrium in the ternary system isobutyl alcohol + isobutyl acetate + N, N-dimethyl acetamide and the binary systems isobutyl alcohol + N, N-dimethyl acetamide, isobutyl acetate + N, N-dimethyl acetamide at 101.3 kPa

Cited by 5 publications

References 33 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

Mechanistic Investigation of Isobutanol/Isobutyl Acetate Separation by Extraction Using Low-Transition Temperature Mixtures

Vapor–Liquid Equilibrium for Binary of 1-Butanol + N,N-Dimethylacetamide and Methyl Isobutyl Ketone + N,N-Dimethylacetamide at 101.3 kPa

Contact Info

Product

Resources

About