Influence of inorganic salts on the liquid–liquid equilibrium of water + furfuryl alcohol + cyclopentanone system at 298.15 K

Kunthakudee, Naphaphan; Pancharoen, Ura; Fulajtárová, Katarína; Soták, Tomáš; Hronec, Milan; Ramakul, Prakorn

doi:10.1007/s11696-017-0283-8

Cited by 3 publications

(6 citation statements)

References 21 publications

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“…Thus, water is intended as a solvent for separating the EG–EGDA mixture system in this paper. The addition of salt into the mixture system will cause great changes in the composition and affect the liquid–liquid equilibrium. − Salt mainly affects the solubility of organic components in aqueous–organic solvent mixtures . On the basis of the theory of “similarity and intermiscibility”, in the presence of salt, the association of salt ions with water molecules changes the similarity of the molecule structure between water and organic solvent, which will lead to changes of solubility between water and organic solvent.…”

Section: Introductionmentioning

confidence: 99%

Salt Effect on the Liquid–Liquid Equilibrium for the Water–Ethylene Glycol–Ethylene Glycol Diacetate System

Shen

et al. 2019

J. Chem. Eng. Data

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The salt effect on the liquid–liquid equilibrium (LLE) for the water–ethylene glycol (EG)–ethylene glycol diacetate (EGDA) system was studied at 303.2 K and 101.3 kPa. The influence of different NaCl concentrations (0, 5, 15, and 20 wt %) and salt types (NaCl, CaCl2, and KCl) on the equilibrium systems was researched. The distribution coefficients and separation factors were calculated to evaluate the effect of the EG extraction. The results show that the addition of salt increases the two-phase region of the equilibrium system and the order of the effect of salt types is as follows: CaCl2 > NaCl > KCl. The reliability of the experimental data was validated by the Eisen–Joffe equation. The NRTL model was applied to correlate the experimental data; the low values of MAD and RMSD confirmed the good correlation of the experimental results.

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Section: Introductionmentioning

confidence: 99%

Salt Effect on the Liquid–Liquid Equilibrium for the Water–Ethylene Glycol–Ethylene Glycol Diacetate System

Shen

et al. 2019

J. Chem. Eng. Data

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“…From another point of view, it is known that Mg 2+ ion is easily hydrated and facilitates the salting-out effect compared toNa + because of its smaller ionic size and higher hydration energy has also been reported with respect to ion size in a research on the salt effect in the extraction of furfuryl alcohol with cyclopentanone solvent. 34 In all cases, the effect of salts was more significant with the higher used concentration. In solvation of salt ions in the aqueous solutions, water is the preferred component.…”

Section: Resultsmentioning

confidence: 84%

“…32 Figure 2. Mass fraction of water in cyclopentanone, w 12 , (+), compared to the literature data of blue circle, (○), 33 red circle, (○), 34 The solute distribution coefficient (D 2 ) represents the solutecarrying capability of the solvent, large value of this parameter is desirable because less solvent will be required for the extraction of a specified amount. Also, separation factor (S) assesses the effectiveness of the solvent for extracting the solute from the aqueous phase, representing the solvent selectivity for the solute.…”

Section: Resultsmentioning

confidence: 99%

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Temperature and Salt Effects on the Liquid–Liquid Equilibrium of the Water + Cyclopentanone + (Propan-2-yl) Benzene System

et al. 2020

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The separation of cyclopentanone from aqueous solutions with recommended (propan-2-yl) benzene (cumene) solvent was investigated at different temperatures of 293.2, 298.2, and 308.2 K and with the effect of NaCl, Na 2 SO 4 , and MgSO 4 salts. In a wide mass fraction range of cyclopentanone, the solute distribution coefficients and separation factors were within (1.554−5.992) and (75.85−1944.97), respectively. The high separation factors corresponded to low solute concentrations and low temperatures. The effect of salts was investigated, and enhancements in the separation factor were achieved up to 24.7, 39.9, and 49.3% with 0.01 mass fraction of, respectively, NaCl, Na 2 SO 4 , and MgSO 4 in an aqueous phase. This order of salt effectiveness is consistent with the Gibbs free energy for the hydration of the constituent ions. The consistency of LLE data for the employed system, with and without salts, was ascertained with corresponding equations. For the modeling of obtained data, the well-known activity coefficient models of NRTL and UNIQUAC were used, and binary interaction parameters were determined. High accuracy of the models was revealed with root-mean-square deviations of less than 0.0053 and 0.0069, respectively.

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“…Reliable liquid–liquid equilibrium (LLE) data can support the separation design of water and FAL. The literature , has reported the liquid–liquid equilibrium (LLE) data of the ternary system for isopropyl ether, tertbutyl methyl ether, dichloromethane, methyl isobutyl methanol, ethyl acetate (EAC), methyl isobutyl ketone, furfural (FUR), and 1-butanol + water + FAL at 298.2 K. There is also some literature − that has studied the influence of salt on the LLE of cyclopentanone, FUR, and 1-butanol + water + FAL ternary systems.…”

Section: Introductionmentioning

confidence: 99%

Measurement and Correlation of Liquid–Liquid Equilibrium Data for Ternary Systems of Water + Furfuryl Alcohol + (1-Pentanol and n-Propyl Acetate) at Different Temperatures

Han

Yan

et al. 2021

J. Chem. Eng. Data

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Liquid–liquid equilibrium (LLE) data for the ternary mixture of water + furfuryl alcohol (FAL) + {1-pentanol and n-propyl acetate} was measured in 101.3 kPa at 303.2, 313.2, and 323.2 K. The separation factor (S) and distribution coefficient (D) appraised the utility of extracting FAL from water. The experimental data were accurately correlated by the nonrandom two-liquid (NRTL) and the universal quasi-chemical (UNIQUAC) models with the root-mean-square deviation (RMSD%) values. The values are less than 0.37%. The relevant binary interaction parameters were calculated. The GUI-MATLAB was used to check the consistency of the calculated binary interaction parameters and liquid–liquid equilibrium data. The σ-profiles can analyze the molecular interaction, which further confirms the accuracy of the experimental results. The excellent performance of 1-pentanol and n-propyl acetate in the extraction of FAL from an aqueous solution was shown.

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Influence of inorganic salts on the liquid–liquid equilibrium of water + furfuryl alcohol + cyclopentanone system at 298.15 K

Cited by 3 publications

References 21 publications

Salt Effect on the Liquid–Liquid Equilibrium for the Water–Ethylene Glycol–Ethylene Glycol Diacetate System

Salt Effect on the Liquid–Liquid Equilibrium for the Water–Ethylene Glycol–Ethylene Glycol Diacetate System

Temperature and Salt Effects on the Liquid–Liquid Equilibrium of the Water + Cyclopentanone + (Propan-2-yl) Benzene System

Measurement and Correlation of Liquid–Liquid Equilibrium Data for Ternary Systems of Water + Furfuryl Alcohol + (1-Pentanol and n-Propyl Acetate) at Different Temperatures

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