Experimental study of liquid–liquid equilibriam for the ternary systems of water, 1,2-Dimethoxyethane and four solvents at 303.2 K

Lin, Song; Xu, Mingyi; Han, Mai; Yan, Houchun; Pang, Yufan; Li, Qingsong

doi:10.1016/j.jct.2022.106722

Cited by 4 publications

(4 citation statements)

References 34 publications

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“…The published literature's binary solubility of water and MIBC, MIBK, MIPK, and benzyl alcohol was compared with experimental values. Table3displays the comparison of the two data, and it shows that the binary solubility values measured by the experiment are approximately the same as those in the published literature.20−32 The formulas shown below can be used to calculate the D and S values of the four systems, and the extraction capacity can be judged according to the values33…”

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confidence: 61%

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Experimental Study and Thermodynamic Modeling of Ternary Liquid–Liquid Equilibrium of Water + 2,2,2-Trifluoroethanol + Four Solvents at 298.2 K

et al. 2022

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For the separation of 2,2,2-trifluoroethanol in water, two alcohols and two ketones were chosen as extractants for experiments at 101.3 kPa and 298.2 K. The liquid−liquid equilibrium data for water + 2,2,2-trifluoroethanol + (4-methyl-2-pentanol, methyl isobutyl ketone, methyl isopropyl ketone, and benzyl alcohol) were measured under these conditions. The separation effects of the four solvents were assessed by the distribution coefficient (D) and the separation factor (S). Meantime, the interaction parameters were obtained by fitting the experimental data using NRTL and UNIQUAC models, and both values of AAD and rmsd were less than 0.43%. The GUI-MATLAB series of topological analysis tools were used to check the accuracy of the measured values with the binary interaction parameters.

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confidence: 61%

“…The formulas shown below can be used to calculate the D and S values of the four systems, and the extraction capacity can be judged according to the values where w represents the mass fraction of the substance, 1 and 2 stand for water and TFE, I and II stand for the water-rich and the organic layer, respectively.…”

Section: Results and Discussionmentioning

confidence: 99%

Experimental Study and Thermodynamic Modeling of Ternary Liquid–Liquid Equilibrium of Water + 2,2,2-Trifluoroethanol + Four Solvents at 298.2 K

et al. 2022

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“…Organic solvents have been used as extractants in industry, while some extractants such as ethylene glycol, glycerol, 1-hexanol, cyclohexanol, and dimethyl sulfoxide are commonly used in industry. , Wang et al used cyclohexanol as the extractant to separate the lowest boiling point azeotrope of methanol and methylal, measured the vapor–liquid equilibrium (VLE) data, and successfully used cyclohexanol to separate a methanol and methylal azeotrope system using simulation software. In order to separate the azeotropic system of water and dimethyl ether, Lin et al used extractants such as n -heptanol, isopropyl ether, 4-methyl-2-pentanol, and 1-hexanol. Additionally, two thermodynamic models, NRTL and UNIQUAC, were well fitted.…”

Section: Introductionmentioning

confidence: 99%

Isobaric Vapor–Liquid Equilibrium of Ethyl Acetate + 1-Hexanol, Methanol + 1-Hexanol, and n-Heptane + Cyclohexanol Binary System at 101.3 kPa

Zhou,

Hu,

Qiu

et al. 2023

J. Chem. Eng. Data

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The fundamental component of the data used in chemical calculations is vapor−liquid equilibrium (VLE) information. The VLE data between several routinely used extractants and chemicals often utilized in industry still have some gaps, nevertheless. The isobaric phase equilibrium values of ethyl acetate + 1-hexanol, methanol + 1-hexanol, and n-heptane + cyclohexanol at 101.3 kPa were measured by using a modified Rose VLE still. The accuracy of experimental data was verified using two test techniques, the Van Ness and Fredenslund tests, and the final experimental data were highly correlated. The NRTL model, UNIQUAC model, and WILSON model were used to correlate the data, and binary interaction parameters between the components were derived. The three systems all meet the data requirements with respect to the root-mean-square deviation (RMSD) and average absolute deviation (AAD) of temperature being less than 0.1 and the RMSD and AAD of the vapor phase mole fraction being less than 0.01. The experimental and predicted values of all data points are in good agreement, and they all meet the requirements outlined in the process design. Additionally, it is discovered that the system under study behaves optimally throughout the whole research domain.

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“…In this work, we obtained liquid–liquid equilibrium (LLE) data at 101.3 kPa for the ternary system of 2-ethyl-1-hexanol + 1,2-propanediol + extractant (water and n -heptane) at 303.2, 313.2, and 323.2 K. According to the calculated distribution coefficient ( D ) and selectivity coefficient ( S ), the extraction performance of the two extractants at different temperatures was evaluated and analyzed. Then, the NRTL and UNIQUAC models were correlated with the experimental data and regressed on each model binary interaction parameter.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium Measurement and Thermodynamic Modeling for Ternary Systems of 2-Ethyl-1-hexanol + 1,2-Propanediol + (Water and n-Heptane) at Different Temperatures

Wei

Zhao

et al. 2023

J. Chem. Eng. Data

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To recover 2-ethyl-1-hexanol and 1,2-propanediol from waste polyester alcoholysis products, liquid−liquid equilibrium (LLE) data for the ternary system of 2ethyl-1-hexanol + 1,2-propanediol + (water, n-heptane) at different temperatures (303.2, 313.2, and 323.2 K) were studied at 101.3 kPa. The distribution coefficient (D) and selectivity coefficient (S) were used as indicators to assess the separation effect. The NRTL and UNIQUAC models were used to correlate the experimental data and the root mean square deviation (RMSD) values were calculated to be less than 0.75 and 0.97%, respectively. Finally, the consistency between the experimental data and the regression parameters was verified using the GUI-MATLAB tool. σ-Profiles are used to discuss the interactions of substances in this work. It was found that both extractants could separate and extract 2-ethyl-1-hexanol and 1,2-propanediol effectively, with water being more effective.

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Experimental study of liquid–liquid equilibriam for the ternary systems of water, 1,2-Dimethoxyethane and four solvents at 303.2 K

Cited by 4 publications

References 34 publications

Experimental Study and Thermodynamic Modeling of Ternary Liquid–Liquid Equilibrium of Water + 2,2,2-Trifluoroethanol + Four Solvents at 298.2 K

Experimental Study and Thermodynamic Modeling of Ternary Liquid–Liquid Equilibrium of Water + 2,2,2-Trifluoroethanol + Four Solvents at 298.2 K

Isobaric Vapor–Liquid Equilibrium of Ethyl Acetate + 1-Hexanol, Methanol + 1-Hexanol, and n-Heptane + Cyclohexanol Binary System at 101.3 kPa

Liquid–Liquid Equilibrium Measurement and Thermodynamic Modeling for Ternary Systems of 2-Ethyl-1-hexanol + 1,2-Propanediol + (Water and n-Heptane) at Different Temperatures

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