Exploration of liquid-liquid equilibrium and interaction between guaiacol and water extracted by four ester solvents

Yan, Houchun; Lin, Song; Han, Yuanyuan; Han, Mai; Fan, Wenyang; Li, Qingsong

doi:10.1016/j.jct.2022.106780

Cited by 9 publications

(2 citation statements)

References 41 publications

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“…The assessment of the extraction capacity of the solvent is often done using the distribution coefficient ( D ) and separation factor ( S ) calculated by the following equation: D 1 = w 3 I / w 3 I I D 2 = w 2 I / w 2 I I S = false( w 2 normalI / w 2 normalI normalI false) / false[ ( w 3 I / w 3 I I ) false] = D 2 / D 1 where w 2 I and w 2 II are the mass fraction of DFE in the organic phase and aqueous phase, respectively; w 3 I and w 3 II are the mass fraction of solvents in the two phases, respectively; D 1 is the distribution coefficient of water; and D 2 is the distribution coefficient of DFE.…”

Section: Experimental Consequences and Discussionmentioning

confidence: 99%

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Liquid–Liquid Equilibrium Measurement and Thermodynamic Modeling of the Ternary System (Water + 2,2-Difluoroethanol + 1-Hexanol/1-Heptanol/1-Octanol/1-Nonanol) at 303.2 K

Zhen,

Li,

Yan

et al. 2023

J. Chem. Eng. Data

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In this study, we measured the liquid–liquid equilibrium (LLE) data of the ternary system {water + 2,2-difluoroethanol + solvent (1-hexanol, 1-heptanol, 1-octanol, and 1-nonanol)} at 303.2 K and 101.3 kPa. The distribution coefficient (D) and separation factor (S) of the solvent were calculated from the experimental data to examine the extraction performance of the solvent, and the results showed that the solvent extraction capacity increased with the increase in the number of carbon atoms. The NRTL and UNIQUAC activity coefficient models were applied to correlate the experimental values and optimize the binary interaction parameters. The reliability of the binary interaction parameters was verified by a hybrid surface analysis on the basis of the Gibbs energy topology. The root-mean-square error (RMSD) values of both models were below 0.01%, which implies that both models are suitable for correlating the LLE experimental data of this study. In addition, the interaction forces between the solvent and {water + 2,2-difluoroethanol} were also analyzed by σ-profile.

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Section: Experimental Consequences and Discussionmentioning

confidence: 99%

“…Study on the Ability of 1-Nonanol As Solvent and ThermodynamicsModeling. The assessment of the extraction capacity of the solvent is often done using the distribution coefficient (D) and separation factor (S) calculated by the following equation:22 …”

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confidence: 99%