Separation of 1,3-dioxolane from its azeotropic aqueous solution by using Good's buffer ionic liquid [TMA][EPPS]

Gupta, Bhupender S.; Fang, Mei-Yueh; Lee, Ming‐Jer

doi:10.1016/j.fluid.2015.10.033

Cited by 11 publications

(9 citation statements)

References 47 publications

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“…The mental LLE data is available. 13,[15][16][17] Due to non-availability of experimental T-x data, lower critical solution temperature (LCST) and upper critical solution temperature (UCST) data for the chosen systems, the present models cannot be used to correlate such phenomena. 49 The obtained binary interaction parameters would be perfectly…”

Section: Comparative Analysis Between Ga-uniquac and Cs-uniquac Correlationsmentioning

confidence: 99%

“…[10][11][12][13][14][15] More recently, application of Good's Buffer Ionic Liquids (GBILs) particularly tetra-methyl ammonium 3-[4-(2hydroxymethyl)-1-piperazinyl]-propanesulfonate [TMA][EPPS] have shown promising results to separate such cyclic di-ether mixtures. 16,17 Multicomponent mixtures of 1,3-dioxolane + water + MOPS/ HEPPS/[TMA][EPPS] and 1,4-dioxane + water + HEPPS/[TMA]…”

mentioning

confidence: 99%

“…[EPPS] show Treybal type I, type II, and type IV phase splitting behaviors as shown in Figure 1. 12,[15][16][17] Here, type I and type II denote the formation of monophasic (L) and biphasic (2 L) regions while type IV denotes the appearance of a biphasic region in equilibrium with a pure component solid phase (denoted as an S + 2 L region). 18 Additionally, two separate solid plus liquid (S + L) phases are observed, adjacent to the (S + 2 L) region, where one signifies saturated solvent in cyclic ether rich phase and the other to the right describing saturated solvent in aqueous rich phase.…”

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confidence: 99%

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Application of nature‐inspired algorithms with generalized Pitzer‐Debye‐Hückel (PDH) refinement for liquid liquid equilibria (LLE) correlation in cyclic di‐ether systems

et al. 2021

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Metaheuristic algorithms such as the genetic algorithm (GA) and cuckoo search (CS) algorithms have been widely used for phase equilibria computation. In the present work, correlation of the liquid-liquid splitting of 1,3-dioxolane + water and 1,4-dioxane + water mixtures using the buffers 3-n-morpholino-propanesulfonic acidacid (HEPPS), and the ionic-liquid (IL) tetra-methyl-ammonium 3-[4-(2-hydroxymethyl)-1-piperazinyl]propanesulfonate [TMA][EPPS] is performed by the GA-NRTL, CS-NRTL, GA-UNI-QUAC, and CS-UNIQUAC methods. Thermodynamically consistent binary interaction parameters are obtained after a rigorous investigation of the dimensionless excess Gibbs free energy of mixing G M (L)/RT topology thereby satisfying the Gibbs minor common tangent phase stability test. The results indicate that the GA-UNIQUAC method performs the best for correlating the biphasic regions with very high quantitative accuracies and well-resolved G M (L)/RT surface description. Furthermore, the UNIQUAC model is significantly enhanced by incorporating a thermodynamically consistent extended Pitzer-Debye-Hückel* (PDH*) contribution term considering weak electrostatic long-range interactions within the IL-rich phases.

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Section: Comparative Analysis Between Ga-uniquac and Cs-uniquac Correlationsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Application of nature‐inspired algorithms with generalized Pitzer‐Debye‐Hückel (PDH) refinement for liquid liquid equilibria (LLE) correlation in cyclic di‐ether systems

et al. 2021

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“…The experimental LLE and SLLE tie-line data for the investigated ternary system of (1,4-dioxane + water + [TMA][EPPS]) were measured at 298.15 K and 101 kPa by using the similar method as explained in our previous articles. , The schematic diagram of the apparatus is available in the literature . The experimental setup includes an equilibrium cell made of glass, a magnetic stirrer, a thermostatic water bath, and a precise temperature probe.…”

Section: Experimental Sectionmentioning

confidence: 99%

“…15 Moreover, the high concentration of salt used in the separation process changes the optimum pH of the medium, and thus it may cause the damage to the biological molecules. 16 To overcome the above-mentioned problems associated with conventional salts, in our previous works 17,18 we have reported a biocompatible and self-buffering IL, tetra-methylammonium 4-(2-hydroxyethyl)-1-piperazinepropanesulfonate [TMA]-[EPPS] as an alternative to the corrosive salt. This IL is synthesized by using a commonly used buffer, EPPS, as an anion and terta-methylammonium as a cation.…”

Section: Introductionmentioning

confidence: 99%

Application of Buffer-Based Ionic Liquid in the Separation of 1,4-Dioxane from Its Azeotropic Aqueous Solution

2018

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We have found that the ionic liquid (IL) [TMA][EPPS] could induce liquid−liquid phase splitting in the aqueous solution of 1,4-dioxane at ambient conditions. This IL is composed of tetramethylammonium (TMA) as a cation and a biological buffer, 4-(2-hydroxyethyl)-1-piperazinepropanesulfonic acid (EPPS), as an anion. The efficiency of this buffer-based IL for separating 1,4-dioxane from its aqueous solution has been evaluated on the basis of the liquid−liquid equilibrium (LLE) and solid−liquid−liquid equilibrium (SLLE) data of 1,4-dioane + water + [TMA][EPPS] at 298.15 K and under atmospheric pressure. The experimental LLE phase boundary data were correlated with an empirical equation and the effective excluded volume (EEV) model, respectively. The consistency of the LLE tie-line data was confirmed by using the Othmer−Tobias model. The binary interaction parameters of the NRTL model for each pair were obtained by correlating the experimental LLE and SLLE tie-line data. By using [TMA][EPPS] as an auxiliary agent, the maximum concentrations of 1,4-dioxane (97.8 wt %) in the organic-rich phase is greater than the azeotropic compositions (87.82 wt %) of the corresponding aqueous system. It clearly indicates that [TMA][EPPS] can be served as a high efficiency, noncorrosive, and biocompatible green agent for recovering high purity of 1,4-dioxane from its aqueous solution.

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Fate of 1,3-dioxolane in the troposphere: kinetics, mechanism with theoretical support, and atmospheric implications

et al. 2023

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Separation of 1,3-dioxolane from its azeotropic aqueous solution by using Good's buffer ionic liquid [TMA][EPPS]

Cited by 11 publications

References 47 publications

Application of nature‐inspired algorithms with generalized Pitzer‐Debye‐Hückel (PDH) refinement for liquid liquid equilibria (LLE) correlation in cyclic di‐ether systems

Application of nature‐inspired algorithms with generalized Pitzer‐Debye‐Hückel (PDH) refinement for liquid liquid equilibria (LLE) correlation in cyclic di‐ether systems

Application of Buffer-Based Ionic Liquid in the Separation of 1,4-Dioxane from Its Azeotropic Aqueous Solution

Fate of 1,3-dioxolane in the troposphere: kinetics, mechanism with theoretical support, and atmospheric implications

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