Systems Involving cis-or trans-Dichloroethylene and an Acetal or Ether

Flom, D. G.; Alpert, Norman; Elving, Philip J.

doi:10.1021/ie50497a051

Cited by 15 publications

(4 citation statements)

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“…28 The experimental vapor pressure from this study was found to be consistent with our ebulliometric measurement; ebulliometric data published by Brazhnikov et al differ significantly from both datasets. Data by Flom et al 27 and Reddy et al 32 exhibit significant scatter, and data by Kobe and Mathews 29 and Albert et al 31 were measured in the high pressure region, which is out of the scope of this work. Heat capacities from McEachern and Kilpatrick 28 were considered up to 230 K (p = 1412 Pa, where the pVT correction does not play a significant role) after being validated by our Tian−Calvet DSC measurements at higher temperatures.…”

Section: Resultsmentioning

confidence: 83%

“…Dimethoxymethane: arc representation of vapor pressure data in the liquid phase. Diamonds, Flom et al (partially displayed); blue stars, McEachern and Kilpatrick; olive hexagonal stars, Brazhnikov et al; cyan left-pointing triangles, Reddy et al (partially displayed); red squares, this work (Ebulliometry); red solid line, data obtained by the SimCor method (see Section ). Data published by Kobe and Mathews and Albert et al are out of scale.…”

Section: Resultsmentioning

confidence: 97%

“…Dimethoxymethane: relative deviations ( p – p calc )/ p calc of vapor pressures p from the recommended values p calc calculated using the Cox equation, eq , with parameters listed in Table . Diamonds, Flom et al . (partially displayed); blue stars, McEachern and Kilpatrick; olive hexagonal stars, Brazhnikov et al; cyan left-pointing triangles, Reddy et al (partially displayed); magenta solid line, Kobe and Mathews (partially displayed); orange inverted triangles, Albert et al (partially displayed); red squares, this work (ebulliometry); dotted lines, absolute deviations.…”

Section: Resultsmentioning

confidence: 99%

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Vapor Pressures and Thermophysical Properties of Dimethoxymethane, 1,2-Dimethoxyethane, 2-Methoxyethanol, and 2-Ethoxyethanol: Data Reconciliation and Perturbed-Chain Statistical Associating Fluid Theory Modeling

et al. 2021

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As a continuation of our effort to establish reliable thermodynamic data for important industrial solvents, dimethoxymethane (CAS RN: 109-87-5), 1,2-dimethoxyethane (CAS RN: 110-71-4), 2-methoxyethanol (CAS RN: 109-86-4), and 2ethoxyethanol (CAS RN: 110-80-5) were studied. Vapor pressure was measured by ebulliometry for dimethoxymethane and by static method for 1,2-dimethoxyethane, 2-methoxyethanol, and 2ethoxyethanol. Heat capacities in the liquid phase of all four compounds were measured by Tian−Calvet calorimetry in the temperature interval (262−358) K. In the case of dimethoxymethane and 1,2-dimethoxyethane, this interval was shortened because of their volatility. The thermodynamic properties in the ideal gaseous state were calculated using the methods of statistical thermodynamics based on calculated fundamental vibrational frequencies and molecular structure data. Calculated ideal-gas heat capacities and experimental data on vapor pressures, liquid phase heat capacities, and vaporization enthalpies were treated simultaneously to obtain a consistent thermodynamic description.Comparisons with literature values are shown for all measured and derived properties. Furthermore, the developed recommended data were used to identify new molecular parameters for the studied solvents within the PC-SAFT (perturbed-chain statistical associating fluid theory) equation of state and to compare their performance with those published in earlier papers; improved performance of the new parameters was achieved.

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Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

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Vapor Pressures and Thermophysical Properties of Dimethoxymethane, 1,2-Dimethoxyethane, 2-Methoxyethanol, and 2-Ethoxyethanol: Data Reconciliation and Perturbed-Chain Statistical Associating Fluid Theory Modeling

et al. 2021

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“…Although several studies on temperature-dependent vapor pressure data of THF were reported, − the data sets by Papousek et al, Flom et al, Zhang et al, and Wu and Sandler (Figure ) cannot be proved to be fully thermodynamically consistent according to their analysis by Oonk’s arch representation, , which also could help to exclude the data that systematically deviate from others. The data presented by Pividal et al and Scott seem to be consistent, because they follow a trend of an arch.…”

Section: Resultsmentioning

confidence: 97%

Isobaric Vapor–Liquid Equilibria for Binary Mixtures of Biomass-Derived γ-Valerolactone + Tetrahydrofuran and 2-Methyltetrahydrofuran

et al. 2020

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2-Methyltetrahydrofuran (2-MeTHF) can be utilized as a renewable fuel additive, a component of P-fuel, and an alternative solvent for synthesis and catalysis. Tetrahydrofuran (THF) has also been proposed as a blend component and a surfactant additive. Since γ-valerolactone (GVL), which has been identified as a promising renewable platform molecule, can be converted to 2-MeTHF, it could be considered as biomass originated feedstock for its production. In this sense, the corresponding vapor–liquid equilibrium data of these γ-valerolactone containing mixtures is important to model related separation processes. The temperature-dependent vapor pressures of 2-MeTHF and THF were determined and correlated by three-parameter Antoine and Clark–Glew equations. The isobaric vapor–liquid equilibrium of 2-MeTHF and GVL was determined at atmospheric (p = 101.3 kPa) and reduced (p = 50.7 kPa) pressures. The vapor–liquid equilibrium of GVL and THF was measured at p = 101.3 kPa. The experimental data were correlated with Wilson, NRTL, and UNIQUAC activity coefficient models, and the results were compared with UNIFAC model calculations. The correlated models were found suitable for representing the VLE data.

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Solvent effects on esterification equilibria

et al. 2015

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Solvents are known to have strong impacts on the yields of equilibrium reactions. This work focuses on the thermodynamic investigation of these solvent effects on esterification reactions of acetic acid and propionic acid with ethanol. Esterification of acetic acid was performed in the solvents acetone, acetonitrile (ACN), dimethylformamide (DMF), and tetrahydrofurane as well as in mixtures thereof. ACN promotes the esterification of acetic acid, whereas it is strongly suppressed by DMF. The esterification of propionic acid was investigated with various reactant concentrations in acetone. The experimental equilibrium data in pure solvents and solvent mixtures were modeled using the thermodynamic equilibrium constant Ka and the reactant/product activity coefficients predicted by the perturbed chain‐statistical associating fluid theory (PC‐SAFT). For a given Ka, PC‐SAFT is able to predict the influence of the solvent and even solvent mixtures on the equilibrium concentrations of esterification in almost quantitative agreement with the experimental data. © 2015 American Institute of Chemical Engineers AIChE J, 61: 3000–3011, 2015

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Systems Involving cis-or trans-Dichloroethylene and an Acetal or Ether

Cited by 15 publications

References 0 publications

Vapor Pressures and Thermophysical Properties of Dimethoxymethane, 1,2-Dimethoxyethane, 2-Methoxyethanol, and 2-Ethoxyethanol: Data Reconciliation and Perturbed-Chain Statistical Associating Fluid Theory Modeling

Vapor Pressures and Thermophysical Properties of Dimethoxymethane, 1,2-Dimethoxyethane, 2-Methoxyethanol, and 2-Ethoxyethanol: Data Reconciliation and Perturbed-Chain Statistical Associating Fluid Theory Modeling

Isobaric Vapor–Liquid Equilibria for Binary Mixtures of Biomass-Derived γ-Valerolactone + Tetrahydrofuran and 2-Methyltetrahydrofuran

Solvent effects on esterification equilibria

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