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Activity coefficients of organic solutes at infinite dilution in ionic liquids.1. 1-hexyl-3-methylimidazolium hexafluorophosphate and 1-octyl-3-methylimidazolium hexafluorophosphate and their application to alkane/aromatic and aromatic/aromatic hydrocarbon separation / Yi Li in Industrial & engineering chemistry research, Vol. 50 N° 18 (Septembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 18 (Septembre 2011) . - pp. 10755-10764 Titre : Activity coefficients of organic solutes at infinite dilution in ionic liquids.1. 1-hexyl-3-methylimidazolium hexafluorophosphate and 1-octyl-3-methylimidazolium hexafluorophosphate and their application to alkane/aromatic and aromatic/aromatic hydrocarbon separation Type de document : texte imprimé Auteurs : Yi Li, Auteur ; Li-Sheng Wang, Auteur ; Yun-Xia Feng, Auteur Année de publication : 2011 Article en page(s) : pp. 10755-10764 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Thermodynamic  properties  Ionic  liquid  Infinite  dilution  Activity  coefficient Résumé : Activity coefficients at infinite dilution, γ∞i,3, for organic solutes (alkanes, alkenes, alkyl benzenes, alcohols, chloromethanes, acetonitrile, ethyl acetate, dioxane, tetrahydrofuran, and acetone) in 1-hexyl-3-methylimidazolium hexafluorophosphate [HMIM][PF6] and 1-octyl-3-methylimidazolium hexafluorophosphate [OMIM][PF6] have been determined using gas-liquid chromatography at temperatures from 303.15 to 363.15 K with the ionic liquids as the stationary phase. The partial molar excess enthalpies at infinite dilution of the ionic liquids were calculated for the solutes from the temperature dependence of the experimental activity coefficients at infinite dilution. The solubility parameters of ionic liquids were also determined by the regular solution theory. The selectivities of various ionic liquids for the alkane/aromatic hydrocarbon and aromatic/aromatic were summarized from literature and calculated from γ∞i,3. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24523892 [article] Activity coefficients of organic solutes at infinite dilution in ionic liquids.1. 1-hexyl-3-methylimidazolium hexafluorophosphate and 1-octyl-3-methylimidazolium hexafluorophosphate and their application to alkane/aromatic and aromatic/aromatic hydrocarbon separation [texte imprimé] / Yi Li, Auteur ; Li-Sheng Wang, Auteur ; Yun-Xia Feng, Auteur . - 2011 . - pp. 10755-10764. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 18 (Septembre 2011) . - pp. 10755-10764 Mots-clés : Thermodynamic  properties  Ionic  liquid  Infinite  dilution  Activity  coefficient Résumé : Activity coefficients at infinite dilution, γ∞i,3, for organic solutes (alkanes, alkenes, alkyl benzenes, alcohols, chloromethanes, acetonitrile, ethyl acetate, dioxane, tetrahydrofuran, and acetone) in 1-hexyl-3-methylimidazolium hexafluorophosphate [HMIM][PF6] and 1-octyl-3-methylimidazolium hexafluorophosphate [OMIM][PF6] have been determined using gas-liquid chromatography at temperatures from 303.15 to 363.15 K with the ionic liquids as the stationary phase. The partial molar excess enthalpies at infinite dilution of the ionic liquids were calculated for the solutes from the temperature dependence of the experimental activity coefficients at infinite dilution. The solubility parameters of ionic liquids were also determined by the regular solution theory. The selectivities of various ionic liquids for the alkane/aromatic hydrocarbon and aromatic/aromatic were summarized from literature and calculated from γ∞i,3. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24523892

Activity coefficients of organic solutes at Infinite dilution in the ionic liquids. 2. / Jiang Kan in Industrial & engineering chemistry research, Vol. 51 N° 38 (Septembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 38 (Septembre 2012) . - pp. 12479–12487 Titre : Activity coefficients of organic solutes at Infinite dilution in the ionic liquids. 2. : Organic solutes in 1-hexyl-3-methylimidazolium nitrate and gas–liquid partitioning and interfacial adsorption using gas–liquid chromatography Type de document : texte imprimé Auteurs : Jiang Kan, Auteur ; Li-Sheng Wang, Auteur ; Xin-Xin Wang, Auteur Année de publication : 2012 Article en page(s) : pp. 12479–12487 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Ionic  liquids  Adsorption  Gas  liquid Résumé : This paper reports activity coefficients at infinite dilution for a series of organic solutes in the ionic liquid 1-hexyl-3-methylimidazolium nitrate by gas–liquid chromatography at different temperatures between 313.15 and 363.15 K. The contribution of gas–liquid partitioning and interfacial adsorption to the retention mechanism was estimated by changing the loading of ionic liquid in stationary phase, and the influence of different loading of ionic liquid on the experimental values of activity coefficients at infinite dilution was discussed. The partial molar excess enthalpies at infinite dilution and the solubility parameters of ionic liquid were also calculated from the experimental values of activity coefficients at infinite dilution. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301591j [article] Activity coefficients of organic solutes at Infinite dilution in the ionic liquids. 2. : Organic solutes in 1-hexyl-3-methylimidazolium nitrate and gas–liquid partitioning and interfacial adsorption using gas–liquid chromatography [texte imprimé] / Jiang Kan, Auteur ; Li-Sheng Wang, Auteur ; Xin-Xin Wang, Auteur . - 2012 . - pp. 12479–12487. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 38 (Septembre 2012) . - pp. 12479–12487 Mots-clés : Ionic  liquids  Adsorption  Gas  liquid Résumé : This paper reports activity coefficients at infinite dilution for a series of organic solutes in the ionic liquid 1-hexyl-3-methylimidazolium nitrate by gas–liquid chromatography at different temperatures between 313.15 and 363.15 K. The contribution of gas–liquid partitioning and interfacial adsorption to the retention mechanism was estimated by changing the loading of ionic liquid in stationary phase, and the influence of different loading of ionic liquid on the experimental values of activity coefficients at infinite dilution was discussed. The partial molar excess enthalpies at infinite dilution and the solubility parameters of ionic liquid were also calculated from the experimental values of activity coefficients at infinite dilution. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301591j

Measurement and correlation of the solubilities of 2 - [(6- Oxido - 6H - dibenz [c,e] [1,2] oxaphosphorin - 6 - yl) methyl] butanedioic acid in selected solvents / Xian-Zhao Shao in Industrial & engineering chemistry research, Vol. 51 N° 13 (Avril 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 13 (Avril 2012) . - pp. 5082–5089 Titre : Measurement and correlation of the solubilities of 2 - [(6- Oxido - 6H - dibenz [c,e] [1,2] oxaphosphorin - 6 - yl) methyl] butanedioic acid in selected solvents Type de document : texte imprimé Auteurs : Xian-Zhao Shao, Auteur ; Li-Sheng Wang, Auteur ; Mi-Yi Li, Auteur Année de publication : 2012 Article en page(s) : pp. 5082–5089 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Solubility  Correlation  analysis  Correlation Résumé : The solubilities of 2-[(6-oxido-6H-dibenz[c,e][1,2]oxaphosphorin-6-yl)methyl]butanedioic acid (DDP) in selected solvents were measured by a static analytic method. The measurements were carried out over the temperature range from 293 to 353 K in methanol, ethanol, 1-propanol, tetrahydrofuran, 1,4-dioxane, ethyl acetate, toluene, benzene, and cyclohexane. Several commonly used thermodynamic models, including the empirical equation and the Scatchard–Hildebrand, Wilson, nonrandom two-liquid, and UNIQUAC equations, were applied to correlate the experimental solubility data. The binary interaction parameters of the above models were found to have a linear dependence on the temperature, and the coefficients were regressed. It was found that all of these models can satisfactorily reproduce the experimental data and the UNIQUAC equation can provide the best correlation results with an overall relative standard deviation of 1.52%. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25777948 [article] Measurement and correlation of the solubilities of 2 - [(6- Oxido - 6H - dibenz [c,e] [1,2] oxaphosphorin - 6 - yl) methyl] butanedioic acid in selected solvents [texte imprimé] / Xian-Zhao Shao, Auteur ; Li-Sheng Wang, Auteur ; Mi-Yi Li, Auteur . - 2012 . - pp. 5082–5089. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 13 (Avril 2012) . - pp. 5082–5089 Mots-clés : Solubility  Correlation  analysis  Correlation Résumé : The solubilities of 2-[(6-oxido-6H-dibenz[c,e][1,2]oxaphosphorin-6-yl)methyl]butanedioic acid (DDP) in selected solvents were measured by a static analytic method. The measurements were carried out over the temperature range from 293 to 353 K in methanol, ethanol, 1-propanol, tetrahydrofuran, 1,4-dioxane, ethyl acetate, toluene, benzene, and cyclohexane. Several commonly used thermodynamic models, including the empirical equation and the Scatchard–Hildebrand, Wilson, nonrandom two-liquid, and UNIQUAC equations, were applied to correlate the experimental solubility data. The binary interaction parameters of the above models were found to have a linear dependence on the temperature, and the coefficients were regressed. It was found that all of these models can satisfactorily reproduce the experimental data and the UNIQUAC equation can provide the best correlation results with an overall relative standard deviation of 1.52%. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25777948

Thermodynamics of phase equilibria in aqueous strong electrolyte systems / Mi-Yi Li in Industrial & engineering chemistry research, Vol. 50 N° 6 (Mars 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 6 (Mars 2011) . - pp. 3621-3631 Titre : Thermodynamics of phase equilibria in aqueous strong electrolyte systems Type de document : texte imprimé Auteurs : Mi-Yi Li, Auteur ; Li-Sheng Wang, Auteur ; Jürgen Gmehling, Auteur Année de publication : 2011 Article en page(s) : pp. 3621-3631 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Strong  electrolyte  Phase  equilibrium Résumé : The middle range (MR) parameters of the LIQUAC model were improved as a function of temperature to allow the calculation of the activities of all the species in the solution over a wide temperature and concentration range. New parameters were recorrelated by using the experimental data of osmotic coefficients, vapor-liquid equilibria (VLE), mean ion activity coefficients and salt solubilities from the Dortmund Data Bank (DDB). The coordinates of the eutectics, the peritectics, and the ice-water equilibria of the aqueous electrolyte systems were represented with the model. Standard Gibbs energies of formation, standard enthalpies of formation, and heat capacities of various solids were retrieved from the fitting of their solubility products with respect to temperature or estimated using the group contribution method. The schematic phase diagrams for the salts in aqueous systems are presented in this work. A good agreement of calculated results with the published measurements is observed. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23944530 [article] Thermodynamics of phase equilibria in aqueous strong electrolyte systems [texte imprimé] / Mi-Yi Li, Auteur ; Li-Sheng Wang, Auteur ; Jürgen Gmehling, Auteur . - 2011 . - pp. 3621-3631. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 6 (Mars 2011) . - pp. 3621-3631 Mots-clés : Strong  electrolyte  Phase  equilibrium Résumé : The middle range (MR) parameters of the LIQUAC model were improved as a function of temperature to allow the calculation of the activities of all the species in the solution over a wide temperature and concentration range. New parameters were recorrelated by using the experimental data of osmotic coefficients, vapor-liquid equilibria (VLE), mean ion activity coefficients and salt solubilities from the Dortmund Data Bank (DDB). The coordinates of the eutectics, the peritectics, and the ice-water equilibria of the aqueous electrolyte systems were represented with the model. Standard Gibbs energies of formation, standard enthalpies of formation, and heat capacities of various solids were retrieved from the fitting of their solubility products with respect to temperature or estimated using the group contribution method. The schematic phase diagrams for the salts in aqueous systems are presented in this work. A good agreement of calculated results with the published measurements is observed. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23944530