Selective extraction of copper, mercury, silver, and palladium ions from water using hydrophobic ionic liquids / Nicolas Papaiconomou in Industrial & engineering chemistry research, Vol. 47 n°15 (Août 2008)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5080–5086 Titre : Selective extraction of copper, mercury, silver, and palladium ions from water using hydrophobic ionic liquids Type de document : texte imprimé Auteurs : Nicolas Papaiconomou, Auteur ; Jong-Min Lee, Auteur ; Justin Salminen, Auteur Année de publication : 2008 Article en page(s) : p. 5080–5086 Note générale : Bibliogr. p. 5085-5086 Langues : Anglais (eng) Mots-clés : Dilute metal ions Ionic liquids Résumé : Extraction of dilute metal ions from water was performed near room temperature with a variety of ionic liquids. Distribution coefficients are reported for fourteen metal ions extracted with ionic liquids containing cations 1-octyl-4-methylpyridinium[4MOPYR]+, 1-methyl-1-octylpyrrolidinium[MOPYRRO]+, or 1-methyl-1-octylpiperidinium[MOPIP]+ and anions tetrafluoroborate[BF4]+, trifluoromethyl sulfonate[TfO]+, or nonafluorobutyl sulfonate[NfO]+. Ionic liquids containing octylpyridinium cations are good for extracting mercury ions. However, other metal ions were not significantly extracted by any of these ionic liquids. Extractions were also performed with four new task-specific ionic liquids. When these liquids contain a disulfide functional group, they are efficient and selective for mercury and copper, whereas those containing a nitrile functional group are efficient and selective for silver and palladium. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0706562 [article] Selective extraction of copper, mercury, silver, and palladium ions from water using hydrophobic ionic liquids [texte imprimé] / Nicolas Papaiconomou, Auteur ; Jong-Min Lee, Auteur ; Justin Salminen, Auteur . - 2008 . - p. 5080–5086. Bibliogr. p. 5085-5086 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°15 (Août 2008) . - p. 5080–5086 Mots-clés : Dilute metal ions Ionic liquids Résumé : Extraction of dilute metal ions from water was performed near room temperature with a variety of ionic liquids. Distribution coefficients are reported for fourteen metal ions extracted with ionic liquids containing cations 1-octyl-4-methylpyridinium[4MOPYR]+, 1-methyl-1-octylpyrrolidinium[MOPYRRO]+, or 1-methyl-1-octylpiperidinium[MOPIP]+ and anions tetrafluoroborate[BF4]+, trifluoromethyl sulfonate[TfO]+, or nonafluorobutyl sulfonate[NfO]+. Ionic liquids containing octylpyridinium cations are good for extracting mercury ions. However, other metal ions were not significantly extracted by any of these ionic liquids. Extractions were also performed with four new task-specific ionic liquids. When these liquids contain a disulfide functional group, they are efficient and selective for mercury and copper, whereas those containing a nitrile functional group are efficient and selective for silver and palladium. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0706562

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Solutions of alkylammonium and bulky anions / Nicolas Papaiconomou in Industrial & engineering chemistry research, Vol. 51 N° 28 (Juillet 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 28 (Juillet 2012) . - pp. 9661-9668 Titre : Solutions of alkylammonium and bulky anions : Description of osmotic coefficients within the binding mean spherical approximation Type de document : texte imprimé Auteurs : Nicolas Papaiconomou, Auteur ; Jean-Pierre Simonin, Auteur ; Olivier Bernard, Auteur Année de publication : 2012 Article en page(s) : pp. 9661-9668 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Approximation Osmotic coefficient Résumé : The binding mean spherical approximation (BiMSA) is used to describe osmotic coefficients for aqueous solutions of salts containing alkylammonium cations or bulky anions. A total of 35 salt solutions is accurately described at 25 °C over the whole concentration range, up to very high concentrations such as 20 mol·kg―1 for methylammonium chloride or 24 mol·kg―1 for ammonium thiocyanate. The ion diameters, the permittivity of solution, and the association constant are adjustable parameters within the BiMSA model. New diameter values are assigned to alkylammonium cations and bulky anions such as tetrafluoroborate, alkanesulfonates, methylsulfate, trifluoroacetate, or trifluoromethanesulfonate anions. Alkylammonium sizes are in reasonable agreement with literature values. Besides, association constants values obtained within the BiMSA model compare well with literature values when available. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26163303 [article] Solutions of alkylammonium and bulky anions : Description of osmotic coefficients within the binding mean spherical approximation [texte imprimé] / Nicolas Papaiconomou, Auteur ; Jean-Pierre Simonin, Auteur ; Olivier Bernard, Auteur . - 2012 . - pp. 9661-9668. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 28 (Juillet 2012) . - pp. 9661-9668 Mots-clés : Approximation Osmotic coefficient Résumé : The binding mean spherical approximation (BiMSA) is used to describe osmotic coefficients for aqueous solutions of salts containing alkylammonium cations or bulky anions. A total of 35 salt solutions is accurately described at 25 °C over the whole concentration range, up to very high concentrations such as 20 mol·kg―1 for methylammonium chloride or 24 mol·kg―1 for ammonium thiocyanate. The ion diameters, the permittivity of solution, and the association constant are adjustable parameters within the BiMSA model. New diameter values are assigned to alkylammonium cations and bulky anions such as tetrafluoroborate, alkanesulfonates, methylsulfate, trifluoroacetate, or trifluoromethanesulfonate anions. Alkylammonium sizes are in reasonable agreement with literature values. Besides, association constants values obtained within the BiMSA model compare well with literature values when available. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26163303

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