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Distribution ratios of lipase-catalyzed reaction products in ionic liquid supercritical CO2 systems / Rafat Bogel-Lukasik in Industrial & engineering chemistry research, Vol. 47 N° 13 (Juillet 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N° 13 (Juillet 2008) . - p. 4473–4480 Titre : Distribution ratios of lipase-catalyzed reaction products in ionic liquid supercritical CO2 systems : resolution of 2-octanol enantiomers Type de document : texte imprimé Auteurs : Rafat Bogel-Lukasik, Auteur ; Vesna Najdanovic-Visak, Auteur ; Susana Barreiros, Auteur Année de publication : 2008 Article en page(s) : p. 4473–4480 Note générale : Bibliogr. p. 4479-4480 Langues : Anglais (eng) Mots-clés : Vapor-liquid  equilibrium;  CO2  systems;  Ionic  liquid Résumé : This paper presents vapor−liquid equilibrium (VLE) data for systems containing high-pressure CO2, an ionic liquid, and products of an enzymatic reaction between succinic anhydride and (R,S)-2-octanol in the presence of a lipase. VLE experiments were used to calculate partition coefficients of reaction products between the ionic liquid-rich phase and the CO2-rich phase. Experiments of extraction with CO2 from an ionic liquid of (S)-2-octanol in conditions similar to those of the postreaction mixture were also carried out. The extraction at 11 MPa and 35 °C allows one to recover completely the unreacted enantiomer of 2-octanol with very high enantiomeric excess (98.42%). En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0714100 [article] Distribution ratios of lipase-catalyzed reaction products in ionic liquid supercritical CO2 systems : resolution of 2-octanol enantiomers [texte imprimé] / Rafat Bogel-Lukasik, Auteur ; Vesna Najdanovic-Visak, Auteur ; Susana Barreiros, Auteur . - 2008 . - p. 4473–4480. Bibliogr. p. 4479-4480 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N° 13 (Juillet 2008) . - p. 4473–4480 Mots-clés : Vapor-liquid  equilibrium;  CO2  systems;  Ionic  liquid Résumé : This paper presents vapor−liquid equilibrium (VLE) data for systems containing high-pressure CO2, an ionic liquid, and products of an enzymatic reaction between succinic anhydride and (R,S)-2-octanol in the presence of a lipase. VLE experiments were used to calculate partition coefficients of reaction products between the ionic liquid-rich phase and the CO2-rich phase. Experiments of extraction with CO2 from an ionic liquid of (S)-2-octanol in conditions similar to those of the postreaction mixture were also carried out. The extraction at 11 MPa and 35 °C allows one to recover completely the unreacted enantiomer of 2-octanol with very high enantiomeric excess (98.42%). En ligne : http://pubs.acs.org/doi/abs/10.1021/ie0714100