[article]
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 |
in Industrial & engineering chemistry research > Vol. 47 N° 13 (Juillet 2008) . - p. 4473–4480
[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 |
|