Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Distribution ratios of lipase-catalyzed reaction products in ionic liquid supercritical CO2 systems
T2 - resolution of 2-octanol enantiomers
AU - Bogel-Lukasik, Rafal
AU - Najdanovic, Vesna
AU - Barreiros, Susana
AU - da Ponte, Manuel Nunes
PY - 2008/7/2
Y1 - 2008/7/2
N2 - 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 degrees C allows one to recover completely the unreacted enantiomer of 2-octanol with very high enantiomeric excess (98.42%).
AB - 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 degrees C allows one to recover completely the unreacted enantiomer of 2-octanol with very high enantiomeric excess (98.42%).
KW - PRESSURE PHASE-BEHAVIOR
KW - RACEMIC ALCOHOLS
KW - ORGANIC-SOLVENTS
KW - WATER ACTIVITY
KW - ENHANCED ENANTIOSELECTIVITY
KW - KINETIC RESOLUTION
KW - PRACTICAL RESOLUTION
KW - BIOCATALYSIS
KW - SUCCINIC ANHYDRIDE
KW - CARBON-DIOXIDE
U2 - 10.1021/ie0714100
DO - 10.1021/ie0714100
M3 - Journal article
VL - 47
SP - 4473
EP - 4480
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
SN - 0888-5885
IS - 13
ER -