Supercritical carbon dioxide-induced phase changes in (ionic liquid, water and ethanol mixture) solutions: Application to biphasic catalysis.

Najdanovic-Visak, Vesna and Serbanovic, A and Esperanca, JMSS and Guedes, HJR and Rebelo, LPN and da Ponte, MN (2003) Supercritical carbon dioxide-induced phase changes in (ionic liquid, water and ethanol mixture) solutions: Application to biphasic catalysis. ChemPhysChem, 4 (5). pp. 520-522. ISSN 1439-4235

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Abstract

The best of both worlds: Phase changes in ionic liquid + water systems, induced by addition of ethanol and supercritical carbon dioxide, allow reaction cycles to proceed as depicted, combining the high rates of one-phase conditions with easy separation of products; characteristic of biphasic catalysis. The (usually slow) epoxidation of isophorone by hydrogen peroxide, catalysed by sodium hydroxide, was rapidly carried out in these conditions, with complete recovery of the reaction product by supercritical CO2 decompression.

Item Type:
Journal Article
Journal or Publication Title:
ChemPhysChem
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3107
Subjects:
?? plus ethanolhigh-pressure chemistrybiphasic catalysisco2ionic liquidssupercritical fluidscarbon dioxideatomic and molecular physics, and opticsphysical and theoretical chemistry ??
ID Code:
63072
Deposited By:
Deposited On:
22 Mar 2013 14:19
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 13:42