Catalysis of Organic..

98Oxidation with Microchannel Immobilized HomogeneousConclusionsFrom a commercial application point of view, the catalyst immobilization techniquebased on using ionic liquids desirably allows homogeneous reactions to be operatedin the heterogeneous mode. In addition to the retention of homogeneouscharacteristic, the advantages of this novel system include the high surface areaprovided by the solid, and thus the increased interfacial area between the organic andionic liquid phases, and the possibility of selectivity variations from bulkequilibrium product distribution through the effect of the interface. When such acatalyst system is integrated into the design of microchannel reactor, it is possible toconduct normally homogeneous hydrocarbon oxidation reactions in a homogeneousmode. We also speculate that the beneficial features of mictochannel reactorsystems may also allow oxidations with a stoichiometric ratio of oxygen to substrateto achieve high product yields and selectivity.References1. S. N. Bizzari, S. Fenelon, M. Ishikawa-Yamaki, Chemical EconomicsHandbook, SRI International, Menlo Park, 682.7000A (1999)2. D.C. Bailey, J.H. Langer, Chem. Rev., 81, 109-148 (1981)3. T. Welton, Chem. Rev., 99, 2071 (1999)4. Y. Chauvin , L. Mussmann, H. Olivier, Angew. Chem., Ind. Ed. Engl., 34,2698(1995)5. C.P. Mehnert, E.J. Mozeleski, R. A. Cook, Chem. Commun., 3010-3011 (2002)6. J. P. Arhancet, M. E. Davis, J.S. Merola, B. E. Hanson, Nature,339, 454(1989)7. U.S. Patent 6, 888, 0348. M.T. Janicke, J. Cat., 191, 282-293 (2000)9. P. Li, C. Ohtsuki, T. Kokubo, J. Material Science, Materials in Medicine 4, 127-131, (1993)10. S. Liu, Z. Liu, S. Kawi, Korean J. Chem. Eng., 15(5), 510-515 (1998)11. Short Communication, Pak J Sci Ind Res 42(6) 336-338(1999)