期刊
CATALYSIS COMMUNICATIONS
卷 11, 期 2, 页码 114-117出版社
ELSEVIER
DOI: 10.1016/j.catcom.2009.09.007
关键词
Microwave irradiation; Styrene oxidation; Molecular O-2; Sulfated Co-Y-ZrO2
The microwave-assisted styrene epoxidation reaction with molecular O-2 as an oxidant was studied over a sulfated Co-Y-doped ZrO2 solid catalyst. The microwave irradiation (400 W) resulted in similar styrene conversion and styrene oxide selectivity, in reduced time. as compared to conventional thermal heating. Higher power (800 W) of microwave irradiation decreased the styrene oxide selectivity as well as leading to the formation of styrene glycol. DMF was found to be the most suitable solvent for epoxidation of styrene with molecular O-2 under microwave irradiation and yielded maximum oxide selectivity (91%) at 120 degrees C. The microwave-assisted oxidation reaction resulted in time saving and is energy conserving method. (C) 2009 Elsevier B.V. All rights reserved.
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