Synthesis of Fe‐MCM‐41 from silatrane and FeCl3 via sol–gel process and its epoxidation acivity |
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Authors: | W Thitsartarn E Gulari S Wongkasemjit |
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Institution: | 1. The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand;2. Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109‐2136, USA |
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Abstract: | An iron‐containing mesoporous molecular sieve, or Fe‐MCM‐41, was successfully synthesized the via sol–gel technique using silatrane and FeCl3 as the silicon and iron sources, and was characterized using various techniques. Many factors were investigated, namely, reaction temperature and time, calcination rate, and iron amount in the reaction mixture. It was found that the optimum conditions in which to synthesize Fe‐MCM‐41 was to carry out the reaction at 60 °C for 7 h using a 1 °C min?1 calcination rate and a 550 °C calcination temperature. The catalytic activity and selectivity of styrene epoxidation using hydrogen peroxide showed that the selectivity of the styrene oxide reached 65% at a styrene conversion of 22% over the 1%wt catalyst. Copyright © 2008 John Wiley & Sons, Ltd. |
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Keywords: | Fe‐MCM‐41 silatrane sol– gel process styrene epoxidation |
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