Catalyst with bimodal pore size distribution and the use thereof
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United States of America Patent
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Apr 26, 2011
Grant Date -
Aug 6, 2009
app pub date -
Jan 27, 2009
filing date -
Sep 29, 2006
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Abstract
The invention is directed to a catalyst for the epoxidation of an olefin to an olefin oxide, the catalyst comprising a support having at least two pore size distributions, each pore size distribution possessing a different mean pore size and a different pore size of maximum concentration, the catalyst further comprising a catalytically effective amount of silver, a promoting amount of rhenium, and a promoting amount of one or more alkali metals, wherein the at least two pore size distributions are within a pore size range of about 0.01 μm to about 50 μm. The invention is also directed to a process for the oxidation of an olefin to an olefin oxide using the above-described catalyst.
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