Heterogeneous catalysis solid base catalyst and a preparation process and a use thereof
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United States of America Patent
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Issued Date -
Oct 4, 2007
app pub date -
Jan 18, 2007
filing date -
Jan 20, 2006
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Abandoned
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Abstract
The present invention relates to a solid base catalyst including 10.0%-30.0% by weight of calcium oxide and 70.0%-90.0% by weight of zirconium oxide, in which the calcium source is CaCl.sub.2 or Ca(NO.sub.3).sub.2, and the Zirconium source is ZrOCl.sub.2 or ZrO(NO.sub.3).sub.2. The invention also provides a process for the preparation of the catalyst and a use of the catalyst in synthesizing dimethyl carbonate via heterogeneous catalysis. The catalyst shows good catalytic stability and catalytic activity, and can be separated from products easily and is reusable.
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