Ester production method by transesterification reaction using solid acid catalyst
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United States of America Patent
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May 1, 2007
Grant Date -
Jul 6, 2006
app pub date -
Mar 19, 2004
filing date -
Mar 26, 2003
priority date (Note) -
Expired
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Abstract
It is an object of this invention to provide a method for producing an ester by a transesterification reaction in which the reaction can be stably performed in a short time at a pressure approximately equal to normal pressure. The ester is produced by a transesterification reaction in which a starting material ester and an alcohol are brought into contact with a solid acid catalyst that displays the characteristics of a very strong acid in terms of the absolute value of argon adsorption heat ranging from 15 to 22 kJ/mol. In particular, it is preferable that the starting material ester in a liquid phase and alcohol in a vapor phase be brought into contact with the solid acid catalyst, and that the starting material ester be oil or fat, and the alcohol be methanol or ethanol.
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