| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a catalyst for manufacturing lower fatty acid ester having high activity and suppressing side reaction such as the production of an oligomer from a lower olefin or the like, and a manufacturing method for lower fatty acid ester using the catalyst. <P>SOLUTION: The catalyst for manufacturing lower fatty acid ester is used for manufacturing a lower fatty acid ester from a lower fatty acid and the lower olefin and it is characterized by having a double pore distribution of mesopores and macropores. This catalyst contains, for example, a heteropoly-acid or a salt thereof as a catalytically active component. Further, the catalyst may be a catalyst in which the total pore volume thereof is not less than 0.05 ml/g, the ratio of the pore volume of mesopores of the total pore volume is not less than 50% and the ratio of the pore volume of macropores is not less than 15%. <P>COPYRIGHT: (C)2004,JPO |
