To provide a heterogeneous catalyst excellent in esterification reactivity and a method for producing the same.
[1] The peak top of the pore size distribution of the esterification catalyst obtained by a BJH method is within the range of 0.6-8 nm; and the catalyst includes a silicate containing 0.1-5 mass% of Al. [2] The method for producing the esterification catalyst comprises a process (a) of preparing an aqueous solution of a specific quaternary ammonium salt, a quaternary ammonium salt containing an Al source and a Si source, a process (b) of depositing a complex by heating the aqueous solution at a temperature of 100-160°C, and a process (c) of removing the quaternary ammonium salt by calcining the complex.
COPYRIGHT: (C)2007,JPO&INPIT
Takuya Sawada
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Masamichi Tohei
Makoto Kataoka
Kenichi Hirasawa