| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a catalyst for producing a methacrylic ester in high yield by catalytically reacting a propionic ester with formaldehydes in a vapor phase, the catalyst and a method for producing the methacrylic ester in high yield. <P>SOLUTION: The method for manufacturing the catalyst, which is used for producing the methacrylic ester by catalytically reacting the propionic ester with formaldehydes in a vapor phase and has 1-3 cc/g total pore volume when measured by a nitrogen gas adsorption method, comprises a step of bringing a cesium element-containing compound into contact with silica having ≥80% ratio of the volume of pores having 2-50 nm pore diameter to the total pore volume. <P>COPYRIGHT: (C)2007,JPO&INPIT |
