| 摘要 |
A method for producing a catalyst for methacrylic acid production, said catalyst being used for the purpose of producing a methacrylic acid by vapor-phase catalytic oxidation of methacrolein or the like and containing Mo, V, P, Cs, NH4 and Cu as essential active components. This method for producing a catalyst for methacrylic acid production comprises: a step (a) wherein an aqueous heteropolyacid solution or the like (liquid (A)), which contains Mo, P and V as constituent elements, is prepared; a step (b) wherein a slurry liquid (liquid (B)) is prepared by mixing some of the thus-obtained liquid (A) with an aqueous cesium compound solution or the like; and a step (c) wherein a slurry liquid (liquid (C)) is prepared by mixing the rest of the liquid (A) with the liquid (B). |
