Catalyst molded article, catalyst molded article for production of methacrolein and/or methacrylic acid, and method for producing methacrolein and/or methacrylic acid

摘要

Provided are a catalyst capable of producing methacrolein and/or methacrylic acid while maintaining a stable, high reaction rate and high selectivity of the raw material compound over a long period, and a method for producing methacrolein and/or methacrylic acid aim to do When the density (g/cm 3 ) of the catalyst compact is X, the packed bulk density (g/cm 3 ) of the catalyst compact is Y, and the representative length (cm) of the catalyst compact is Z, the following formulas (1) and (2) ), which satisfies the catalyst molded body. 0.700(g/cm 3 ) 2 ≤(X×Y)≤1.200(g/cm 3 ) 2 ... Equation (1) 0.050 g/cm 2 ≤ (X×Z) ≤ 0.130 g/cm 2 ... Equation (2)