abstract |
A process for preparing a catalyst for use in producing methacrylic acid in a high yield, said process comprising molding a catalytic component represented by the general formula PaMobVcXdYeZfOg (wherein P, Mo, V, X, Y, Z, a, b, c, d, e, f and g are each as defined in the specification), adding a high-molecular organic compound with a mean particle diameter of 0.01 - 10 νm to the product, and heat treating the resultant mixture before use. |