| 摘要 |
A method for the production of acrylic acid by the vapor-phase oxidation of acrolein with a molecular oxygen-containing gas in the presence of a catalyst formed of an oxide or a composite oxide of a metal element composition represented by the following formula I: MoaVbWcCudXeYf (I) wherein X is at least one element selected from the group consisting of Zr, Ti and Ce, Y is at least one element selected from the group consisting of Mg, Ca, Sr and Ba, and the subscripts a, b, c, d, e, and f are such that b = 2 to 14, 0<c</=12, 0<d</=6, 0<e</=10, and f = 0 to 3 where a is fixed at 12, 2.0<Cu+X</=10.0 and 0.25</=Cu/X</=6.0. |
