CATALYST FOR PRODUCING ACROLEIN AND METHOD OF PRODUCING ACROLEIN AND/OR ACRYLIC ACID USING THE CATALYST

摘要

PROBLEM TO BE SOLVED: To provide a catalyst for producing acrolein and/or acrylic acid with high efficiency in a method of producing acrolein and/or acrylic acid by the catalytic gas phase oxidation of propylene-containing gas.;SOLUTION: The catalyst, for producing acrolein by the catalytic gas phase oxidation of propylene in the presence of molecular oxygen or molecular oxygen-containing gas, is an oxide catalyst containing molybdenum, bismuth, and iron as essential components. The catalytic component has an L^* value, an a^* value, and a b^* value in the L^*a^*b^* color system in the ranges of 30≤L^*≤60, 0≤a^*≤5, and 5≤b^*≤14.;COPYRIGHT: (C)2010,JPO&INPIT