| abstract |
(57) [Summary] (Modified) [Structure] Mo, V, Te, X and O are essential components (X is niobium, tantalum, tungsten, titanium, aluminum, zirconium, chromium, manganese, iron, ruthenium, One or more elements selected from the group consisting of cobalt, rhodium, nickel, palladium, platinum, antimony, bismuth, boron, indium, lithium, sodium, potassium, rubidium, cesium and cerium), and the above essential components except oxygen Presence ratio of each essential component to the total Predetermined complex metal oxide catalyst (for example, Mo 1 V 0.3 Te 0.23 Nb 0.12 O n ). A method for producing acrylic acid, which comprises subjecting propylene to a gas-phase catalytic oxidation reaction in the presence of Mo 1 . [Effect] According to this method, acrylic acid can be produced in a high yield by a one-step method using propylene as a raw material. |