PALLADIUM-CONTAINING CATALYSTS, METHOD OF PRODUCING THE SAME AND METHOD OF PRODUCING α, β-UNSATURATED CARBOXYLIC ACID

PROBLEM TO BE SOLVED: To provide a palladium-containing catalyst for producing an α, β-unsaturated carboxylic acid from an olefin or an α, β-unsaturated aldehyde with high selectivity and preventing carbon dioxide from occurring, a method of producing the catalyst, and a method of producing the α, β-unsaturated carboxylic acid using the catalyst. SOLUTION: The palladium-containing catalyst contains 0.001-0.25 moles of a silver element to one mole of a palladium element. The palladium-containing catalyst may preferably be produced by a method having the process of reducing a compound containing an oxidized palladium element with a reducing agent and the process of reducing a compound containing an oxidized silver element with a reducing agent. The above palladium-containing catalyst may preferably used in the method of producing the α, β-unsaturated carboxylic acid wherein the olefin or the α, β-unsaturated aldehyde is oxidized with a molecular oxygen in a liquid phase. COPYRIGHT: (C)2007,JPO&INPIT