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AssigneeMitsubishi Rayon Co., Ltd.
InventorsYuji Fujimori, Wataru Ninomiya, Akio Takeda, Mai Kojima
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The object of the present invention is to provide a catalyst which can produce an α,β-unsaturated carboxylic acid through liquid-phase oxidation of an olefin or an α,β-unsaturated aldehyde in good reaction performance, a method for producing the catalyst, and a method for producing an α,β-unsaturated carboxylic acid by using the catalyst. The present invention resides in a catalyst for producing an α,β-unsaturated carboxylic acid, wherein a metal is supported on a carrier with a total pore volume of 0.40 to 1.50 cc/g as measured by nitrogen gas adsorption method, or wherein palladium with an average particle diameter in the range of 1 to 8 nm is supported on the carrier.
A method for producing an α,β-unsaturated carboxylic acid through liquid-phase oxidation of an olefin or an α,β-unsaturated aldehyde with molecular oxygen in the presence of a catalyst in a dispersed state in a reaction liquid, wherein the catalyst comprises metal supported on a carrier with a total pore volume of 0.40 to 1.50 cc/g as measured by nitrogen gas adsorption method.
A method for producing an α,β-unsaturated carboxylic acid through liquid-phase oxidation of an olefin or an α,β-unsaturated aldehyde with molecular oxygen in the presence of a catalysts in a dispersed state in a reaction liquid, wherein the catalyst comprises palladium with an average particle diameter in the range of 1 to 8 nm supported on a carrier.
7-9. (canceled)
Dependencies are inferred from the claim text.