Catalyst and method for producing carboxylic acid and/or carboxylic anhydride in the presence of the catalyst
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:EP2135671A2
公开(公告)日:2009-12-23
An object of the present invention is to provide a catalyst exhibiting excellent performance particularly in partial oxidation reaction. Another object is to provide a method for efficiently producing carboxylic acid or carboxylic anhydride through vapor-phase partial oxidation of an organic compound by use of an oxygen-containing gas in the presence of the catalyst. The catalyst contains (1) diamond; (2) at least one species selected from among Group 5 transition element oxides, collectively called oxide A; and (3) at least one species selected from among Group 4 transition element oxides, collectively called oxide B. The method for producing a carboxylic acid or a carboxylic anhydride includes subjecting an organic compound to vapor phase partial oxidation by use of an oxygen-containing gas in the presence of the catalyst, wherein the organic compound is an aromatic compound having one or more substituents in a molecule thereof, the substituents each including a carbon atom bonded to an aromatic ring.
本发明的一个目的是提供一种特别是在部分氧化反应中表现出优异性能的催化剂。另一个目的是提供一种方法,在催化剂存在下,通过使用含氧气体对有机化合物进行气相部分氧化,高效生产羧酸或羧酸酐。催化剂包含(1)金刚石;(2)至少一种选自第 5 族过渡元素氧化物的物质,统称为氧化物 A;(3)至少一种选自第 4 族过渡元素氧化物的物质,统称为氧化物 B。生产羧酸或羧酸酐的方法包括在催化剂存在下使用含氧气体使有机化合物进行气相部分氧化,其中有机化合物是在其分子中具有一个或多个取代基的芳香族化合物,每个取代基包括与芳香环键合的碳原子。