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    • 1. 发明授权
    • Oxidation catalyst
    • 氧化催化剂
    • US06391821B1
    • 2002-05-21
    • US09334379
    • 1999-06-16
    • Yuuichi SatohJun TatsumiToshiya IidaToshio Hayashi
    • Yuuichi SatohJun TatsumiToshiya IidaToshio Hayashi
    • B01J2300
    • B01J23/66B01J23/52C07C67/00C07C67/035C07C69/157C07C69/16C07C69/28
    • An oxidation catalyst according to the present invention is prepared, for example, by heat processing a gold compound at 150° C. to 80° C., yielding ultrafine gold particles, which are then mixed with a palladium compound and a compound containing at least one element selected from the group consisting of alkaline metals and the elements of Groups IIA, IIIA, VIA, IIB, VB, and VIII of the Periodic Table. By an oxidation reaction between a benzyl compound such as p-xylene and a carboxylic acid such as acetic acid in the presence of oxygen and the oxidation catalyst prepared as above, a benzyl ester such as p-methylbenzyl acetate or p-xylylene diacetate can be produced. Consequently, it is possible to provide an oxidation catalyst suitable for use in industrially producing the foregoing benzyl esters, a method of preparing the foregoing oxidation catalyst, and a method of producing the foregoing benzyl esters efficiently and at low cost.
    • 根据本发明的氧化催化剂例如通过在150℃至80℃下热处理金化合物而制备,产生超细金颗粒,然后将其与钯化合物和至少含有化合物 选自碱金属和元素周期表IIA,IIIA,VIA,IIB,VB和VIII族元素的一种元素。 通过苄基化合物如对二甲苯和羧酸如乙酸在氧气存在下的氧化反应和如上制备的氧化催化剂,可以将苄基酯如对甲基苄基乙酸酯或对二甲苯基二乙酸酯 生产。 因此,可以提供适用于工业生产上述苄基酯的氧化催化剂,制备上述氧化催化剂的方法,以及以低成本有效地生产上述苄基酯的方法。