Catalyst used for production of oxidacao catalysed gas phase, an olefin or alcohol Terciario C3 - 5, process to prepare a catalyst.Catalyst for an olefin oxidacao C3 - 5 and a catalyst for isobutylene or butenol Terciario oxidacao

摘要

A catalyst used for producing, by catalytic gas phase oxidation of a C3-C5 olefin or tertiary alcohol, the corresponding unsaturated aldehyde and unsaturated carboxylic acid, said catalyst characterized by comprising molybdenum, iron and bismuth and having a specific surface area in the range from 1 to 20m2/gr, a pore volume in the range from 0.1 to 1.0 cc/gr and a pore diameter distribution in which the pore diameters are collectively distributed in the range of each of from 1 to 10 microns and from 0.1 to 1 (exclusive) micron; and a process for preparing said catalyst by charging an unfired material powder into a centrifugal flow coating device to form particles having the average particle diameter of 2 to 10mm and then firing the particles.