One kind of selective oxidation of olefins Method

The present invention relates to a method for the selective oxidation of olefins, the reaction raw material propylene, water, or more air through the preheater 120 preheated into the fixing sheets deg.] C reactor, heated salt bath, a fixed bed reactor that has the propylene selectivity oxidation catalyst, a catalyst containing molybdenum, bismuth, iron, nickel, cobalt and tungsten elements, magnesium-based catalyst further contains lanthanum hexaaluminate. Stable catalyst structure, easy to drain and molybdenum active components, the active phase phase transition hardly occurs, improving the selectivity and yield of the desired product.