Patent ID: 9205414
Filing Date: 2015-12-08
Classification: B01J,C07B,C07C

Abstract:
1. A catalyst for preparation of unsaturated aldehyde and/or unsaturated carboxylic acid, comprising a catalytically active component and inorganic fibers, wherein said catalytically active component comprises molybdenum, bismuth and iron as essential ingredients, wherein said inorganic fibers comprises two kinds of fibers having different average diameters in which one is an inorganic fiber having an average diameter of at least 8 μm and another is an inorganic fiber having an average diameter not more than 6 μm, wherein the ratio between the content of the inorganic fiber having an average diameter of at least 8 μm and the content of the inorganic fiber having an average diameter not more than 6 μm is from 1:0.2 to 1:5 on a mass basis, wherein the total content of the inorganic fibers is from 0.5 to 30 mass % relative to the catalytically active component, wherein the catalytically active component and the inorganic fibers are supported on an inert carrier, and wherein the catalytically active component is a complex oxide represented by the following general formula (1):