Patent ID: 7304180
Filing Date: 2007-12-04
Classification: B01J,C07C,Y02P

Abstract:
1. A process for producing a metal oxide catalyst represented by the following composition formula, comprising the following step (1), step (2), step (3) and step (4): Step (1): grinding metal A to a fine particle dispersion in the presence of water without any of Mo Step (2): adding a Mo Step (3): adding metal B to the reaction liquid obtained in the step (2) to obtain a mixed liquid; and Step (4): evaporating to dryness and calcining the mixed liquid obtained in step (3) to obtain the composition formula: wherein A is Te or Sb; B is at least one element selected from the group consisting of Nb, Ta, W, Ti, Zr, Re, Fe, Ni, Co, Sn, Tl, Cu, rare earth elements, and alkali metal elements; i and j are each from 0.01 to 1.5, and j/i is from 0.3 to 1.0; k is from 0.001 to 3.0; and y is the number to be determined by the oxidation state of other elements.