Patent ID: 6124499
Filing Date: 2000-09-26
Classification: B01J,C07C

Abstract:
A process for the gas-phase catalytic oxidation of organic compounds, comprising oxidizing an organic compound is the presence of a catalyst,wherein said catalyst is a multimetal oxide material containing Cu, Mo and at least one of the elements W, V, Nb and Ta, having a multiphase structure and containing crystallites B* of an oxometallates of formula IICu Mo.sub.A W.sub.B V.sub.C Nb.sub.D Ta.sub.E oxide (Formula II),where1/(A+B+C+D+E) is from 0.7 to 1.3,(B+C+D+E)/A is from 0.01 to 1,wherein said oxometallate has a structure which is defined by the following X-ray diffraction pattern, reproduced in the form of interplanar spacings d[.ANG.] independent of the wavelength of the X-rays used:d[.ANG.]6.79.+-.0.33.56.+-.0.33.54.+-.0.33.40.+-.0.33.04.+-.0.32.96.+-.0.32.