Patent ID: 6642174
Filing Date: 2003-11-04
Classification: B01J,C07C,Y02P

Abstract:
A process for the preparation of an improved catalyst comprising a mixed-metal oxide having the empirical formulaMoaVbEcXdOe wherein E is at least one element selected from the group consisting of Te and Sb,wherein X is at least one element selected from the group consisting of Nb, Ta, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, Ag, B, In, Ce and W, and wherein, when a=1, b=0.01 to 1.0, c=0.01 to 1.0, d=0.01 to 1.0 and e is dependent on the oxidation state of the other elements, said process comprising: (a) admixing compounds of Mo, V, E and X and at least one solvent to form a gel; (b) aging said so-formed gel; and (c) calcining said gel.