Patent ID: 6387841
Filing Date: 2002-05-14
Classification: B01J,C07C

Abstract:
A catalyst composition comprising a catalyst situated on a polyoxometallate support; wherein the polyoxometallate support has the formulaQaH(eâˆ’az)(XkMmâˆ’xM1xM2nOy)âˆ’eâ€ƒâ€ƒ(I) wherein Q, is a cation selected from potassium, rubidium, cesium, magnesium, calcium, strontium, barium, transition metal, actinide metal, lanthanide metal, metal oxy ion, ammonium, tetraalkylammonium, pyridinium, quinolinium, protonated aromatic amines, protonated aliphatic arnines or mixtures thereof X is an element selected from Groups 3-16 elements; M=molybdenum, tungsten or a combination thereof; M1=vanadium; M2 is a transition metal different from M and M1; z=the charge on Q; a is the number of cations Q; k=1 to 5; m=5 to 20; n=0 to 3, x=0 to 6; y=18 to 62; and e is the charge of the polyoxornetallate ion; and provided that the catalyst is not a heteropolyacid.