Patent ID: 6060419
Filing Date: 2000-05-09
Classification: B01J,C07C

Abstract:
A composition of matter comprising at least one heteropolyacid having the formula H.sub.(e'-bz') G.sub.b (X.sub.2 M.sub.m' M'.sub.x' M"".sub.n' O.sub.y').sup.-e' on a support comprising at least one polyoxometallate having the formula C.sub.a H.sub.(e-az) (X.sub.k M.sub.m M'.sub.x M"".sub.n O.sub.y).sup.-e, where(a) in the formula of said heteropolyacid, cation G is Cu.sup.++, Fe.sup.+++, Co, Mn, Ni, La, Li, Na, K or Rb, or an oxy ion of Ti, V, Cr, Mo, U, As, Bi, Sb, Nb or ammonium, tetraalkylammonium, pyridinium, quinolinium, protonated aromatic amines or protonated aliphatic amines, or combinations thereof, or is absent; X is a Group IIIB, IVB, VB, VIB or transition metal; M is molybdenum or tungsten or combinations thereof; M' is vanadium; M"" is independently zinc or a transition metal different from M and M', or combination thereof; z' is the charge on said cation G; e' is the charge of anion (X.sub.2 M.sub.m' M'.sub.x' M"".sub.n' O.sub.y'); b is the number of cations G; m' is 12 to 18, x' is 0 to 6, n' is 0 to 3 where m'+x'+n'=18, and y' is 48 to 62; and(b) in the formula of said support, cation C is selected from the group consisting of potassium, rubidium, cesium, magnesium, calcium, strontium, barium, vanadium, chromium, lanthanum, manganese, iron, cobalt, ruthenium, copper, actinide metal, lanthanide metal, metal oxy anion, ammonium, tetraalkylammonium, pyridinium, quinolinium, protonated aromatic amines and protonated aliphatic amines, or combinations thereof; X is a Group IIIB, IVB, VB, VIB or transition metal; M is molybdenum or tungsten or combinations thereof; M' is vanadium; M"" is independently zinc or a transition metal different from M and M', or combination thereof; z is the charge on said cation C; a is the number of cations C; e is the charge of anion (X.sub.k M.sub.m M'.sub.x M"".sub.n O.sub.y); k is 1 to 5, m is 5 to 18, x is 0 to 6, n is 0 to 3 and y is 18 to 62; and(c) said support is a porous material, which material has pore volumes in the range from 0.01 to 0.25 ml/g and a pore size distribution in which more than approximately 60% of said pores have a pore radius of greater than or equal to approximately 75 .ANG..