Multi-metal oxide containing silver, vanadium and one or several elements of thephosphorous group and use thereof

摘要

The invention relates to a multi-metal oxide, comprising essentially a compound of general formula (I), where a = 0.3 1.9, Q = an element chosen from the group P, As, Sb and/or Bi, b = 0.001 0.3, M = a metal chosen form the group Li, Na, K, Rb, Cs, Tl, Mg, Ca, Sr, Ba, Cu, Zn, Cd, Pb, Cr, Au, Al, Fe, Co, Ni and/or Mo, c = 0 0.5, with the proviso that (a-c) ≥ 0.1, d = a number determined by the valency and number of elements other than oxygen in formula (I) and e = 0 20. The invention further relates to pre-catalysts and catalysts for the partial oxidation of aromatic hydrocarbons produced from the above.