| 摘要 |
The invention relates to a process for the preparation of a titania/metal vanadate based catalyst composition, comprising the steps of bringing into contact an amount of metatitanic acid which is sufficient to yield an amount of 60 wt.% to 99 wt.% of titania in the composition with an amount of one or more metal vanadates of the general formula Me Van (I) which is sufficient to yield an amount of 0.1 wt.% to 25 wt.% of Me Van in the composition, wherein Me denotes Mg, Ca, Sr, Ba, Zr, Mn, Fe, Cu, Ag, Al, Bi, Sb, Y, La, Ce, Pr, Nd, Sm, Gd, Tb,Dy, Er, Yb, or individual mixtures thereof, and Van denotes VO4 3-, V2O7 4-or mixtures thereof, to form an intimate mixture, and calcining the mixture obtained. The invention further relates to the use of metatitanic acid for the preparation of a titania/metal vanadate based catalyst in a one pot reaction. |
