| abstract |
The present invention relates to a process for the preparation of an oxide mixture comprising at least one compound of general formula (1) Fe x (M 1 O y ) z and at least one compound of general formula (II) M 1 m O n , such an oxide mixture, the Use of this oxide mixture as catalyst in the production of formaldehyde by oxidation of methanol, and a process for the preparation of formaldehyde by oxidation of methanol, characterized in that such an oxide mixture is used as a catalyst. M 1 here is a metal selected from the group consisting of Mo, V, Cu, Cr, Co, P, Si, B, S, Na and mixtures thereof. |