| abstract |
Process for preparing a catalyst for the oxidation of methanol to formaldehyde, which comprises reacting iron powder and molybdenum trioxide in an atomic ratio of Mo / Fe between 1.5 and 5 in an aqueous suspension and at temperatures between 20 and 100 ° C, and subsequently or simultaneously, oxidize the aqueous mixture with an oxidizing agent in an amount equal to or greater than the amount necessary for the oxidation of the ferrous ion to ferric ion and to oxidize the molybdenum to the state of valence 6, said oxidation taking place in the aqueous suspension. |