A process for preparing nanocrystalline bismuth Molybdänmischoxidkatalysatoren

A process for preparing a nanocrystalline bismuth Molybdanmischoxidmaterials comprising the steps of a) the introduction of a solution, suspension or slurry containing a molybdenum starting compound and a Bismutausgangsverbindung and other metal-containing precursor compounds selected from nickel, iron, cobalt, manganese and / or zinc starting compounds in a reaction chamber by means of a carrier fluid, b) a thermal treatment of the solution, suspension or slurry containing the molybdenum starting compound and the Bismutausgangsverbindung and other metal-containing precursor compounds selected from nickel, iron, cobalt, manganese and / or zinc starting compounds, in a treatment zone by means of a pulsating flow at a temperature of 200 to 500 ° C, c) forming a nanocrystalline bismuth Molybdanmischoxidmaterials, d) the discharge of the in step b) and c obtained) nanocrystalline bismuth Molybdanmischoxidmaterials from the reactor, wherein the molybdenum compound is a molybdate and the output Bismutausgangsverbindung is a bismuth salt.