removed from the fluidized bed the operating overpressure is 10 mbar 100 mbar the excess methanol and the excess nitrogen are passed through a condensation system methanol being condensed and recovered a methanolic sodium methoxide solution 30 by weight alkoxide content is sprayed via a single component nozzle into a fluidized bed consisting of sodium methoxide solids the fluidized bed is heated to 70 u00b0 c 135 u00b0 c by passing hot methanol vapor at approximately 250 u00b0 c 350 u00b0 c through the fluidized bed the fluidizing gas is heated by an electrical gas heater sodium methoxide granules nm content gt 98 by weight are continuously taken off from the fluidized bed the operating overpressure is 10 mbar 100 mbar the excess methanol is passed through a condensation system methanol being condensed and recovered an ethanolic sodium ethoxide solution 21 by weight alkoxide content is sprayed via a single component nozzle into a fluidized bed consisting of sodium ethoxide solids the fluidized bed is heated to 70 u00b0 c 135 u00b0 c by passing hot ethanol vapor at approximately 250 u00b0 c 350 u00b0 c through the fluidized bed the fluidizing gas is heated by an electrical gas heater sodium ethoxide granules ne content gt 98 by weight are continuously taken off from the fluidized bed the operating overpressure is 10 mbar 100 mbar the excess ethanol is passed through a condensation system ethanol being condensed and recovered a methanolic potassium methoxide solution 32 by weight alkoxide content is sprayed via a single component nozzle into a fluidized bed consisting of potassium methoxide solids the fluidized bed is heated to 150 u00b0 c 250 u00b0 c by passing hot methanol vapor at approximately 300.