Process for producing hydrogen peroxide by direct synthesis

A process for producing hydrogen peroxide by direct synthesis comprising:

• converting hydrogen and oxygen to hydrogen peroxide in the presence of a heterogeneous catalyst containing at least one noble metal, as its catalytically active component, optionally in the presence of a solvent,
• wherein the catalytically active component comprises palladium or at least two metals selected from the group consisting of metals of Group VIII and Group I of the Periodic Table of Elements, which component has been produced by spray pyrolysis or flame pyrolysis, including the conversion of a solution or suspension, containing compounds of one or more catalytically active metals in a catalytically effective elemental ratio in dissolved form, into a gas-supported particle collective, introduction thereof into a spray pyrolysis or flame pyrolysis reactor, converting the compounds of the catalytically active metals into said metals or alloys thereof, and separating the solid particles formed from the gas stream.