Abstract: Disclosed is a continuous process for the production of bivalent metal peroxides, comprising the steps of introducing into an intensive mixing apparatus a solid, anhydrous or hydrated oxide or hydroxide of a bivalent metal; simultaneously introducing into the intensive mixing apparatus a solution of hydrogen peroxide, whereby the solid bivalent metal compound and the peroxide are intensively mixed and react to produce a reaction mixture containing bivalent metal peroxide; transporting the reaction mixture directly to a rapid dryer; and rapidly drying the reaction mixture to produce the bivalent metal peroxide in solid form.

Abstract: The process of continuously producing an alkali metal superoxide comprises the reaction of an aerosol of hydrogen peroxide and an alkali metal hydroxide in an inert gas. The reacting aerosol is of the solid/gaseous type or of the liquid/gaseous type. The reaction is preferably carried out in an apparatus comprising a reaction chamber, inlet ducts for the reactants and a dry gas, and an outlet duct conducting the reacted aerosol to means for separating the resulting solid alkali metal superoxide from the gaseous phase.