" A Process For The Preparation Of Hydrogen Peroxide"

Abstract: A cyclic anlhraquinone process for producing hydrogen peroxide using at least two differently substituted 2-alkylanthraqulnones and/or their tetrahydro derivatives. The working solution to be used contains (i) at least one reaction carrier from the series 2-(4-methyl-3-pentenyl) anthraquinone (IHEAQ), 2-(4-methylpentyl) anthraquinons (IHAQ) and their di and tetrahydro derivatives such as, In particular 2-(4-methylpenyl)-p-tetrahydroanthraquinone (THIHAQ), and (if) at least one reaction carrier from the series of the 2-(C1- to C5)-alkylanthraqulnones, especially 2-ethylanthraqulnone (EAQ), and their tetrahydro derivatives. The reaction carriers-according to (I) make up 5 to 95 molar %, especially 20 to 50 molar % of all reaction carriers. The method Is distinguished by greater H2O2 capacity, Improved hydrogenatton kinetics and lesser susceptibility to disturbances. A method for making THIHAQ is also disclosed.

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