| 摘要 |
The invention relates to the anthraquinone cycle for producing hydrogen peroxide using at least two differently substituted 2-alkylanthraquinones and/or their tetrahydro derivatives. According to the inventive method, 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)-anthraquinone (IHAQ) and their di- and tetrahydro derivatives, such as especially, 2-(4-methylpentyl)- beta -tetrahydroanthraquinone (THIHAQ); and ii) at least one reaction carrier from the series of the 2-(C1- to C5)-alkylanthraquinones, especially 2-ethylanthraquinone (EAQ), and their tetrahydro derivatives, the reaction carriers according to i) making up 5 to 95 mol. %, especially 20 to 50 mol. % of all of the reaction carriers. The method is characterised by a greater H2O2 capacity, better hydrogenation kinetics and low susceptibility to failure. THIHAQ is also a novel substance.
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