C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 50/18 (2006.01) C01B 15/023 (2006.01)
Patent
CA 2328106
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.
L'invention concerne le cycle anthraquinone pour préparer du peroxyde d'hydrogène à l'aide d'au moins deux 2-alkylanthraquinones substituées différemment et/ou de leurs dérivés de tétrahydro. La solution de travail à utiliser contient (i) au moins un support de réaction de la série 2-(4-méthyle-3-pentényle)-anthraquinone (IHEAQ), 2-(4-méhtylpentyle)-anthraquinone (IHAQ) et ses dérivés di- ou tétrahydro, tels que notamment 2-(4-méthylpentyle)-.beta.-tétrahydroanthraquinone (THINAQ), et (ii) au moins un support de réaction de la série des 2-(C¿1?-C¿5?)alkylanthraquinones, notamment 2-éthylanthraquinone (EAQ), et leurs dérivés tétrahydro. Les supports de réaction selon (i) représentent entre 5 et 95 % en mole, notamment entre 20 et 50 % en mole de l'ensemble des supports de réaction. Ce procédé se caractérise par une capacité H¿2?O¿2? renforcée, une meilleure cinétique d'hydrogénation et une propension réduite aux dérangements. THIAQ est une nouvelle substance.
Angert Hubert
Glenneberg Jurgen
Goor Gustaaf
Staab Eugen
Degussa-Huls Aktiengesellschaft
Evonik Degussa Gmbh
Marks & Clerk
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