Process for the manufacture of hydrogen peroxide

Details Process for the manufacture of hydrogen peroxide Process for the manufacture of hydrogen peroxide

C - Chemistry, Metallurgy

01

B

C01B 15/023 (2006.01)

Patent

CA 2319337

A process is disclosed concerning the manufacture of hydrogen peroxide by the so-called anthraquinone process (AO-process), and in particular concerning the improvement of an essential process step of said AO-process, i.e. an improvement of the hydrogenation step. The inventive hydrogenation step of the AO-process is carried out in a conventional hydrogenation reactor containing a fixed bed of the hydrogenation catalyst by passing a foaming mixture, which is formed of the anthraquinone containing working solution and the hydrogenating gas, downwards through the fixed-bed catalyst.

L'invention porte sur un procédé de fabrication du peroxyde d'hydrogène par ce qu'on appelle le processus anthraquinone (processus-AO), et notamment sur l'amélioration d'une étape de traitement essentielle du processus AO, c'est-à-dire une amélioration de l'étape d'hydrogénation. Cette étape d'hydrogénation du processus AO est réalisée dans un réacteur d'hydrogénation traditionnel contenant un lit fixe de catalyseur d'hydrogénation et consiste à faire passer, vers le bas dans le catalyseur à lit fixe, un mélange moussant, constitué de la solution de travail renfermant l'anthraquinone et du gaz hydrogénant.

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