A METHOD FOR PRODUCING CHEMICALS WHICH CAN BE USED FOR BLEACHING OF PULP TO THE PAPER INDUSTRY
A method for producing hydrogen peroxide by cyclic hydrogenation and oxidation of a working solution is described. By the use of low workin temperatures, a working solution containing an "all-tetra" hydroanthraquinone compound and free oxygen in the oxidation stage, a high yield of hydroge...
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| Format: | Patent |
| Sprache: | eng ; fre |
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| Zusammenfassung: | A method for producing hydrogen peroxide by cyclic hydrogenation and oxidation of a working solution is described. By the use of low workin temperatures, a working solution containing an "all-tetra" hydroanthraquinone compound and free oxygen in the oxidation stage, a high yield of hydrogen peroxide and minimal formation of by-products are obtained.
Procédé de production d'eau oxygénée par oxydation et hydrogénation cyclique d'une solution à traiter. L'emploi de basses températures de traitement permet d'obtenir un composé hydroanthraquinonique à 100 % "tétra" et de l'oxygène libre dans l'étape d'oxydation, un rendement élevé en eau oxygénée, et une formation minimisée de sous-produits. |
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