Chemistry of inorganic compounds – Oxygen or compound thereof – Peroxide
Reexamination Certificate
2007-07-03
2007-07-03
Langel, Wayne A. (Department: 1754)
Chemistry of inorganic compounds
Oxygen or compound thereof
Peroxide
C423S589000, C423S590000
Reexamination Certificate
active
10912757
ABSTRACT:
The invention concerns a process for the preparation of hydrogen peroxide by the anthraquinone cyclic process. The process includes a regeneration stage in which working solution is regenerated by being brought into contact with an aqueous solution containing an alkyl anthrahydroquinone and/or an alkyl tetrahydroanthrahydroquinone in deprotonated form. The working solution regenerated in the regeneration stage is returned to the cyclic process.
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Glenneberg Jürgen
Goor Gustaaf
Staab Eugen
Degussa - AG
Langel Wayne A.
Law Office of Michael A. Sanzo, LLC
Sanzo Michael A.
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