The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2007
Filed:
Aug. 06, 2004
Applicants:
Gustaaf Goor, Hanau, DE;
Eugen Staab, Hösbach, DE;
Jürgen Glenneberg, Offenbach, DE;
Inventors:
Assignee:
Degussa AG, Düsseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C01B 15/023 (2006.01);
U.S. Cl.
CPC ...
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.