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:
Feb. 28, 2006
Filed:
Jun. 04, 2004
Applicants:
Thomas Haas, Frankfurt, DE;
Guido Stochniol, Gelnhausen, DE;
Jürgen Rollmann, Pflaumheim, DE;
Inventors:
Assignee:
Degussa AG, Dusseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 301/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Aqueous-organic or organic hydrogen peroxide solutions can be produced by direct synthesis in the presence of a catalyst fixed bed and an organic solvent. According to the invention, a non-explosive gas mixture comprising Hand Ois employed and a liquid reaction medium comprising organic solvent and bromide and/or iodide is passed over the fixed bed with a cross-section loading of at least 0.3 m/h. In the case of a trickle bed procedure with a cross-section loading of 0.3 m/h to 2 m/h, 4 to 10 wt. % methanolic HOsolutions can be prepared with a high productivity.