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:
Oct. 27, 2009
Filed:
Aug. 02, 2004
Juergen Herwig, Huenxe, DE;
Martin Roos, Haltern am See, DE;
Georg Oenbrink, Duelmen, DE;
Bernd Guenzel, Haltern am See, DE;
Dirk Kuppert, Recklinghausen, DE;
Juergen Herwig, Huenxe, DE;
Martin Roos, Haltern am See, DE;
Georg Oenbrink, Duelmen, DE;
Bernd Guenzel, Haltern am See, DE;
Dirk Kuppert, Recklinghausen, DE;
Degussa AG, Duesseldorf, DE;
Abstract
The present invention relates to a process for the coammoximation, that is to say for the simultaneous ammoximation, of ketones, in particular of cyclic ketones such as cyclododecanone and cyclohexanone. Ammoximation is taken to mean here the preparation of oximes from ketones or aldehydes together with hydrogen peroxide and ammonia and in the presence of a catalyst which essentially consists of silicon, titanium and oxygen, for example titanium silicalite.