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:
Mar. 17, 2015
Filed:
Dec. 06, 2011
Florian Klasovsky, Haltern am See, DE;
Thomas Haas, Muenster, DE;
Thomas Tacke, Alzenau, DE;
Jan Christoph Pfeffer, Hanau, DE;
Michael Rimbach, Herne, DE;
Michael Volland, Duelmen, DE;
Michiel Janssen, The Hague, NL;
Roger Sheldon, Hoog-Kappel, NL;
Juergen Haberland, Haltern am See, DE;
Florian Klasovsky, Haltern am See, DE;
Thomas Haas, Muenster, DE;
Thomas Tacke, Alzenau, DE;
Jan Christoph Pfeffer, Hanau, DE;
Michael Rimbach, Herne, DE;
Michael Volland, Duelmen, DE;
Michiel Janssen, The Hague, NL;
Roger Sheldon, Hoog-Kappel, NL;
Juergen Haberland, Haltern am See, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
The invention relates to a method for the oxidation of a primary or secondary alcohol, preferably to form an aldehyde or ketone, comprising the following steps: a) providing a catalyst composition comprising at least one compound containing a nitroxyl radical, at least one NO source, at least one carbon or mineral acid or an anhydride of a carbon or mineral acid; b) producing a reaction mixture by adding at least one primary or secondary alcohol and a gas comprising oxygen and optionally one or more than one solvent to the catalyst composition from step a) or step e); c) incubating the reaction mixture from step b) at a temperature of between 0 and 100° C. or at the boiling point of the solvent; d) simultaneously with or subsequent to step c): crystallizing the reaction product; and e) recovering the catalyst composition by removing the crystallized reaction product from the reaction mixture obtained in step d).