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. 03, 2009
Filed:
Dec. 20, 2007
Marianne Omeis, Dorsten, DE;
Guenther Koehler, Marl, DE;
Manfred Neumann, Marl, DE;
Thomas Kuebelbaeck, Duelmen, DE;
Marianne Omeis, Dorsten, DE;
Guenther Koehler, Marl, DE;
Manfred Neumann, Marl, DE;
Thomas Kuebelbaeck, Duelmen, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
A continuous process for decarboxylating carboxylic acids proceeds by I.) initially charging a carbonyl compound as a catalyst in a solvent at reaction temperature, to obtain a catalyst solution; II.) metering a carboxylic acid into the catalyst solution as an aqueous solution, aqueous suspension or as a water-comprising solid, to obtain a reaction mixture; and III.) continuously removing a mixture of CO, solvent, water and a reaction product or mixture of reaction products from the reaction mixture as a vapor.