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:
Dec. 07, 2010
Filed:
May. 27, 2008
Applicants:
Johannes Ruwwe, Niederkassel, DE;
Kai-martin Krüger, Essen, DE;
Udo Knippenberg, Marl, DE;
Volker Brehme, Nottuln-Appelhülsen, DE;
Manfred Neumann, Marl, DE;
Inventors:
Johannes Ruwwe, Niederkassel, DE;
Kai-Martin Krüger, Essen, DE;
Udo Knippenberg, Marl, DE;
Volker Brehme, Nottuln-Appelhülsen, DE;
Manfred Neumann, Marl, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 31/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a process for preparing an alcoholic solution of an alkali metal alkoxide from alkali metal hydroxide and alcohol in a reaction column, the alcohol and the alkali metal hydroxide being conducted in countercurrent, which is characterized in that a reflux ratio of at least 0.05 is established in the reaction column.