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:
May. 19, 2009
Filed:
Dec. 13, 2005
Matthias Göring, Hofheim, DE;
Michael Hoffmockel, Niedernhausen, DE;
Jürgen Lingnau, Mainz, DE;
Karl-friedrich Mück, Wiesbaden, DE;
Matthias Göring, Hofheim, DE;
Michael Hoffmockel, Niedernhausen, DE;
Jürgen Lingnau, Mainz, DE;
Karl-Friedrich Mück, Wiesbaden, DE;
Ticona GmbH, , DE;
Abstract
A process for preparing acetals from aldehydes and alcohols is carried out by generating a reaction/distillation zone charged with an acidic fixed bed catalyst in a distillation column, feeding the aldehyde and the alcohol to the reaction/distillatlon zone and at least partly converting them to the acetal, heating the column bottom disposed below the reaction/distillation zone in order to at least partly evaporate the bottom's mixture and to establish a defined temperature in the reaction/distillation zone, feeding an extractant into a rectifying section of the column, disposed above the reaction/distillation zone and condensing a product having more than 90% by weight of acetal at the top of the column.