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. 02, 2014
Filed:
Dec. 15, 2009
Jarren Peters, Mannheim, DE;
Walter Disteldorf, Wachenheim, DE;
Katrin Friese, Mannheim, DE;
Thomas Schäfer, Mannheim, DE;
Oliver Bey, Niederkirchen, DE;
Jarren Peters, Mannheim, DE;
Walter Disteldorf, Wachenheim, DE;
Katrin Friese, Mannheim, DE;
Thomas Schäfer, Mannheim, DE;
Oliver Bey, Niederkirchen, DE;
BASF SE, , DE;
Abstract
The invention relates to a method for producing carboxylic acid esters by reacting a reaction mixture, comprising a carboxylic acid and/or a carboxylic acid anhydride, and an alcohol in a reaction system having one or more reactors, wherein reaction water is distilled off as an alcohol/water azeotrope with the exhaust vapor. In addition, the reaction mixture is treated with superheated alcohol vapor. The method allows the production of esters having a low acid number.