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:
Jul. 05, 2005
Filed:
Oct. 18, 2002
Michael Koch, Speyer, DE;
Alexander Wartini, Heidelberg, DE;
Tilman Sirch, Schifferstadt, DE;
Matthias Dernbach, Dossenheim, DE;
Michael Koch, Speyer, DE;
Alexander Wartini, Heidelberg, DE;
Tilman Sirch, Schifferstadt, DE;
Matthias Dernbach, Dossenheim, DE;
BASF AG, Ludwigshafen, DE;
Abstract
A method for removing trialkyl ammonium formate from a methylol alkanes obtained by condensation of formaldehyde with a higher aldehyde. The invention is characterized in that trialkyl ammonium formate is decomposed at a high temperature using catalysts containing at least one metal from groups 8-12 of the classification of elements in the presence of gas containing hydrogen. The method makes it possible to separate trialkyl ammonium formate according to the organic Cannizzaro method and according to the hydrogenation method.