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:
Oct. 13, 2009
Filed:
Jul. 08, 2004
Matthias Frauenkron, Freinsheim, DE;
Holger Evers, Mannheim, DE;
Johann-peter Melder, Böhl-Iggelheim, DE;
Roderich Röttger, Mannheim, DE;
Markus Siegert, Heidelberg, DE;
Till Gerlack, Ludwigshafen, DE;
Jan Nouwen, Brecht, BE;
Thomas Krug, Worms, DE;
Matthias Frauenkron, Freinsheim, DE;
Holger Evers, Mannheim, DE;
Johann-Peter Melder, Böhl-Iggelheim, DE;
Roderich Röttger, Mannheim, DE;
Markus Siegert, Heidelberg, DE;
Till Gerlack, Ludwigshafen, DE;
Jan Nouwen, Brecht, BE;
Thomas Krug, Worms, DE;
BASF Aktiengesellschaft, , DE;
Abstract
Preparation of ethyleneamines by reacting monoethanolamine (MEOA) with ammonia in the presence of a catalyst in a reactor (1) and separating the resulting reaction product, where ethylenediamine (EDA) obtained in the separation is reacted in a separate reactor (2) in the presence of a catalyst to give diethylenetriamine (DETA), and the resulting reaction product is passed to the separation of the reaction product resulting from reactor 1.