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:
Jan. 26, 2010
Filed:
Apr. 14, 2004
Ulrich Steinbrenner, Nuestadt, DE;
Thomas Narbeshuber, Mannheim, DE;
Joerg Unger, Boehl-Iggelheim, DE;
Peter Zehner, Ludwigshafen, DE;
Soeren Zimdahl, Schriesheim, DE;
Regina Benfer, Altrip, DE;
Ulrich Steinbrenner, Nuestadt, DE;
Thomas Narbeshuber, Mannheim, DE;
Joerg Unger, Boehl-Iggelheim, DE;
Peter Zehner, Ludwigshafen, DE;
Soeren Zimdahl, Schriesheim, DE;
Regina Benfer, Altrip, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
In a process for the preparation of alkylaromatic compounds by reacting C-olefins, or alcohols from which C-olefins are formed under the reaction conditions, with an aromatic hydrocarbon in the presence of an alkylation catalyst, the reaction is carried out in a reactor cascade of at least two reactors, where each of the reactors comprises the alkylation catalyst, at least 80% of the aromatic hydrocarbon are fed into the first reactor of the reactor cascade, and at least 40% of the olefins are intermediately fed in after the first reactor.