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. 15, 1997
Filed:
Nov. 13, 1995
Manfred Bergfeld, Erlenbach-Mechenhard, DE;
Martin Nywlt, Obernburg, DE;
Akzo Nobel, N.V., Velpergwg, NL;
Abstract
The invention relates to a method for manufacturing tert-butylamine from isobutene and ammonia in the presence of a silica alumina catalyst. The catalyst is in acid form, has an Si/Al ratio that has been adjusted by steam dealumination, has a crystallinity of at least 95%, and has an Na.sub.2 O content of less than 0.2 wt. %. The reaction is preferably conducted in the gas phase, with unreacted ammonia and unreacted isobutene being recycled into the reaction process. The selectivity of the catalyst for the formation of tert-butylamine is at least 99.5%.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile