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:
Apr. 22, 2003
Filed:
Apr. 25, 2001
Process for the cleavage of alkyl tert-alkyl ethers into isoolefins and alkanols over acid catalysts
Applicant:
Inventors:
Michael Sakuth, Marl, DE;
Axel Tuchlenski, Recklinghausen, DE;
Dieter Reusch, Marl, DE;
Andreas Beckman, Recklinghausen, DE;
Assignee:
OXENO Olefinchemie GmbH, Marl, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 2/700 ; C07C 2/718 ; C07C 2/900 ; C07C 2/910 ; C07C 1/00 ;
U.S. Cl.
CPC ...
C07C 2/700 ; C07C 2/718 ; C07C 2/900 ; C07C 2/910 ; C07C 1/00 ;
Abstract
Alkyl tert-alkyl ethers are cleaved into the corresponding isoolefins and alkanols by a process comprising acid-catalyzed reactive distilling an alkyl tert-alkyl ether fed into the reaction zone of a reactive distillation apparatus as an azeotrope of the alkyl tert-alkyl ether and the corresponding alkanol, wherein the reactive distillation apparatus is configured from bottom to top as a bottom zone, at least one distillation zone and a reaction zone. The process is suitable for the cleavage of primary, secondary and tertiary alkyl tert-alkyl ethers, in particular MTBE.