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:
Dec. 15, 1998
Filed:
May. 30, 1997
Applicant:
Inventors:
Michael Sakuth, Marl, DE;
Udo Peters, Marl, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; B01D / ;
U.S. Cl.
CPC ...
585639 ; 585638 ; 585640 ; 203 29 ; 203 99 ; 203D / ;
Abstract
The present invention is directed to a process for the acid-catalyzed cracking of tertiary butyl alcohol in a reaction distillation column. The advantage of the process of the present invention compared with conventional processes is that the two-phase, liquid-liquid region of the tertiary system TBA/water/isobutene is avoided and a high space-time yield is achieved. This is achieved by the arrangement of the catalyst pack above the liquid phase zone (bottom) and by the use of a dephlegmator thus achieving the isolation of isobutene of high purity.