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, 2008
Filed:
Jan. 19, 2007
Applicants:
Armin Rix, Marl, DE;
Frank Höper, Haltern am See, DE;
Jochen Praefke, Oer-Erkenschwick, DE;
Wilfried Büschken, Haltern am See, DE;
Inventors:
Armin Rix, Marl, DE;
Frank Höper, Haltern am See, DE;
Jochen Praefke, Oer-Erkenschwick, DE;
Wilfried Büschken, Haltern am See, DE;
Assignee:
OXENO Olefinchemie GmbH, Marl, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 29/76 (2006.01); C07C 29/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing low-water ethanol from at least two streams of relatively water-rich ethanol that have a different water content by dewatering at membranes. The low-water ethanol can be used to prepare ethyl tert-butyl ether (ETBE).