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:
Sep. 28, 2010
Filed:
Mar. 31, 2005
Applicants:
Willibald Dafinger, Röhrnbach, DE;
Peter Holl, Emmerting, DE;
Wilhelm Kaiser, Burghausen, DE;
Jürgen Guba, Burghausen, DE;
Inventors:
Willibald Dafinger, Röhrnbach, DE;
Peter Holl, Emmerting, DE;
Wilhelm Kaiser, Burghausen, DE;
Jürgen Guba, Burghausen, DE;
Assignee:
Wacker Chemie AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
The efficiency of vinyl acetate production is increased by scrubbing of off gas followed by COabsorption. A portion of the off gas containing substantial quantities of ethylene is recycled to the process, whereas another portion is employed in another ethylene consuming reaction. Despite not removing non-reactive gases, selectivity and yield based on ethylene are both increased.