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. 30, 2014
Filed:
May. 03, 2011
Ilias S. Kotsianis, Houston, TX (US);
Barbara F. M. Kimmich, Bernardsville, NJ (US);
Melchior A. Meilchen, Houston, TX (US);
Hang Wang, Houston, TX (US);
Prashant P. Barve, Pune, IN;
Bhaskar D. Kulkarni, Pune, IN;
Gopal M. Chaphekar, Pune, IN;
Ravindra W. Shinde, Pune, IN;
Milind Y. Gupte, Pune, IN;
Sanjay P. Kamble, Pune, IN;
Satish N. Shintre, Pune, IN;
Ilias S. Kotsianis, Houston, TX (US);
Barbara F. M. Kimmich, Bernardsville, NJ (US);
Melchior A. Meilchen, Houston, TX (US);
Hang Wang, Houston, TX (US);
Prashant P. Barve, Pune, IN;
Bhaskar D. Kulkarni, Pune, IN;
Gopal M. Chaphekar, Pune, IN;
Ravindra W. Shinde, Pune, IN;
Milind Y. Gupte, Pune, IN;
Sanjay P. Kamble, Pune, IN;
Satish N. Shintre, Pune, IN;
Celanese International Corporation, Dallas, TX (US);
Abstract
A semi-continuous process is provided for selective formation of a vinyl ester by reactive distillation from a corresponding carboxylic acid. Carboxylic acid, vinyl acetate, and a palladium acetate—bidentate ligand catalyst complex are provided and reacted in a typical embodiment. Acetic acid and vinyl acetate are continuously removed from the reaction mixture and vinyl acetate is recycled to the reaction mixture. The vinyl ester product is separated from the vinyl acetate, residual carboxylic acid, residual acetic acid, and catalyst.