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. 17, 2019
Filed:
Jan. 03, 2017
Applicant:
Arkema France, Colombes, FR;
Inventors:
Serge Tretjak, Roulhing, FR;
Nathalie Hess, Chatrian, FR;
Rose Aguiar, Meyzieu, FR;
Pierre-Emmanuel Conoir, Metz, FR;
Christophe Oses, Villeurbanne, FR;
Assignee:
Arkema France, Colombes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/54 (2006.01); C07C 67/08 (2006.01); B01D 3/14 (2006.01); B01D 5/00 (2006.01);
U.S. Cl.
CPC ...
C07C 67/54 (2013.01); B01D 3/141 (2013.01); B01D 5/006 (2013.01); C07C 67/08 (2013.01);
Abstract
The subject of the invention is a process for recovering/purifying a C-C(meth)acrylic ester from a crude reaction mixture comprising said ester, the process being carried out using a purification system comprising a divided wall column and a decanter, resulting in a simplification of the process and in a high productivity of the ester produced corresponding to the standards in terms of purity. The invention also relates to a process for producing C-C(meth)acrylic ester comprising this recovery/purification process.