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:
Dec. 18, 2009
Applicants:
Nicolas Perret, Saint-Alban-de-Roche, FR;
Denis Revelant, Genas, FR;
Inventors:
Nicolas Perret, Saint-Alban-de-Roche, FR;
Denis Revelant, Genas, FR;
Assignee:
Vencorex France, Saint-Priest, FR;
Primary Examiner:
Int. Cl.
CPC ...
C07C 263/10 (2006.01); B01J 19/24 (2006.01); B01J 19/00 (2006.01);
U.S. Cl.
CPC ...
B01J 19/2415 (2013.01); C07C 263/10 (2013.01); B01J 2219/00006 (2013.01); C07C 2102/42 (2013.01); C07C 2101/16 (2013.01); B01J 19/0053 (2013.01); B01J 2219/00108 (2013.01); B01J 2219/0011 (2013.01);
Abstract
A process for phosgenating an amine comprising employing a plug-flow type reactor with internal recycle is disclosed. The process can be continuous, which makes it possible to prepare, in a single stage, a (poly)isocyanate with a good yield, without formation of byproducts and on simplifying the plant in order to carry out the process so as to promote safety.