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. 20, 2016
Filed:
Feb. 22, 2013
Arkema France, Colombes, FR;
Philippe Leduc, Larajasse, FR;
Thierry Lannuzel, Villeurbanne, FR;
Dominique Garrait, Charly, FR;
Serge Hub, Villeurbanne, FR;
Emmanuel Guiraud, Saint-Genis Laval, FR;
Fabrice Domingues Dos Santos, Lyons, FR;
ARKEMA FRANCE, Colombes, FR;
Abstract
The present invention relates to the preparation of trifluoroethylene (VFor TrFE) by hydrogenolyzis of chlorotrifluoroethylene (CTFE) in the gaseous phase over a group VIII metal catalyst deposited on a support. This method can be used to obtain VFin an economical manner in conditions which minimize the risk of explosion of this molecule. Using a catalyst containing a group VIII metal and, more specifically, containing Pd deposited on a support and a specific series of steps of separation and purification makes it possible to obtain excellent CTFE conversion rates and high selectivity in VFat atmospheric pressure and at low temperatures.