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:
Aug. 04, 2015
Filed:
Jul. 06, 2007
Serge Gonzalez, Decines, FR;
Jacques Vallet, Lyons, FR;
Arnaud Baudot, Vernaison, FR;
Helene Rodeschini, Lyons, FR;
Jean Pierre Reyt, Villette De Vienne, FR;
Serge Gonzalez, Decines, FR;
Jacques Vallet, Lyons, FR;
Arnaud Baudot, Vernaison, FR;
Helene Rodeschini, Lyons, FR;
Jean Pierre Reyt, Villette De Vienne, FR;
IFP ENERGIES NOUVELLES, Rueil Malmaison Cedex, FR;
Abstract
This invention relates to the field of processes for membrane separation and applies in particular to the purification of C2 or C3 olefins. This process makes it possible more particularly to separate propylene from a mixture that contains other C3 hydrocarbons such as propane. The membranes that are used in the process according to this invention are vitreous polymer-based membranes whose pattern contains a bis-phenyl-9,9-fluorene group.