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. 17, 2019
Filed:
Feb. 18, 2014
Ifp Energies Nouvelles, Rueil-malmaison, FR;
Arkema France, Colombes, FR;
Catherine Laroche, Vernaison, FR;
Damien Leinekugel Le Cocq, Lyons, FR;
Philibert LeFlaive, Mions, FR;
Frederic Augier, Saint Symphorien D'Ozon, FR;
Ludivine Bouvier, Orthez, FR;
Cecile Lutz, Gan, FR;
Sylvie Szendrovics, Arthez-de-Bearn, FR;
Quitterie Persillon, Morlaas, FR;
IFP ENERGIES NOUVELLES, Reuil-malmaison, FR;
Arkema France, Colombes, FR;
Abstract
Process for separating xylenes starting from a feed comprising cuts of isomers of aromatic hydrocarbons containing 8 carbon atoms, in a simulated moving bed, by selective adsorption of a xylene isomer in the presence of a desorbent, by means of particles of agglomerated zeolitic adsorbent based on zeolite crystals with a number-average diameter less than or equal to 1.2 μm, wherein the number-average diameter of said particles of adsorbent is between 150 μm and 500 μm and the mechanical strength measured by the Shell method series SMS1471-74 adapted for agglomerates with a size below 500 μm is greater than or equal to 2 MPa.