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:
Apr. 19, 2011
Filed:
Apr. 25, 2008
Applicants:
Gerard Hotier, Rueil Malmaison, FR;
Philibert Leflaive, Mions, FR;
Luc Wolff, Chapponnay, FR;
Inventors:
Assignee:
IFP Energies Nouvelles, Rueil Malmaison Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a process for producing high purity meta-xylene, comprising a step for separation by simulated moving bed adsorption starting from an aromatic C8 feed delivering a fraction which is rich in meta-xylene and a fraction which is depleted in meta-xylene, and a step for crystallization of the meta-xylene rich fraction. The purity of the meta-xylene produced is at least 99.5%.