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:
Jun. 14, 2011
Filed:
Nov. 20, 2009
Applicants:
Stanley J. Frey, Palatine, IL (US);
Jason T. Corradi, Arlington Heights, IL (US);
Richard S. Kempf, Deerfield, IL (US);
David W. Liu, Palatine, IL (US);
Inventors:
Stanley J. Frey, Palatine, IL (US);
Jason T. Corradi, Arlington Heights, IL (US);
Richard S. Kempf, Deerfield, IL (US);
David W. Liu, Palatine, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/12 (2006.01); C07C 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Meta-xylene is recovered from admixture with other Caromatic hydrocarbons including ortho-xylene by liquid phase adsorptive separation. Performance is improved by reducing the concentration of ortho-xylene through adding a sidecut to a prefractionator preparing the feedstock to adsorptive separation.