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:
Feb. 26, 1991
Filed:
Nov. 08, 1989
Applicant:
Inventors:
Beth McCulloch, Barrington, IL (US);
Michael G Gatter, Elk Grove Village, IL (US);
Assignee:
UOP, Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
570211 ;
Abstract
A process for separating the isomers of dichlorobenzene from a feed mixture of the same. Separation of the isomers is effected by selective absorption and desorption and is susceptible to various flow schemes for performing continuous adsorptive separations. The process uses an X-type zeolite adsorbent having a mixture of sodium and potassium ions in the exchangeable cationic sites. The desorbent may be an alkyl benzene, such as toluene, xylene, p-diethylbenzene, etc.