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:
Jan. 05, 1993
Filed:
Nov. 12, 1991
Applicant:
Inventors:
Santi Kulprathipanja, Inverness, IL (US);
Kenneth Kuhnle, St. Charles, IL (US);
Marjorie S Patton, Darien, IL (US);
Richard L Fergin, Mount Prospect, IL (US);
Assignee:
UOP, Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585828 ; 585820 ; 585826 ;
Abstract
The separation of naphthalene in high purity from coal tar or petroleum fractions by an adsorptive chromatographic process and liquid phase with lithium-exchanged X zeolite as the adsorbent and aromatic desorbents.