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. 12, 1991
Filed:
Sep. 26, 1989
Applicant:
Inventor:
Hermann A Zinnen, Evanston, IL (US);
Assignee:
UOP, Des Plains, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585826 ; 585827 ; 585828 ; 2083 / ;
Abstract
The chromatographic adsorption separation of coumarone from indene-containing coal tar distillate feed mixtures with an alkali metal (Group IA) exchanged X-zeolite and polar materials, e.g., ketones, alcohols or esters as desorbents. Also disclosed is a process for separating a coumarone-indene coextract with sodium-exchanged Y zeolite and toluene as desorbent.