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:
Sep. 08, 1992
Filed:
Aug. 08, 1991
Applicant:
Inventors:
Nur R Gurak, Sarnia, CA;
Jacques M Hamard, Rixensart, BE;
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C01B / ;
U.S. Cl.
CPC ...
585867 ; 585864 ; 423243 ; 4232452 ;
Abstract
This invention provides a simple process for the removal of organo sulfide contaminants from lower C.sub.2 to C.sub.4 olefin feedstocks comprising washing the lower olefin containing the sulfide contaminant with a liquid C.sub.6 or higher olefin which is a solvent for the sulfur contaminant. The washing process tends to extract a substantial quantity of the sulfur contaminant from the lower olefin. The lower olefin is then separated from the higher olefin solution by evaporation or fractional distillation. The process provides for removal of greater than 90% by weight of organic sulfides present in lower olefin feedstocks.