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:
Dec. 28, 1993
Filed:
Oct. 19, 1992
Applicant:
Inventors:
Robert R Frame, Glenview, IL (US);
Jeffery C Bricker, Buffalo Grove, IL (US);
Laurence O Stine, Western Springs, IL (US);
Thomas A Verachtert, Wheeling, IL (US);
Assignee:
UOP, Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ;
U.S. Cl.
CPC ...
208189 ; 208203 ; 208207 ; 208206 ; 502155 ; 502163 ; 502164 ; 502167 ;
Abstract
This invention relates to a process for improving the activity of a catalyst effective in sweetening a hydrocarbon fraction containing mercaptans. The process involves adding to the hydrocarbon fraction an effective amount of an aqueous solution comprising ammonium hydroxide, a metal chelate and an onium compound.