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:
Jul. 13, 1993
Filed:
Oct. 22, 1991
Applicant:
Inventor:
Michael D Jones, Hanworth, GB;
Assignee:
The British Petroleum Company, p.l.c., London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562608 ;
Abstract
A process for removing iodide derivatives from liquid acetic acid and/or acetic anhydride comprises contacting the liquid acetic acid and/or acetic anhydride with a strong acid cation exchange resin having from about 4% to about 12% crosslinking, a surface area in the proton exchanged form of less than 10m.sup.2 g.sup.-1 after drying from the water wet state and a surface area of greater than 10m.sup.2 g.sup.-1 after drying from a wet state in which water has been replaced by methanol. The resin has at least one percent of its active sites converted to the silver form preferably from 30 to 70 percent.