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:
Nov. 06, 1979
Filed:
Apr. 01, 1975
Applicant:
Inventor:
Gerhard O Kuehnhanss, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Baton Rouge, LA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
Acid mix produced by the sulfonation of olefin with gaseous SO.sub.3 is converted to sulfonic acid salts in a two-step conversion wherein the acid mix is partially converted in a first step reaction with anhydrous base providing an anhydrous intermediate product. In a subsequent step, the conversion is carried further by reacting the intermediate product with aqueous base.