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. 25, 1980
Filed:
Apr. 05, 1979
Applicant:
Inventor:
Gifford G McClaflin, Ponca City, OK (US);
Assignee:
Conoco, Inc., Ponca City, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210708 ; 210683 ; 210639 ; 210749 ;
Abstract
A method of removing specific water-soluble anionic surfactants from water is disclosed. Briefly, the method comprises forming an emulsion by adding a nonionic surfactant and a hydrocarbon to the water and anionic surfactant. The emulsion is broken, with the anionic and nonionic surfactant being present in the hydrocarbon layer.