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:
Mar. 24, 1998
Filed:
Mar. 29, 1995
Applicant:
Inventors:
Darrell L Gallup, Chino Hills, CA (US);
Danilo M Capampangan, Diamond Bar, CA (US);
Assignee:
Union Oil Company of California, El Segundo, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C02F / ; C02F / ;
U.S. Cl.
CPC ...
210708 ; 210734 ; 210694 ; 210660 ; 210667 ; 210669 ;
Abstract
Emulsified oil contained in oil-in-water emulsions is removed from waste water by mixing cationic polyacrylamide high polymers with the waste water, forming oil-containing aggregations and separating the aggregations from the demulsified water. The demulsified water can then be more effectively polished, typically by contact with adsorbent particles, and subsequently passed to environmentally acceptable disposal locations.