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. 02, 1996
Filed:
Jul. 12, 1994
Applicant:
Inventor:
Darrell L Gallup, Chino Hills, CA (US);
Assignee:
Union Oil Company of California, El Segundo, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210673 ; 210674 ; 210676 ; 210692 ; 210694 ;
Abstract
BTEX and other hydracarbons are removed from oil field and refinery waste streams by countercurrent extraction techniques. The contaminated waste water is contacted with adsorbent particles, selected to adsorb BTEX and other hydrocarbons, circulating in counter current fashion to the waste water stream.