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:
Jun. 20, 1995
Filed:
Apr. 21, 1994
Applicant:
Inventor:
Frank K Botz, Port Neches, TX (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
210776 ; 210767 ; 210774 ; 210690 ; 522-3 ;
Abstract
A method has been discovered for recovering polyoxyalkylene glycols from wastewater. A skimming surface is heated to a temperature above the cloud point. The heated surface is contacted with the wastewater, causing the polymer to deposit. Deposited polymer skimmed from the surface is recovered. Heating, or other processing of the bulk wastewater is avoided.