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:
Aug. 08, 2006
Filed:
Apr. 08, 2004
Peter A. Dimas, Wheaton, IL (US);
Kenneth M. Mcgough, Charleston, WV (US);
Wesley L. Whipple, Naperville, IL (US);
Peter A. Dimas, Wheaton, IL (US);
Kenneth M. McGough, Charleston, WV (US);
Wesley L. Whipple, Naperville, IL (US);
Nalco Company, Naperville, IL (US);
Abstract
A method of enhancing the recovery of useful coal or potassium chloride or borax from screenbowl centrifuge separation operations comprising adding to the screenbowl centrifuge, from about 0.03 lbs active polymer/ton dry solids in centrifuge to about 0.70 lbs active polymer/ton dry solids in centrifuge, of a cationic terpolymer, wherein said cationic terpolymer is prepared by polymerizing from about 1 to about 99.1 mole percent of one or more cationic monomers, from about 0.1 to about 10 mole percent of one or more hydroxyalkyl(meth)acrylates and from one to about 98.1 mole percent of one or more nonionic monomers.