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. 13, 2007
Filed:
May. 26, 2004
Applicants:
Peter A. Dimas, Wheaton, IL (US);
Kenneth M. Mcgough, Charleston, WV (US);
Inventors:
Peter A. Dimas, Wheaton, IL (US);
Kenneth M. McGough, Charleston, WV (US);
Assignee:
Nalco Company, Naperville, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/56 (2006.01); B01D 37/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of enhancing the recovery of useful coal or potassium chloride from screenbowl centrifuge separation operations comprising adding to the screenbowl centrifuge, from about 0.005 lbs active polymer/ton dry solids in centrifuge to about 0.70 lbs active polymer/ton dry solids in centrifuge, of an anionic copolymer, wherein said anionic copolymer is selected from the group comprising copolymers of acrylamide and acrylic acid and the known salts thereof.