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:
Feb. 14, 2017
Filed:
Oct. 17, 2013
Applicant:
Georgia-pacific Chemicals Llc, Atlanta, GA (US);
Inventors:
Michael S. Kerns, Wichita, KS (US);
Pablo G. Dopico, The Woodlands, TX (US);
John B. Hines, Atlanta, GA (US);
Assignee:
Georgia-Pacific Chemicals LLC, Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03D 1/02 (2006.01); B03D 1/016 (2006.01); B03D 1/18 (2006.01); C22B 3/00 (2006.01); B03D 1/002 (2006.01); B03D 1/018 (2006.01); B03D 1/004 (2006.01); B03D 1/008 (2006.01);
U.S. Cl.
CPC ...
C22B 3/00 (2013.01); B03D 1/002 (2013.01); B03D 1/016 (2013.01); B03D 1/018 (2013.01); B03D 1/02 (2013.01); B03D 1/021 (2013.01); B03D 1/008 (2013.01); B03D 1/0046 (2013.01); B03D 2201/005 (2013.01); B03D 2201/06 (2013.01); B03D 2203/02 (2013.01); B03D 2203/06 (2013.01);
Abstract
Methods for purifying one or more value materials are provided. The method can include contacting an aqueous mixture comprising a value material and a contaminant with a dispersant and a depressant to produce a treated mixture. A weight ratio of the dispersant to the depressant can be from about 1:1 to about 30:1. The method can also include recovering a purified product comprising the value material from the treated mixture. The purified product can have a reduced concentration of the contaminant relative to the aqueous slurry.