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. 27, 2018
Filed:
Jul. 26, 2013
Applicant:
General Electric Company, Schenectady, NY (US);
Inventors:
Hongchen Dong, Niskayuna, NY (US);
Larry Neil Lewis, Scotia, NY (US);
Stephen Robert Vasconcellos, Doylestown, PA (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/00 (2006.01); C08G 73/02 (2006.01); C02F 1/28 (2006.01); C02F 1/44 (2006.01); C02F 101/16 (2006.01);
U.S. Cl.
CPC ...
C02F 1/285 (2013.01); C08G 73/0206 (2013.01); C08G 73/0226 (2013.01); C02F 1/444 (2013.01); C02F 2101/163 (2013.01);
Abstract
A method for removing nitrate ions from a solution is presented. The method includes providing a polymer comprising a protonated amine moiety and an anion derived from an acid having a pKa value greater than about 1. The method further includes contacting the polymer with the solution to bind at least a portion of the nitrate ions in the solution with the polymer, and form a polymer-nitrate complex. The method furthermore includes separating at least a portion of the polymer-nitrate complex from the solution.