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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.:

US 11000844 B1

PDFFull Text
Date of Patent:
May. 11, 2021

Filed:

Apr. 09, 2019

Ion exchange resins selective for the complexation of univalent anions in aqueous solutions

Applicant:

Techsource, Inc., Los Alamos, NM (US);

Inventor:

George M. Murray, Tullahoma, TN (US);

Assignee:

TechSource, Inc., Los Alamos, NM (US);

Attorneys:

Peacock Law P.C.

Philip D. Askenazy

Deborah A. Peacock

Primary Examiner:

Betty J Forman

Int. Cl.
CPC ...
G01N 21/64 (2006.01); B01J 39/20 (2006.01); B01J 45/00 (2006.01); B01D 15/36 (2006.01); C02F 1/42 (2006.01); B01D 15/10 (2006.01); C22B 3/00 (2006.01); C22B 3/04 (2006.01); C22B 3/42 (2006.01); B01J 41/14 (2006.01); B01J 41/05 (2017.01); C02F 103/10 (2006.01); C02F 103/00 (2006.01); C02F 1/28 (2006.01); C02F 101/12 (2006.01); C02F 101/20 (2006.01); C02F 103/06 (2006.01); C02F 103/36 (2006.01);
U.S. Cl.
CPC ...
B01J 39/20 (2013.01); B01D 15/10 (2013.01); B01D 15/361 (2013.01); B01D 15/363 (2013.01); B01J 41/05 (2017.01); B01J 41/14 (2013.01); B01J 45/00 (2013.01); C02F 1/42 (2013.01); C22B 3/04 (2013.01); C22B 3/42 (2013.01); C22B 11/04 (2013.01); G01N 21/64 (2013.01); C02F 1/285 (2013.01); C02F 2001/422 (2013.01); C02F 2101/12 (2013.01); C02F 2101/20 (2013.01); C02F 2103/007 (2013.01); C02F 2103/06 (2013.01); C02F 2103/10 (2013.01); C02F 2103/365 (2013.01); C02F 2209/003 (2013.01); Y02P 10/20 (2015.11);
Abstract

Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.

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