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Title: Converting acrylic fibers to amidoxime-carboxylate containing polymer adsorbents for sequestering uranium and other elements from water

Patent ·
OSTI ID:1632601

A fiber comprising a carbon chain backbone and amidoxime, carboxylate, and nitrile pendant groups. The fiber may be used for removing uranium from seawater and toxic metals from drinking water.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA); University of Idaho (Moscow, ID)
Patent Number(s):
10,570,027
Application Number:
15/179,766
OSTI ID:
1632601
Resource Relation:
Patent File Date: 06/10/2016
Country of Publication:
United States
Language:
English

References (23)

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Porous amidoxime-group-containing membrane for the recovery of uranium from seawater journal October 1987
Ion Exchange Apparatus Having Increased Efficiency patent-application August 2010
Composite fiber adsorbent for rapid uptake of uranyl from seawater journal August 1988
MCM-41 silica particles grafted with polyacrylonitrile: Modification in to amidoxime and carboxyl groups for enhanced uranium removal from aqueous medium journal May 2016
Fiber-Based Adsorbents Having High Adsorption Capacities for Recovering Dissolved Metals and Methods Thereof patent-application March 2013
Comparison of Amidoxime Adsorbents Prepared by Cografting Methacrylic Acid and 2-Hydroxyethyl Methacrylate with Acrylonitrile onto Polyethylene journal August 2000
Polymeric Amidoximes and Their Derivatives and a Method of Preparing Same patent November 1962
Towards understanding KOH conditioning of amidoxime-based polymer adsorbents for sequestering uranium from seawater journal January 2015
Preparation of hydrophilic amidoxime fibers by cografting acrylonitrile and methacrylic acid from an optimized monomer composition journal October 2000
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Surface-functionalized polyolefin fibers and their use in methods for extracting metal ions from liquid solutions patent August 2019
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Extracting Uranium from Seawater: Promising AI Series Adsorbents journal November 2015
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Characteristics of uranium adsorption by amidoxime membrane synthesized by radiation-induced graft polymerization journal December 1987
Surface-Functionalized Polyolefin Fibers and Their Use in Methods for Extracting Metal Ions from Liquid Solutions patent-application November 2017