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POLYMERS GRAFTED WITH ORGANIC PHOSPHOROUS COMPOUNDS FOR EXTRACTING URANIUM FROM SOLUTIONS

United States Patent Application

20150190783
A1
View the Complete Application at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
Complexing or chelating agents that offer strong, selective bonding with uranium as well as a broad pH range of effectiveness, specifically including the pH range around 8.2, together with the acrylic double bonds required for radiation-induced grafting on polymers to remove uranium from a solution such as seawater. The novel adsorbing species are phosphorus-containing molecules, in particular organic phosphates, phosphonates and phosphoric acids. Organic phosphorus compounds, for example, organic phosphates, phosphonates, and phosphoric acids, are attached to polymer fibers to form fibers, fiber fabrics or membranes that are effective, or show activity, in uranium adsorption.
Tissot, Chanel (Hyattsville, MD), Barkatt, Aaron (Silver Spring, MD), Al-Sheikhly, Mohamad I. (Potomac, MD)
UNIVERSITY OF MARYLAND (College Park MD), THE CATHOLIC UNIVERSITY OF AMERICA (Washington DC)
14/ 412,892
August 20, 2013
GOVERNMENT RIGHTS [0002] The present disclosure was made with U.S. Government support under Grant No. DEAC07051D14517 awarded by the U.S. Department of Energy. The U.S. Government has certain rights in the present disclosure.