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Low temperature route to uranium nitride

United States Patent

7,582,232
September 1, 2009
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
A method of preparing an actinide nitride fuel for nuclear reactors is provided. The method comprises the steps of a) providing at least one actinide oxide and optionally zirconium oxide; b) mixing the oxide with a source of hydrogen fluoride for a period of time and at a temperature sufficient to convert the oxide to a fluoride salt; c) heating the fluoride salt to remove water; d) heating the fluoride salt in a nitrogen atmosphere for a period of time and at a temperature sufficient to convert the fluorides to nitrides; and e) heating the nitrides under vacuum and/or inert atmosphere for a period of time sufficient to convert the nitrides to mononitrides.
Burrell; Anthony K. (Los Alamos, NM), Sattelberger; Alfred P. (Darien, IL), Yeamans; Charles (Berkeley, CA), Hartmann; Thomas (Idaho Falls, ID), Silva; G. W. Chinthaka (Las Vegas, NV), Cerefice; Gary (Henderson, NV), Czerwinski; Kenneth R. (Henderson, NV)
The United States of America as represented by the United States Department of Energy (Washington, DC), N/A (
11/ 739,147
April 24, 2007
GOVERNMENT INTEREST The United States Government, as represented by the Department of Energy, has a paid-up license in the invention described and may manufacture and/or use this invention for governmental purposes in accordance with the terms of Contract No. DE-AC52-06NA25396.