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Title: Recovery of uranium from an irradiated solid target after removal of molybdenum-99 produced from the irradiated target

A process for minimizing waste and maximizing utilization of uranium involves recovering uranium from an irradiated solid target after separating the medical isotope product, molybdenum-99, produced from the irradiated target. The process includes irradiating a solid target comprising uranium to produce fission products comprising molybdenum-99, and thereafter dissolving the target and conditioning the solution to prepare an aqueous nitric acid solution containing irradiated uranium. The acidic solution is then contacted with a solid sorbent whereby molybdenum-99 remains adsorbed to the sorbent for subsequent recovery. The uranium passes through the sorbent. The concentrations of acid and uranium are then adjusted to concentrations suitable for crystallization of uranyl nitrate hydrates. After inducing the crystallization, the uranyl nitrate hydrates are separated from a supernatant. The process results in the purification of uranyl nitrate hydrates from fission products and other contaminants. The uranium is therefore available for reuse, storage, or disposal.
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Issue Date:
OSTI Identifier:
Los Alamos National Security, LLC LANL
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2013 Sep 30
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

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patent, May 1968

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patent, September 1969

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patent, May 2013

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patent-application, July 2003

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patent-application, August 2011

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patent-application, October 2011

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patent-application, November 2012

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patent-application, March 2015

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