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Title: Recovering and recycling uranium used for production of molybdenum-99

A processes for recycling uranium that has been used for the production of molybdenum-99 involves irradiating a solution of uranium suitable for forming fission products including molybdenum-99, conditioning the irradiated solution to one suitable for inducing the formation of crystals of uranyl nitrate hydrates, then forming the crystals and a supernatant and then separating the crystals from the supernatant, thus using the crystals as a source of uranium for recycle. Molybdenum-99 is recovered from the supernatant using an adsorbent such as alumina. Another process involves irradiation of a solid target comprising uranium, forming an acidic solution from the irradiated target suitable for inducing the formation of crystals of uranyl nitrate hydrates, then forming the crystals and a supernatant and then separating the crystals from the supernatant, thus using the crystals as a source of uranium for recycle. Molybdenum-99 is recovered from the supernatant using an adsorbent such as alumina.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1413208
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM) LANL
Patent Number(s):
9,842,664
Application Number:
14/038,424
Contract Number:
AC52-06NA25396
Resource Relation:
Patent File Date: 2013 Sep 26
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Works referenced in this record:

Study on the separation of molybdenum-99 and recycling of uranium to water boiler reactor
journal, January 1989
  • Cheng, W. L.; Lee, C. S.; Chen, C. C.
  • International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, Vol. 40, Issue 4, p. 315-324
  • DOI: 10.1016/0883-2889(89)90224-4

Improved processes of molybdenum-99 production
journal, June 1999
  • Dadachova, K.; La Riviere, K.; Anderson, P.
  • Journal of Radioanalytical and Nuclear Chemistry, Vol. 240, Issue 3, p. 935-938
  • DOI: 10.1007/BF02349877

The system uranyl sulphate-water—I: Preparation and characterization of the phases in the system
journal, May 1969

Separation of 99Mo from a simulated fission product solution by precipitation with a-benzoinoxime
journal, January 2002
  • Hwang, D. S.; Choung, W. M.; Kim, Y. K.
  • Journal of Radioanalytical and Nuclear Chemistry, Vol. 254, Issue 2, p. 255-262
  • DOI: 10.1023/A:1021659429587

Challenges of Extracting and Purifying Fission-Produced Molybdenum-99
journal, September 2000
  • McDonald, Marion J.; Carson, Susan D.; Naranjo, Gerald E.
  • Industrial & Engineering Chemistry Research, Vol. 39, Issue 9, p. 3146-3150
  • DOI: 10.1021/ie990377h

Crystallization of Uranium Complexes for Partitioning of Spent Nuclear Fuel
book, June 2006
  • Mullins, Don; Jarvinen, Gordon; Mayne, Michael
  • Separations for the Nuclear Fuel Cycle in the 21 st Century , Vol. 933, Issue Chapter 12, p. 183-197
  • DOI: 10.1021/bk-2006-0933.ch012

Large scale production of fission 99Mo by using fuel elements of a research reactor as starting material
journal, August 1984
  • Münze, R.; Hladik, O.; Bernhard, G.
  • The International Journal of Applied Radiation and Isotopes, Vol. 35, Issue 8, p. 749-754
  • DOI: 10.1016/0020-708X(84)90081-4

Behavior of Actinide Elements and Fission Products in Recovery of Uranyl Nitrate Hexahydrate Crystal by Cooling Crystallization Method
journal, April 2011
  • Nakahara, Masaumi; Koizumi, Tsutomu; Nomura, Kazunori
  • Nuclear Technology, Vol. 174, Issue 1, p. 109-118
  • DOI: 10.13182/NT11-A11684

Effect of crystal size on purity of uranyl nitrate hexahydrate crystalline particles grown in nitric acid medium
journal, November 2012

Enhancement of Decontamination Performance of Impurities for Uranyl Nitrate Hexahydrate Crystalline Particles by Crystal Purification Operation
journal, April 2011
  • Nakahara, Masaumi; Koizumi, Tsutomu; Nomura, Kazunori
  • Nuclear Technology, Vol. 174, Issue 1, p. 77-84
  • DOI: 10.13182/NT11-A11681

Precipitation Behavior of Dicesium Tetravalent Plutonium Hexanitrate in Cooling Crystallization of Uranyl Nitrate Hexahydrate
journal, February 2011
  • Nakahara, Masaumi; Koizumi, Tsutomu; Nomura, Kazunori
  • Nuclear Technology, Vol. 173, Issue 2, p. 183-190
  • DOI: 10.13182/NT11-A11547

Purification Rate of Uranyl Nitrate Hexahydrate Crystal for Transuranium Elements on Isothermal Sweating Phenomenon
journal, November 2010
  • Nakahara, Masaumi; Nomura, Kazunori; Koizumi, Tsutomu
  • Industrial & Engineering Chemistry Research, Vol. 49, Issue 22, p. 11661-11666
  • DOI: 10.1021/ie1012097

Scrambling to Close the Isotope Gap
journal, January 2011

The isolation of 99Mo from fission material for use in the 99Mo/99mTc generator for medical use
journal, January 2004