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Volume 32 Issue 5
Mar.  2025
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REN Meng, LI Jia, LIU Jinhong, ZHU Changgui. Recovery of UMo Alloy from UMo/Al Dispersion Fuel Plates by Dissolution[J]. Nuclear Power Engineering, 2011, 32(5): 54-58.
Citation: REN Meng, LI Jia, LIU Jinhong, ZHU Changgui. Recovery of UMo Alloy from UMo/Al Dispersion Fuel Plates by Dissolution[J]. Nuclear Power Engineering, 2011, 32(5): 54-58.

Recovery of UMo Alloy from UMo/Al Dispersion Fuel Plates by Dissolution

  • Received Date: 2010-06-17
    Available Online: 2025-03-08
  • Methods for dissolving UMo/Al dispersion fuel plates in the compounded mixed basic aqueous(NaOH and NaNO3) are studied on laboratory scale.After removing the clad and the matrix of the sub-standard UMo/Al dispersion fuel elements,the U loss ratios are calculated and the granularity distributions of the recovered UMo alloy powder are analyzed by the metallurgical microscope.Besides,the phase structure and the composition of the recovered UMo alloy powder are analyzed by the XRD.The results indicate that as the concentration of NaOH increases,uranium loss ratio increases;but as the concentration of NaNO3 in-creases,U loss ration increases firstly and then decreases subsequently;generally,the U recovery ratios are more than 99.3%.The granularity of recovered UMo powders are very small and most parts of U have been oxidated to UO2.Therefore,further study is required to determined whether the recovered UMo alloy could be returned to the product line.

     

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