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U.S. Department of Energy
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AMMONIUM BIFLUORIDE FUSION OF IGNITED PLUTONIUM DIOXIDE

Technical Report ·
DOI:https://doi.org/10.2172/4117476· OSTI ID:4117476
An ammonium bifluoride fusion process for plutonium recovery from ignited (1000 deg C) plutonium dioxide was developed. The fusion mass can be readily taken up in aluminum nitrate solution. Results of these studies show an average plutonium recovery of 95 percent in the final aqueous solution. The fusion method has a short time cycle (three hours), utilizes small aqueous solution volumes (one liter ANN per 35 grams of original PuO/sub 2/), and the plutonium product solution in aluminum nitrate is suitable for direct blending into the existing Recuplex system. In addition, the only off-gas handling equipment required is a small water scrubber. It is recommended that the method be given further testing in a plant-scale production test. The method also has application for plutonium recovery from incinerator ash, and for plutonium metal or skulls which have previously been converted to plutonium dioxide by steam oxidation or controlled burning. Direct fusion of metal or skulls may be possible, but the uncertain reactivity of these materials may make this approach undesirable. (auth)
Research Organization:
General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
Sponsoring Organization:
US Atomic Energy Commission (AEC)
DOE Contract Number:
W-31-109-ENG-52
NSA Number:
NSA-18-012254
OSTI ID:
4117476
Report Number(s):
HW-68655
Country of Publication:
United States
Language:
English