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Reduced Enrichment for Research and Test Reactors
Nuclear Engineering Division at Argonne
U.S. Department of Energy

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Abstracts and Available Papers Presented at the
1997 International RERTR Meeting

DISSOLUTION OF LOW-ENRICHED UO2/AI DISPERSION PLATES IN
ALKALINE PEROX1DE SOLUTION

C. Conner, S. Aase, D. G. Wygmans, and G. F. Vandegrift
Argonne National Laboratory
Argonne, Illinois U.S.A.

D. Wu
University of Illinois at Urbana-Champaign
Urbana, Illinois U.S.A.

S. Landsberger
University of Illinois at Urbana-Champaign
Urbana, Illinois U.S.A.

ABSTRACT

A simple empirical model was developed to predict the rate of UO2 dissolution in alkaline peroxide solutions. This showed that UO2 could be dissolved in alkaline peroxide solutions at a rate high enough to be practical for use in the recovery of 99Mo from irradiated UO2/Al dispersion targets. Once it was shown that the rate of dissolution of UO2 was sufficiently high to be useful, compacts of UO2 and Al powder were dissolved, and the distribution of uranium and activation and fission products was measured through the various dissolution steps. These compacts simulate the "meat" of a UO2/Al dispersion target. The test results show promise for the use of a low-enriched UO2/Al dispersion target for the production of 99Mo.


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Argonne National Laboratory
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Email: conner@cmt.anl.gov

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