Investigation of the system ThO$_2$-NpO$_2$-P$_2$O$_5$.Solid solutions of thorium-neptunium (IV) phosphate-diphosphate - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of Nuclear Materials Year : 1998

Investigation of the system ThO$_2$-NpO$_2$-P$_2$O$_5$.Solid solutions of thorium-neptunium (IV) phosphate-diphosphate

Abstract

Considering that phosphate matrices could be potential candidates for the immobilization of actinides or for the final disposal of the excess plutonium from dismantled nuclear weapons, the chemistry of thorium phosphates has been re-examined. In the ThO/sub 2/-P/sub 2/O/sub 5/ system, the thorium phosphate-diphosphate Th/sub 4/(PO/sub 4/)/sub 4/P/sub 2/O/sub 7/ (TPD) can be synthesized by wet and dry chemical processes. The substitution of thorium by other tetravalent actinides like uranium or plutonium can be obtained for 0
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in2p3-00003983 , version 1 (16-02-2000)

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  • HAL Id : in2p3-00003983 , version 1

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N. Dacheux, A.C. Thomas, V. Brandel, M. Genet. Investigation of the system ThO$_2$-NpO$_2$-P$_2$O$_5$.Solid solutions of thorium-neptunium (IV) phosphate-diphosphate. Journal of Nuclear Materials, 1998, 257, pp.108-117. ⟨in2p3-00003983⟩
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