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Catalytic Reduction of Pu(IV) with Formic Acid in Nitric Acid Solutions

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Abstract

Pu(IV) is reduced to Pu(III) in nitric acid solutions with formic acid in the presence of urea and 1% Pt/SiO2 catalyst. The kinetics of reduction were studied in 0.3-2.3 M HNO3 containing 0.2-1 M HCOOH, 0.1-0.5 M (NH2)2CO, and 0.01-0.1 g ml- 1 of 1% Pt/SiO2 at 30-60°C. At HNO3 concentration higher than 2 M, the Pu(IV) reduction is reversible because of catalytic decomposition of urea. The reduction mechanism is discussed.

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REFERENCES

  1. Bathellier, A. and Germaine, M., French Patent 2 212 610, 1972.

  2. Anan'ev, A.V. and Krot, N.N., Radiokhimiya, 1984, vol. 26,no. 5, pp. 635–638.

    Google Scholar 

  3. The Chemistry of the Actinide Elements, Katz, J., Seaborg, G.T., and Morss, L.R., Eds., London: Chapman and Hall, 1986, ch. 17.

    Google Scholar 

  4. Kratkii spravochnik fiziko-khimicheskikh velichin (Concise Handbook of Physicochemical Quantities), Mishchenko, K.P. and Ravdel', A.A., Eds., Leningrad: Khimiya, 1972.

    Google Scholar 

  5. Cecille, L. and Lecomte, M., Radioactive Waste Management Series. Denitration of Radioactive Liquid Waste, Cecille, L. and Halaszovich, H., Eds., London: Graham and Trotman, 1986, pp. 132–146.

    Google Scholar 

  6. Ananiev, A.V., Broudic, J.-C., Brossard, Ph., and Krot, N.N., Radiochim. Acta, 1997, vol. 78, pp. 145–152.

    Google Scholar 

  7. Koltunov, V.S. and Marchenko, V.I., Radiokhimiya, 1973, vol. 15,no. 6, p. 748.

    Google Scholar 

  8. Abdounnabi, H.M. and Ananiev, A.V., Proc. Int. Conf. on Fast Reactors and Related Fuel Cycles, Kyoto (Japan), 1991, vol. 4, report P6.9-16.

  9. Abdounnabi, H.M., Ananiev, A.V., and Krot, N.N., Abstracts of Papers, 21emes Journees des Actinides, Montechoro (Portugal), April 28–May 1, 1991, pp. 192–194.

  10. Abdounnabi, H.M., Ananiev, A.V., and Krot, N.N., J. Radioanal. Nucl. Chem., Lett., 1994, vol. 186, pp. 89–97.

    Google Scholar 

  11. Moelwyn-Hughes, E.A., The Chemical Statics and Kinetics of Solutions, London: Academic, 1971. Translated under the title Ravnovesie i kinetika reaktsii v rastvorakh, Moscow: Khimiya, 1975, p. 114.

    Google Scholar 

  12. Longstaff, J.V.L. and Singer, K., J. Chem. Soc., 1954, pp. 2604–2617.

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  1. Institute of Physical Chemistry, Russian Academy of Sciences, Moscow, Russia

    A. V. Anan'ev & V. P. Shilov

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  1. A. V. Anan'ev
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  2. V. P. Shilov
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Anan'ev, A.V., Shilov, V.P. Catalytic Reduction of Pu(IV) with Formic Acid in Nitric Acid Solutions. Radiochemistry 46, 242–245 (2004). https://doi.org/10.1023/B:RACH.0000031679.19590.ae

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  • DOI: https://doi.org/10.1023/B:RACH.0000031679.19590.ae

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