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The reaction between solid UO2 and MnO2 in a sulfuric acid solution

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Abstract

In connection with the extensive use of pyrolusite in the sulfuric acid leaching of uranium from ores, a study was made of the reaction between UO2 and MnO2 in a sulfuric acid solution,and possible mechanisms were discussed. The experimental data show that the reaction apparently occurs at the points of contact of the hydrated surface layers of UO2 and MnO2; the rate of the process is limited by steric hindrances. On this basis the role of iron ions was also considered in the reaction between a solid oxidizing agent (pyrolusite) and primary minerals of uranium in the acid leaching of uranium-containing ores.

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Literature cited

  1. B. V. Nevskii, Atomnaya Énergiya6, 1, 5 (1959).

    Google Scholar 

  2. G. E. Kaplan, B. V. Nevskii,and B. N. Laskorin, Atomnaya Énergiya6, 2, 113 (1959).

    Google Scholar 

  3. J. Clegg and D. Foley, Uranium Ore Processing. Addison-Wesley Publ. Co., Reading, 1958.

    Google Scholar 

  4. A. Godin, Reports of the International Conference on the Peaceful Use of Atomic Energy (Geneva, 1955), Vol. 8, [in Russian] (Moscow, Metallurgy Press, 1958), p. 17.

    Google Scholar 

  5. A. I. Ponomarev, Methods for the Chemical Analysis of Minerals and Rocks. Vol. 1, [in Russian] (Moscow, Acad. Sci. USSR Press, 1951), p. 158.

    Google Scholar 

  6. P. N. Paley, Reports of the International Conference on the Peaceful Use of Atomic Energy (Geneva, 1955), Vol. 8 [in Russian] (Moscow, Metallurgy Press, 1958), p. 268, 271.

    Google Scholar 

  7. R. Evans, Quart. Revs,13, No. 1, 61 (1959).

    Google Scholar 

  8. W. Jost. Diffusion und chemische Reaktion in festen Stoffe, 1937.

  9. J. Hedvall. Reaktionsfähigkeit der festen Stoffe, 1938.

  10. J. Hedvall, and H. Jagitsch. Z. anorgan. und allgem. Chem.262, 49 (1950).

    Google Scholar 

  11. A. M. Ginstling, Studies of the Mechanism and Kinetics of Reactions in Mixtures of Solids. Thesis [in Russian] (Leningrad, 1952).

  12. J. MacKay and M. Wadsworth. Trans. ASME212, 597 (1958).

    Google Scholar 

  13. D. A. Frank-Kamenetskii, Diffusion and Heat Transfer in Chemical Kinetics [in Russian] (Moscow Acad. Sci. USSR Press, 1947).

  14. A. B. Zdanovskii, The Kinetics of Solution of Natural Salts under Conditions of Forced Convection [in Russian] (Leningrad State Chemistry Press, 1956).

  15. E. Ya. Rode, Oxygen Compounds of Manganese [in Russian] (Moscow, Acad. Sci. USSR Press, 1952) p. 131.

    Google Scholar 

  16. V. I. Spitsyn, G. M. Nesmeyanova,and E. A. Kanevskii, Zhur. Neorg. Khim.5, 9, 1938 (1960).

    Google Scholar 

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Authors
  1. E. A. Kanevskii
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  2. V. A. Pchelkin
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Additional information

In conclution we would like to thank V. G. Romanova for taking part in the work and L. V. Zverev for his useful comments.

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Kanevskii, E.A., Pchelkin, V.A. The reaction between solid UO2 and MnO2 in a sulfuric acid solution. The Soviet Journal of Atomic Energy 10, 133–137 (1961). https://doi.org/10.1007/BF01480218

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  • DOI: https://doi.org/10.1007/BF01480218

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