Journal of Radioanalytical and Nuclear Chemistry

, Volume 301, Issue 2, pp 483–491

The effect of temperature on the sorption of U(VI) onto ZrP2O7 in the presence of oxalic acid

  • N. García González
  • E. Ordóñez Regil
  • D. A. Solís Casados
  • M. G. Almazán-Torres
  • E. Simoni
  • R. Drot
  • A. Jeanson
Article

DOI: 10.1007/s10967-014-3158-2

Cite this article as:
García González, N., Ordóñez Regil, E., Solís Casados, D.A. et al. J Radioanal Nucl Chem (2014) 301: 483. doi:10.1007/s10967-014-3158-2
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Abstract

The sorption of uranium onto ZrP2O7 in the presence of oxalic acid has been investigated as a function of temperature (20, 40 and 60 °C). Using several complementary analytical methods to characterize the solid surface, it has been shown that the oxalic acid interact with the zirconium diphosphate affecting its surface reactivity. A significant influence of temperature on the sorption reaction has been revealed in the batch experiments. Temperature dependence sorption data and microcalorimetric measurements have been used to determine enthalpy change associated to the sorption reaction. The results have shown that oxalic acid has an important effect on uranium sorption, which is more evident at 60 °C.

Keywords

Oxalic acidUraniumTemperature effectSorptionEnthalpy change

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • N. García González
    • 1
    • 2
    • 3
  • E. Ordóñez Regil
    • 1
  • D. A. Solís Casados
    • 2
  • M. G. Almazán-Torres
    • 1
  • E. Simoni
    • 3
  • R. Drot
    • 3
  • A. Jeanson
    • 3
  1. 1.Instituto Nacional de Investigaciones NuclearesOcoyoacacMexico
  2. 2.Programa de Doctorado de Ciencia de Materiales de la Facultad de QuímicaUniversidad Autónoma del Estado de MéxicoTolucaMexico
  3. 3.Groupe de Radiochimie, Institut de Physique NucléaireUniversité Paris Sud 11OrsayFrance