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Leaching characteristics and kinetics of radioactive element uranium and thorium from Ta/Nb tailing

  • Zhirong LiuEmail author
  • Taoyuan Xiu
  • Ying Du
  • Yun Wang
Article
  • 36 Downloads

Abstract

The tantalum (Ta)/niobium (Nb) tailing is the tailing after smelting Ta/Nb ore. The tailing contains a certain amount of radioactive element uranium (U) and thorium (Th). U and Th from Ta/Nb tailing were leached by nitric acid and sulfuric acid. Leaching effect and kinetics were investigated under the conditions of different acid concentration, temperature, liquid–solid ratio and time. The results showed that the leaching effects of sulfuric acid on U and Th were much better than that of nitric acid. Kinetic analysis shows that the leaching of U and Th by nitric acid and sulfuric acid are surface chemical reaction.

Keywords

Ta/Nb tailing Uranium Thorium Leaching 

Notes

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (11875105, 21866006, 21601033), and Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province (20172BCB22020).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2020

Authors and Affiliations

  • Zhirong Liu
    • 1
    • 2
    Email author
  • Taoyuan Xiu
    • 1
    • 3
  • Ying Du
    • 1
    • 3
  • Yun Wang
    • 1
    • 3
  1. 1.State Key Laboratory of Nuclear Resources and EnvironmentEast China University of TechnologyNanchangChina
  2. 2.School of Chemistry, Biological and Materials ScienceEast China University of TechnologyNanchangChina
  3. 3.School of Nuclear Science and EngineeringEast China University of TechnologyNanchangChina

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