Synthesis and investigation of uranyl molybdate UO2MoO 4

Takayuki Nagai, Nobuaki Sato, Shin Ichi Kitawaki, Akihiro Uehara, Toshiyuki Fujii, Hajimu Yamana, Munetaka Myochin

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In order to examine easily synthetic conditions of uranyl molybdate, UO2MoO4, used for the reprocessing process study of spent nuclear oxide fuels in alkaline molybdate melts, the uranium molybdate compounds were produced from U3O8 powder and anhydrous MoO 3 reagent. The results of having investigated them in solid state by using X-ray diffractometry and Raman spectrometry, it was confirmed that UO 2MoO4 could be synthesized by heating mixed powder of U3O8 and MoO3 with stoichiometric mole ratio at 770°C for 4 h under air atmosphere. Moreover, adding this UO 2MoO4 into Li2MoO4Na 2MoO4 eutectic melt, most of the dissolved uranium species in the melt were observed as hexa-valent uranyl ions by absorption spectrophotometry.

Original languageEnglish
Pages (from-to)397-403
Number of pages7
JournalJournal of Nuclear Materials
Volume433
Issue number1-3
DOIs
Publication statusPublished - 2013 Jan 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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    Nagai, T., Sato, N., Kitawaki, S. I., Uehara, A., Fujii, T., Yamana, H., & Myochin, M. (2013). Synthesis and investigation of uranyl molybdate UO2MoO 4. Journal of Nuclear Materials, 433(1-3), 397-403. https://doi.org/10.1016/j.jnucmat.2012.10.010