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Separation of elements by means of fractional sublimation of their \-diketonates in the vapours of \-diketones

Abstract

A possibility to use exchange reaction of metal \-diketonates and the vapours of \-diketones for the separation of volatile \-diketonate complexes by the method of fractional sublimation has been studied. When a mixture of thenoyltrifluoroacetonates of95Zr−95Nb and Th−233Pa is treated with a carrier gas containing hexafluoroacetylacetone vapours, zirconium and thorium, unlike niobium and protactinium, form volatile hexafluoroacetyl-acetonates which sublimate quite completely at 115°C. Niobium and protactinium remain in the initial sample in the form of nonvolatile compounds.

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Travnikov, S.S., Fedoseev, E.V., Davydov, A.V. et al. Separation of elements by means of fractional sublimation of their \-diketonates in the vapours of \-diketones. Journal of Radioanalytical and Nuclear Chemistry Letters 93, 217–225 (1985). https://doi.org/10.1007/BF02170238

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Keywords

  • Physical Chemistry
  • Zirconium
  • Inorganic Chemistry
  • Exchange Reaction
  • Niobium