Selective actinide extraction with a tri-synergistic mixture using a centrifugal contactor battery

G. Bilancia, A. Facchini, M. Ferrando, M. Giola, F. Maluta, Mario Mariani, M. Mazzuccato, C. Madic, S. Sabbioneda

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Abstract

The reprocessing of spent nuclear fuels produces a quantity of high-level liquid waste (HLLW), which is subsequentely vitrified. The most important contributors to the long-term radiotoxicity of the vitrified HLLW are the so-called minor actinides (MAs), which are neptunium, americium, and curium. This paper presents the results obtained during some extraction tests of americium(III) in a synthetic liquid waste representative of that coming from the PUREX and DIAMEX processes, obtained by dissolving the respective nitrate salts of the lanthanides(III) in a diluted solution of nitric acid and spiked with 241Am and 152Eu. The extraction process employed a tri-synergistic organic extractant mixture and a centrifugal contactor battery of eight stages. Copyright © Taylor & Francis, Inc.
Original languageEnglish
Pages (from-to)773 - 780
Number of pages8
JournalSolvent Extraction and Ion Exchange
Volume23
Issue number6
DOIs
Publication statusPublished - Nov 2005
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Bilancia, G., Facchini, A., Ferrando, M., Giola, M., Maluta, F., Mariani, M., ... Sabbioneda, S. (2005). Selective actinide extraction with a tri-synergistic mixture using a centrifugal contactor battery. Solvent Extraction and Ion Exchange, 23(6), 773 - 780. https://doi.org/10.1080/07366290500294905