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.
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
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