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Search: L773:2162 5328 OR L773:2162 531X

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  • Max-Hansen, Mark, et al. (author)
  • Modeling Preparative Chromatographic Separation of Heavy Rare Earth Elements and Optimization of Thulium Purification
  • 2015
  • In: Advances in Materials Physics and Chemistry. - : Scientific Research Publishing, Inc.. - 2162-5328 .- 2162-531X. ; 5:5, s. 151-160
  • Journal article (peer-reviewed)abstract
    • Rare Earth Elements are in growing demand globally. This paper presents a case study of applied mathematical modeling and multi objective optimization to optimize the separation of heavy Rare Earth Elements, Terbium-Lutetium, by means of preparative solid phase extraction chromatography, which means that an extraction ligand, HDEHP, is immobilized on a C18 silica phase, and nitric acid is used as an eluent. An ICP-MS was used for online detection of the Rare Earths. A methodology for calibration and optimization is presented, and applied to an industrially relevant mixture. Results show that Thulium is produced at 99% purity, with a productivity of 0.2 - 0.5 kg Tm per m3 stationary phase and second, with Yields from 74% to 99%.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Nilsson, Bernt (1)
Jönsson, Christian (1)
Knutson, Hans-Kristi ... (1)
Max-Hansen, Mark (1)
Degerman, Marcus (1)
University
Lund University (1)
Language
English (1)
Year
2015 (1)

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