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Modeling Preparative Chromatographic Separation of Heavy Rare Earth Elements and Optimization of Thulium Purification

Max-Hansen, Mark LU ; Knutson, Hans-Kristian LU ; Jönsson, Christian ; Degerman, Marcus LU and Nilsson, Bernt LU orcid (2015) In Advances in Materials Physics and Chemistry 5(5). p.151-160
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%.
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Rare Earth Elements, Chromatography, Model Calibration, Optimization, Multi-Objective, HDEHP
in
Advances in Materials Physics and Chemistry
volume
5
issue
5
pages
151 - 160
publisher
Scientific Research Publishing (SCIRP)
ISSN
2162-5328
DOI
10.4236/ampc.2015.55016
language
English
LU publication?
yes
id
c2dd7a80-2b84-4400-88ad-bb10ee58d48d (old id 5366425)
date added to LUP
2016-04-01 13:24:10
date last changed
2020-04-27 08:56:51
@article{c2dd7a80-2b84-4400-88ad-bb10ee58d48d,
  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%.}},
  author       = {{Max-Hansen, Mark and Knutson, Hans-Kristian and Jönsson, Christian and Degerman, Marcus and Nilsson, Bernt}},
  issn         = {{2162-5328}},
  keywords     = {{Rare Earth Elements; Chromatography; Model Calibration; Optimization; Multi-Objective; HDEHP}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{151--160}},
  publisher    = {{Scientific Research Publishing (SCIRP)}},
  series       = {{Advances in Materials Physics and Chemistry}},
  title        = {{Modeling Preparative Chromatographic Separation of Heavy Rare Earth Elements and Optimization of Thulium Purification}},
  url          = {{https://lup.lub.lu.se/search/files/3347122/5366426.pdf}},
  doi          = {{10.4236/ampc.2015.55016}},
  volume       = {{5}},
  year         = {{2015}},
}