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Model-Based Comparison of Batch and Continuous Preparative Chromatography in the Separation of Rare Earth Elements

Andersson, Niklas LU ; Knutson, Hans-Kristian LU ; Max-Hansen, Mark LU ; Borg, Niklas LU and Nilsson, Bernt LU (2014) In Industrial & Engineering Chemistry Research 53(42). p.16485-16493
Abstract
The demand for rare earth elements (REEs) is growing, while the future supply is uncertain. Their unique electronic characteristics make them irreplaceable, and the commercial value of pure fractions is high. A model-based simulation study is presented that compares batch chromatography with the twin-column MCSGP (multicolumn countercurrent solvent gradient purification) process for ion-exchange chromatography of the four-component system neodymium, samarium, europium, and gadolinium. The last three components are considered products with individual purity requirements of 99%. The twin-column process has been shown to be a good alternative to the batch process regarding modifier consumption and productivity since it enables internal... (More)
The demand for rare earth elements (REEs) is growing, while the future supply is uncertain. Their unique electronic characteristics make them irreplaceable, and the commercial value of pure fractions is high. A model-based simulation study is presented that compares batch chromatography with the twin-column MCSGP (multicolumn countercurrent solvent gradient purification) process for ion-exchange chromatography of the four-component system neodymium, samarium, europium, and gadolinium. The last three components are considered products with individual purity requirements of 99%. The twin-column process has been shown to be a good alternative to the batch process regarding modifier consumption and productivity since it enables internal recycling to achieve high purities. A new cut strategy for MCSGP is applied where subfractions are taken from each outlet. Two multiobjective optimizations with yield, solvent productivity, and productivity objectives show that the MCSGP process is a better alternative than batch chromatography. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Industrial & Engineering Chemistry Research
volume
53
issue
42
pages
16485 - 16493
publisher
The American Chemical Society
external identifiers
  • wos:000343687400039
  • scopus:84908181375
ISSN
0888-5885
DOI
10.1021/ie5023223
language
English
LU publication?
yes
id
e4880551-1664-43a9-9fa1-8c5e3eeba486 (old id 4876142)
date added to LUP
2014-12-22 13:25:53
date last changed
2017-04-02 03:44:44
@article{e4880551-1664-43a9-9fa1-8c5e3eeba486,
  abstract     = {The demand for rare earth elements (REEs) is growing, while the future supply is uncertain. Their unique electronic characteristics make them irreplaceable, and the commercial value of pure fractions is high. A model-based simulation study is presented that compares batch chromatography with the twin-column MCSGP (multicolumn countercurrent solvent gradient purification) process for ion-exchange chromatography of the four-component system neodymium, samarium, europium, and gadolinium. The last three components are considered products with individual purity requirements of 99%. The twin-column process has been shown to be a good alternative to the batch process regarding modifier consumption and productivity since it enables internal recycling to achieve high purities. A new cut strategy for MCSGP is applied where subfractions are taken from each outlet. Two multiobjective optimizations with yield, solvent productivity, and productivity objectives show that the MCSGP process is a better alternative than batch chromatography.},
  author       = {Andersson, Niklas and Knutson, Hans-Kristian and Max-Hansen, Mark and Borg, Niklas and Nilsson, Bernt},
  issn         = {0888-5885},
  language     = {eng},
  number       = {42},
  pages        = {16485--16493},
  publisher    = {The American Chemical Society},
  series       = {Industrial & Engineering Chemistry Research},
  title        = {Model-Based Comparison of Batch and Continuous Preparative Chromatography in the Separation of Rare Earth Elements},
  url          = {http://dx.doi.org/10.1021/ie5023223},
  volume       = {53},
  year         = {2014},
}