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Experimental productivity rate optimization of rare earth element separation through preparative solid phase extraction chromatography.

Knutson, Hans-Kristian LU ; Max-Hansen, Mark LU ; Jönsson, Christian; Borg, Niklas LU and Nilsson, Bernt LU (2014) In Journal of Chromatography A 1348. p.47-51
Abstract
Separating individual rare earth elements from a complex mixture with several elements is difficult and this is emphasized for the middle elements: Samarium, Europium and Gadolinium. In this study we have accomplished an overloaded one-step separation of these rare earth elements through preparative ion-exchange high-performance liquid chromatography with an bis (2-ethylhexyl) phosphoric acid impregnated column and nitric acid as eluent. An inductively coupled plasma mass spectrometry unit was used for post column element detection. The main focus was to optimize the productivity rate, subject to a yield requirement of 80% and a purity requirement of 99% for each element, by varying the flow rate and batch load size. The optimal... (More)
Separating individual rare earth elements from a complex mixture with several elements is difficult and this is emphasized for the middle elements: Samarium, Europium and Gadolinium. In this study we have accomplished an overloaded one-step separation of these rare earth elements through preparative ion-exchange high-performance liquid chromatography with an bis (2-ethylhexyl) phosphoric acid impregnated column and nitric acid as eluent. An inductively coupled plasma mass spectrometry unit was used for post column element detection. The main focus was to optimize the productivity rate, subject to a yield requirement of 80% and a purity requirement of 99% for each element, by varying the flow rate and batch load size. The optimal productivity rate in this study was 1.32kgSamarium/(hmcolumn(3)), 0.38kgEuropium/(hmcolumn(3)) and 0.81kgGadolinium/(hmcolumn(3)). (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chromatography A
volume
1348
pages
47 - 51
publisher
Elsevier
external identifiers
  • pmid:24835593
  • wos:000337770600005
  • scopus:84901500486
ISSN
0021-9673
DOI
10.1016/j.chroma.2014.04.085
language
English
LU publication?
yes
id
1de214ed-199b-43c3-a940-b4214302cccb (old id 4454332)
date added to LUP
2014-06-05 14:33:22
date last changed
2017-08-20 03:01:07
@article{1de214ed-199b-43c3-a940-b4214302cccb,
  abstract     = {Separating individual rare earth elements from a complex mixture with several elements is difficult and this is emphasized for the middle elements: Samarium, Europium and Gadolinium. In this study we have accomplished an overloaded one-step separation of these rare earth elements through preparative ion-exchange high-performance liquid chromatography with an bis (2-ethylhexyl) phosphoric acid impregnated column and nitric acid as eluent. An inductively coupled plasma mass spectrometry unit was used for post column element detection. The main focus was to optimize the productivity rate, subject to a yield requirement of 80% and a purity requirement of 99% for each element, by varying the flow rate and batch load size. The optimal productivity rate in this study was 1.32kgSamarium/(hmcolumn(3)), 0.38kgEuropium/(hmcolumn(3)) and 0.81kgGadolinium/(hmcolumn(3)).},
  author       = {Knutson, Hans-Kristian and Max-Hansen, Mark and Jönsson, Christian and Borg, Niklas and Nilsson, Bernt},
  issn         = {0021-9673},
  language     = {eng},
  pages        = {47--51},
  publisher    = {Elsevier},
  series       = {Journal of Chromatography A},
  title        = {Experimental productivity rate optimization of rare earth element separation through preparative solid phase extraction chromatography.},
  url          = {http://dx.doi.org/10.1016/j.chroma.2014.04.085},
  volume       = {1348},
  year         = {2014},
}