Integrated process for the recovery of yttrium and europium from CRT phosphor waste

An integrated process flow sheet for the recovery of yttrium and europium from waste cathode-ray tube (CRT) phosphors was developed. This flow sheet is based on a sequence of roasting, leaching with organic acids and precipitation steps. Zinc was efficiently removed from the roasted CRT phosphors by...

Descripción completa

Detalles Bibliográficos
Autores principales: Forte, Federica, Yurramendi, Lourdes, Aldana, José Luis, Onghena, Bieke, Binnemans, Koen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9059565/
https://www.ncbi.nlm.nih.gov/pubmed/35518045
http://dx.doi.org/10.1039/c8ra08158a
_version_ 1784698339190636544
author Forte, Federica
Yurramendi, Lourdes
Aldana, José Luis
Onghena, Bieke
Binnemans, Koen
author_facet Forte, Federica
Yurramendi, Lourdes
Aldana, José Luis
Onghena, Bieke
Binnemans, Koen
author_sort Forte, Federica
collection PubMed
description An integrated process flow sheet for the recovery of yttrium and europium from waste cathode-ray tube (CRT) phosphors was developed. This flow sheet is based on a sequence of roasting, leaching with organic acids and precipitation steps. Zinc was efficiently removed from the roasted CRT phosphors by leaching with acetic acid, giving access to the rare earth content. Yttrium and europium were quantitatively leached from the residue by a 1 mol L(−1) methanesulphonic acid (MSA) solution. Precipitation with oxalic acid gave a mixed Y/Eu oxalate of high purity (>99 wt%). Co-precipitation of zinc was less than 2 wt%.
format Online
Article
Text
id pubmed-9059565
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher The Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-90595652022-05-04 Integrated process for the recovery of yttrium and europium from CRT phosphor waste Forte, Federica Yurramendi, Lourdes Aldana, José Luis Onghena, Bieke Binnemans, Koen RSC Adv Chemistry An integrated process flow sheet for the recovery of yttrium and europium from waste cathode-ray tube (CRT) phosphors was developed. This flow sheet is based on a sequence of roasting, leaching with organic acids and precipitation steps. Zinc was efficiently removed from the roasted CRT phosphors by leaching with acetic acid, giving access to the rare earth content. Yttrium and europium were quantitatively leached from the residue by a 1 mol L(−1) methanesulphonic acid (MSA) solution. Precipitation with oxalic acid gave a mixed Y/Eu oxalate of high purity (>99 wt%). Co-precipitation of zinc was less than 2 wt%. The Royal Society of Chemistry 2019-01-11 /pmc/articles/PMC9059565/ /pubmed/35518045 http://dx.doi.org/10.1039/c8ra08158a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Forte, Federica
Yurramendi, Lourdes
Aldana, José Luis
Onghena, Bieke
Binnemans, Koen
Integrated process for the recovery of yttrium and europium from CRT phosphor waste
title Integrated process for the recovery of yttrium and europium from CRT phosphor waste
title_full Integrated process for the recovery of yttrium and europium from CRT phosphor waste
title_fullStr Integrated process for the recovery of yttrium and europium from CRT phosphor waste
title_full_unstemmed Integrated process for the recovery of yttrium and europium from CRT phosphor waste
title_short Integrated process for the recovery of yttrium and europium from CRT phosphor waste
title_sort integrated process for the recovery of yttrium and europium from crt phosphor waste
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9059565/
https://www.ncbi.nlm.nih.gov/pubmed/35518045
http://dx.doi.org/10.1039/c8ra08158a
work_keys_str_mv AT fortefederica integratedprocessfortherecoveryofyttriumandeuropiumfromcrtphosphorwaste
AT yurramendilourdes integratedprocessfortherecoveryofyttriumandeuropiumfromcrtphosphorwaste
AT aldanajoseluis integratedprocessfortherecoveryofyttriumandeuropiumfromcrtphosphorwaste
AT onghenabieke integratedprocessfortherecoveryofyttriumandeuropiumfromcrtphosphorwaste
AT binnemanskoen integratedprocessfortherecoveryofyttriumandeuropiumfromcrtphosphorwaste

Ejemplares similares