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Issue 3, 2019, Issue in Progress
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Integrated process for the recovery of yttrium and europium from CRT phosphor waste

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Abstract

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%.

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

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Publication details

The article was received on 02 Oct 2018, accepted on 21 Dec 2018 and first published on 11 Jan 2019


Article type: Paper
DOI: 10.1039/C8RA08158A
Citation: RSC Adv., 2019,9, 1378-1386
  • Open access: Creative Commons BY-NC license
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    Integrated process for the recovery of yttrium and europium from CRT phosphor waste

    F. Forte, L. Yurramendi, J. L. Aldana, B. Onghena and K. Binnemans, RSC Adv., 2019, 9, 1378
    DOI: 10.1039/C8RA08158A

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