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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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Supplementary files

Article information


Submitted
02 Oct 2018
Accepted
21 Dec 2018
First published
11 Jan 2019

This article is Open Access

RSC Adv., 2019,9, 1378-1386
Article type
Paper

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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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
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    [Original citation] - Published by The Royal Society of Chemistry.

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