TY  - Journal Article
AU  - Forte, Federica
AU  - Yurramendi, Lourdes
AU  - Aldana, José Luis
AU  - Onghena, Bieke
AU  - Binnemans, Koen
TI  - Integrated process for the recovery of yttrium and europium from CRT phosphor waste
PY  - 2019
PB  - Royal Society of Chemistry
AB  - 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%.
SN  - 2046-2069
UR  - http://hdl.handle.net/11556/681
DX  - 10.1039/c8ra08158a
ER  -