Recycling of Critical Metals from Light‐Emitting Diodes

Abstract: Light‐emitting diodes (LED) are widely used for energy savings. A lot of different materials and especially metals are needed to produce LED. End‐of‐life LED contain critical metals like indium or rare earth elements. In this study, first a thermochemical step is used to recover the critical metal indium from LED with hydrochloric acid‐containing vapor from polyvinyl chloride as chlorine source. Then, the LED residue is leached with sulfuric acid and hydrogen peroxide. From the leachate, the heavy rare earth element lutetium can be extracted with n‐octanol and tributyl phosphate.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Recycling of Critical Metals from Light‐Emitting Diodes ; day:21 ; month:08 ; year:2024 ; extent:6
Chemie - Ingenieur - Technik ; (21.08.2024) (gesamt 6)

Creator
Peer, Michael
Fehn, Thomas
Hofmann, Alexander
Berninger, Burkhard
Kunz, Werner

DOI
10.1002/cite.202400043
URN
urn:nbn:de:101:1-2408221407316.239454969214
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:56 AM CEST

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Associated

  • Peer, Michael
  • Fehn, Thomas
  • Hofmann, Alexander
  • Berninger, Burkhard
  • Kunz, Werner

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