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Title: Sustainable Urban Mining of Critical Elements from Magnet and Electronic Wastes

Abstract

Here, we created a straightforward and environment-friendly process for acid-free leaching of rare-earth elements and cobalt, which are vital materials, from waste magnet materials. The process also allows for selective leaching of rare-earth elements from magnet-containing electronic wastes, such as end-of-life hard disk drives and electric motors. The use of copper salts eliminates the use of volatile toxic acids in the dissolution and separation processes, which provides for a more eco-friendly approach to recovering critical elements and a safer work environment. Recovered critical materials were shown to be suitable for reinsertion into the materials supply chain.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]
  1. Ames Lab., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States); Stockholm Univ. (Sweden)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Advanced Manufacturing Office (EE-5A)
OSTI Identifier:
1578172
Report Number(s):
IS-J-10077
Journal ID: ISSN 2168-0485
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Accepted Manuscript
Journal Name:
ACS Sustainable Chemistry & Engineering
Additional Journal Information:
Journal Volume: 8; Journal Issue: 3; Journal ID: ISSN 2168-0485
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Acid-free leaching; Rare-earth permanent magnets; Rare-earth recovery; Sustainability

Citation Formats

Prodius, Denis, Gandha, Kinjal, Mudring, Anja-Verena, and Nlebedim, Ikenna C. Sustainable Urban Mining of Critical Elements from Magnet and Electronic Wastes. United States: N. p., 2019. Web. doi:10.1021/acssuschemeng.9b05741.
Prodius, Denis, Gandha, Kinjal, Mudring, Anja-Verena, & Nlebedim, Ikenna C. Sustainable Urban Mining of Critical Elements from Magnet and Electronic Wastes. United States. doi:10.1021/acssuschemeng.9b05741.
Prodius, Denis, Gandha, Kinjal, Mudring, Anja-Verena, and Nlebedim, Ikenna C. Tue . "Sustainable Urban Mining of Critical Elements from Magnet and Electronic Wastes". United States. doi:10.1021/acssuschemeng.9b05741.
@article{osti_1578172,
title = {Sustainable Urban Mining of Critical Elements from Magnet and Electronic Wastes},
author = {Prodius, Denis and Gandha, Kinjal and Mudring, Anja-Verena and Nlebedim, Ikenna C.},
abstractNote = {Here, we created a straightforward and environment-friendly process for acid-free leaching of rare-earth elements and cobalt, which are vital materials, from waste magnet materials. The process also allows for selective leaching of rare-earth elements from magnet-containing electronic wastes, such as end-of-life hard disk drives and electric motors. The use of copper salts eliminates the use of volatile toxic acids in the dissolution and separation processes, which provides for a more eco-friendly approach to recovering critical elements and a safer work environment. Recovered critical materials were shown to be suitable for reinsertion into the materials supply chain.},
doi = {10.1021/acssuschemeng.9b05741},
journal = {ACS Sustainable Chemistry & Engineering},
number = 3,
volume = 8,
place = {United States},
year = {2019},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on November 12, 2020
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