Publication Date

11-12-2019

Department

Ames Laboratory

Campus Units

Ames Laboratory

OSTI ID+

1578172

Report Number

IS-J 10077

DOI

10.1021/acssuschemeng.9b05741

Journal Title

ACS Sustainable Chemistry & Engineering

Abstract

A straightforward and environment-friendly process for acid-free leaching of rare-earth elements and cobalt, which are critical materials, from waste magnet materials has been developed. 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 allows 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.

DOE Contract Number(s)

AC02-07CH11358

Language

en

Publisher

Iowa State University Digital Repository, Ames IA (United States)

Available for download on Thursday, November 12, 2020

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