Hydrometallurgy in the recycling of spent NdFeB permanent magnets
Book chapter, 2018
Neodymium-iron-boron (NdFeB) magnets are used in many applications, from small consumer electronics to future sustainable technologies, e.g., electric transportation and wind power. Rare earth elements (REEs) amount to about a third of the composition of NdFeB magnets. Given that REEs are presently considered critical and have very high supply risk, their recycling from end-of-life products has received increased attention. Magnet-containing streams are valuable secondary sources of REEs, e.g., neodymium, praseodymium, dysprosium, and terbium.
Leaching
Hydrometallurgy
Precipitation
NdFeB magnet
Recycling
Rare earth element
Solvent extraction
Urban mining
Neodymium
Author
Cristian Tunsu
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Waste Electrical and Electronic Equipment Recycling: Aqueous Recovery Methods
175-211
9780081020579 (ISBN)
Subject Categories
Other Environmental Engineering
Energy Systems
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1016/B978-0-08-102057-9.00008-1