Aida Abbasalizadeh, Annelies Malfliet
In the present work, the selective extraction of rare earth (RE) metals from NdFeB magnets is investigated by studying the effects of various fluxes, namely AlF3, ZnF2, FeF3, and Na3AlF6 in the LiF-NdFeB system. The objective is to convert RE from RE magnets into fluoride salt melt. Results demonstrate the complete selective separation of neodymium and dysprosium from the magnets while keeping iron and boron unreacted. The formed rare earth fluoride can subsequently be processed via an electrolysis route within the same reactor to deposit RE as a cathode product. XRD and EPMA analyses of the reacted samples confirm that AlF3, ZnF2, and FeF3 serve as effective fluorinating agents for extracting rare earth elements from NdFeB magnets, converting them to REF3. The findings affirm the feasibility of recovering rare earth metals from scrap NdFeB magnets, facilitating a single-step extraction process utilizing the aforementioned fluxes.
@article{309a8d7c-c335-4512-b199-7810c14ace13,
title={Electrochemical Recovery of Rare Earth Elements from Magnets: Conversion of Rare Earth Based Metals into Rare Earth Fluorides in Molten Salts},
author={Aida Abbasalizadeh and Annelies Malfliet},
year={2017},
language={en}
}TY - JOUR TI - Electrochemical Recovery of Rare Earth Elements from Magnets: Conversion of Rare Earth Based Metals into Rare Earth Fluorides in Molten Salts AU - Aida Abbasalizadeh AU - Annelies Malfliet PY - 2017 LA - en ER -
Oyuna Tsydenova, Magnus Bengtsson
This review paper summarizes the existing knowledge on the chemical hazards associated with recycling and other end-of-life treatment options of waste
Jirang Cui, Hans Jørgen Roven
Rapid growth in electronic equipment consumption has generated large quantities of electronic waste containing hazardous substances and high-value met
Printed circuit boards (PCBs) from electronic gadgets at the end of their useful life period are currently being dumped in landfills or incinerated, c