Abel Thekeparampil Varghese, Anjana Das
The critical role of NdFeB permanent magnets in the digital electronics and renewable energy sectors underscores the necessity for sustainable recovery methods for Neodymium (Nd). Traditional recovery techniques, predominantly reliant on solvent extraction, face drawbacks including high energy demands, extensive chemical use, and significant secondary organic waste generation. This study presents an innovative methodology employing Thioglycolic Acid and Choline chloride (TGA-ChCl) to synthesize deep eutectic solvents (DESs) for the leaching of Nd from spent NdFeB magnets. Vermiculite is introduced as an adsorbent in the subsequent recovery process. Key analyses, such as FTIR, confirm the formation of DES and its effectiveness in leaching, while NMR spectroscopy highlights the aliphatic hydrocarbon presence within DES. XRD and SEM analyses detail the crystallinity and structural characteristics of the materials involved.
@article{29daafce-a71d-471f-88d6-347a7b8ec872,
title={2025 Varghese DES Leaching of NdFeB Magnets},
author={Abel Thekeparampil Varghese and Anjana Das},
year={2026},
language={en}
}TY - JOUR TI - 2025 Varghese DES Leaching of NdFeB Magnets AU - Abel Thekeparampil Varghese AU - Anjana Das PY - 2026 LA - en ER -
The leachability tests for manufacturing scrap TV boards (STVB) have indicated the release of metals beyond the limit levels with potential problems f
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