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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Rare Metal Extraction & Processing
Presentation Title Recycling of Rare Earth Elements (REEs) from Scrap Nd-Fe-B Magnets
Author(s) Nityanand Singh, Pankaj Kumar Choubey, Rekha Panda, Rajesh Kumar Jyothi, Manis Kumar Jha
On-Site Speaker (Planned) Nityanand Singh
Abstract Scope Nd-Fe-B magnets find wide range of applications due to its high magnetic properties. At its end-of-life, huge quantity of scrap Nd-Fe-B magnets are generated, which are promising alternative resource for rare-earth elements (REEs). Recycling of scrap Nd-Fe-B magnets will mitigate the demand supply gap of REEs. Thus, the present paper reports development of feasible hydrometallurgical flow-sheet to recover REEs from Nd-Fe-B magnets. The process consists of roasting of magnets with 20% NaCl at 750C for 2 h followed by water leaching of the roasted mass at 75C for 60 min to produce REEs containing leach liquor. About 99.9% REEs was recovered and the left residue contained Fe, which was further calcined at 600C for 2 h to get red oxide pigment.
Proceedings Inclusion? Planned:
Keywords Extraction and Processing, Recycling and Secondary Recovery, Hydrometallurgy

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

An Innovated Hydrometallurgical Process for Recoveries of Critical and Rare Metals from Copper Anode Slimes
Biosorption as a Vital Tool for Metal Recovery in Effluent Treatment: Review
Di-phenols Functionalized Chitosan as Selective Adsorbents for Extraction of Germanium
Eutectic Freeze Crystallization for Recovery of Cobalt Sulfate in the Recycling of Li-ion Batteries
Experimental Investigation of Liquid Metal Leaching for Rare Earth Magnet Recycling
Extraction of Tungsten, Yttrium and Uranium from Tantalum – Niobium Ore from Muchinga Province in Zambia
Formation Rates of Different Zinc Oxide Crystal Morphologies Associated with the Recycling of Zn-ion Batteries
Leaching of Neodymium from Recycled NdFeB Magnet Powders Using Citric Acid
New Insights on Titanium(IV) Speciation to Improve the Purification of Concentrated Phosphoric Acid
Production of High-purity Mg Metal from Various MgO Resources through a Novel Electrolytic Process Using a Cu Cathode and Vacuum Distillation
Production of Micro-sized Metallic Tungsten Particles from Natural Wolframite and Scheelite via Sulfide Chemistry
Purification of an Indigenous Barite Mineral for Sustainability of Operation in the Nigerian Oil and Gas Industries
Pyrolysis of Waste Printed Circuit Boards: Optimization Using Response Surface Methodology and Characterization of Solid Product
Rare Earth Elements Extraction from an Ionic Clay from South America
Recovery and Separation of Vanadium and Tungsten from Spent SCR Catalyst by Hydrometallurgical/ Hybrid Routes
Recovery of Copper Metal from Discarded Printed Circuit Boards (PCBs) by Hydro and Electro Metallurgical Processes
Recycling of Copper and Gold from Waste Printed Circuit Boards by Leaching Followed by Solvent Extraction
Recycling of Rare Earth Elements (REEs) from Scrap Nd-Fe-B Magnets
Removal of Selenium from Chloride Media using Bioadsorbent
Separation of Rare Earth Elements from Monazite via Sulfidation
Studies on the Hydrometallurgical Recovery of Metals from Used and End of Life PCBs
Tantalum Recovery Technique for Recycling of Tantalum Coated Composite Materials
The Behaviour of Minor Metals in BOF Slag Under Different Additives

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