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Recovery of rare earth elements through spent NdFeB magnet oxidation (first part)

Stopic, Srecko; Polat, Buse; Chung, Hanwen; Kaya, Elif Emil; Smiljanic, Slavko; Gürmen, Sebahattin; Friedrich, Bernd (MDPI-Multidisciplinary Digital Publishing Institute, 2022)

Due to their remarkable magnetic properties, such as a high maximum energy product, high remanence, and high coercivity, NdFeB magnets are used in a variety of technological applications. Because of their very limited ...

Recovery of rare earth elements from spent NdFeB-magnets: separation of iron through reductive smelting of the oxidized material (second part)

Chung, Hanwen; Stopic, Srecko; Kaya, Elif Emil; Gürmen, Sebahattin; Friedrich, Bernd (MDPI-Multidisciplinary Digital Publishing Institute, 2022)

This paper proposes a pyrometallurgical recycling method for end-of-life NdFeB magnets by oxidizing them in air and subsequently smelting them. The smelting process enabled the recovery of rare earth elements (REEs), ...

NdFeB Magnets recycling process: an alternative method to produce mixed rare earth oxide from Scrap NdFeB Magnets

Kaya, Elif Emil; Kaya, Ozan; Stopic, Srecko; Gürmen, Sebahattin; Friedrich, Bernd (MDPI, 2021)

Neodymium iron boron magnets (NdFeB) play a critical role in various technological applications due to their outstanding magnetic properties, such as high maximum energy product, high remanence and high coercivity. Production ...

Hydrometallurgical recycling of waste NdFeB magnets: design of experiment, optimisation of low concentrations of sulphuric acid leaching and process analysis

Uysal, Emircan; Al, Serhat; Kaya, Elif Emil; Stopic, Srecko; Gürmen, Sebahattin; Friedrich, Bernd (Taylor & Francis, 2022)

Efficient recovery of rare earth elements (REEs) from scrap NdFeB magnets is a significant requirement for a circular economy. Therefore, the development of a cost-effective and environmentally friendly leaching process ...