<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Neodymium magnets currently dominate the magnet market due to their superior magnetic properties with maximum volume minimization. In this paper, the results of X-ray analysis for two types of magnetic powder obtained from the recovered magnets traditionally used in electric motors and hard disk have been presented. The NdFeB magnets are composed of 25-35 wt. % rare earth elements (RE) and the rest being transition metals (mainly Fe.). RE, other than Nd, such Dy, Pr, Tb and Gd or exogen elements, other than Fe, such as Al, Co, Ga, Nb, Si, Cu and Zr can also be present as minor admixtures. This paper brings an opportunity to introduce the hard magnets recycling technology on an industrial scale.</p></abstract>

Neodymium magnets currently dominate the magnet market due to their superior magnetic properties with maximum volume minimization. In this paper, the results of X-ray analysis for two types of magnetic powder obtained from the recovered magnets traditionally used in electric motors and hard disk have been presented. The NdFeB magnets are composed of 25-35 wt. % rare earth elements (RE) and the rest being transition metals (mainly Fe.). RE, other than Nd, such Dy, Pr, Tb and Gd or exogen elements, other than Fe, such as Al, Co, Ga, Nb, Si, Cu and Zr can also be present as minor admixtures. This paper brings an opportunity to introduce the hard magnets recycling technology on an industrial scale.

Technological and ecological safety in aspect of chemical properties of recycled neodymium magnets – electric motors and hard disk

Department of Production Engineering and Safety

Production Engineering Archives

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Neodymium magnets currently dominate the magnet market due to their superior magnetic properties with maximum volume minimization. In this paper, the results...

Technological and ecological safety in aspect of chemical properties of recycled neodymium magnets – electric motors and hard disk

Published Online: Jan 28, 2020

Page range: 36 - 39

Received: Sep 02, 2017

Accepted: Dec 20, 2017

DOI: https://doi.org/10.30657/pea.2017.17.08

Keywords
neodymium magnets, rare earth elements, chemical properties, hard disk, electric motors

© 2017 Katarzyna Kapustka et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Technological and ecological safety in aspect of chemical properties of recycled neodymium magnets – electric motors and hard disk

Published Online: Jan 28, 2020

Page range: 36 - 39

Received: Sep 02, 2017

Accepted: Dec 20, 2017

DOI: https://doi.org/10.30657/pea.2017.17.08

Keywordsneodymium magnets, rare earth elements, chemical properties, hard disk, electric motors

© 2017 Katarzyna Kapustka et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
neodymium magnets, rare earth elements, chemical properties, hard disk, electric motors