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Process simulation: NdFeB permanent magnet production

Belo Fernandes, I.; Abadias Llamas, A.; Reuter, M.

This file contains an HSC model for NdFeB permanent magnet production, from ore processing to magnet production and two possible recycling routes. Data to build the model is found in key literature studies and from internal project data obtained by the various partners in four work packages (rare earth oxide separation, reduction and purification, alloy design, and powder magnet production).

The model was used to perform a resource efficiency, including exergy, and environmental impact (LCA) evaluation of the life cycle of a NdFeB permanent magnet produced from primary and secondary resources. This work has been submitted to JOM, in its special edition “Thermodynamic modeling of sustainable non-ferrous metals production” and has been accepted for publication with a digital object identifier (DOI): Detailed information about the literature sources used for developing the model can be found in the original research paper. The model was built using HSC Chemistry version 9.9 (

Keywords: NdFeB magnet production; resource efficiency; exergetic life cycle assessment; process simulation; geometallurgy; large systems design

  • Reseach data in the HZDR data repository RODARE
    Publication date: 2020-11-30
    DOI: 10.14278/rodare.616
    License: CC-BY-4.0
    Embargo: 31.07.2021


Publ.-Id: 31785

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