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Verfahren zum Recycling von seltenerdhaltigen Permanentmagneten

Processes for the recycling of rare earth permanent magnets
: Gauß, R.; Diehl, O.; Brouwer, E.; Buckow, A.; Güth, K.; Gutfleisch, O.


Chemie- Ingenieur- Technik 87 (2015), Nr.11, S.1477-1485
ISSN: 0009-286X
ISSN: 1522-2640
Fraunhofer ISC ()
Fraunhofer IWKS ()

Permanent magnets are crucial for numerous technologies. The development towards a growing use of renewable energies will further increase the demand for these kinds of materials. However, even high-grade, costly manufactured magnets are not recycled on an industrial scale today. The metallurgical and hydrogen-based recycling processes described here are based on a materials recycling approach, i.e., they aim at regaining the permanent magnet alloy. Both approaches are comparatively energy-efficient compared to traditional hydrometallurgical processes.