Gauß, R.R.GaußDiehl, O.O.DiehlBrouwer, E.E.BrouwerBuckow, A.A.BuckowGüth, K.K.GüthGutfleisch, O.O.Gutfleisch2022-03-052022-03-052015https://publica.fraunhofer.de/handle/publica/24278710.1002/cite.201500061Permanent 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.de660journal article