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2015
Journal Article
Title
Verfahren zum Recycling von seltenerdhaltigen Permanentmagneten
Other Title
Processes for the recycling of rare earth permanent magnets
Abstract
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.