Rare earth is an important strategic resource and the core of resource competition among the world powers.Rare earth magnetic materials are the functional materials with the largest consumption of rare earth.Magnetic materials,espe-cially NdFeB permanent magnets,produce a large number of waste materials in the process of production,preparation and service.The production of NdFeB in China has increased year by year,forming a rare earth"urban mine".It is of great signif-icance to research the recycling technology of waste NdFeB permanent magnets for green and sustainable development of rare earth in China.This article summarizes various recycling methods of waste NdFeB permanent magnets,and reviews the re-search progress of rare earth magnetic waste material recycling technology in recent years.According to the development trend of environmental protection,resource saving and low cost,the recycling technology of waste rare earth metal is prospected.
rare earthrare earth recyclingwaste rare earth metalrare earth magnetic materialNdFeB
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