What is the current status of recycling and reuse technology of Special Shaped NdFeB Magnet?

With the improvement of environmental awareness and the increase in demand for resource reuse, the recycling and reuse technology of NdFeB magnets has become a hot topic of current research. Due to its strong magnetic properties and its importance in various high-end applications, recycling and reuse of Special Shaped NdFeB Magnet can not only save resources but also reduce environmental pollution. To achieve this goal, the industry has developed a variety of recycling methods, striving to ensure the environmental protection and economic efficiency of the recycling process while ensuring efficient recycling.
At present, the recycling of NdFeB magnets mainly relies on two methods: physical recycling and chemical recycling. Physical recycling is to mechanically crush, screen and separate the discarded NdFeB magnets to extract valuable rare earth metals from them. This method is simple to operate and low in cost, and is suitable for situations where the rare earth metal content in the waste magnets is high. However, physical recycling has limited separation effect on waste magnets of different materials and shapes, and may cause a certain degree of resource loss.
Chemical recycling extracts rare earth metals such as neodymium, praseodymium, and samarium from magnets through chemical dissolution, acid leaching, or other chemical reactions. Compared with physical recycling, chemical recycling can more efficiently recover rare earth metals from NdFeB magnets, especially for waste magnets with low metal content. However, chemical recycling usually requires the use of certain harmful chemicals, so pollution emissions in the process must be strictly controlled to ensure compliance with environmental protection requirements.
In recent years, technological innovations for the recycling of NdFeB magnets have continued, and new recycling technologies have continued to emerge. For example, hydrometallurgical technology has made significant progress in the recycling of NdFeB magnets. This method dissolves the rare earth metals in NdFeB using specific solvents and separates them from other metals, thereby achieving efficient recovery. Hydrometallurgical technology has a high recovery rate and low environmental pollution, but its operation process is complex and costly.
In addition to traditional physical and chemical recycling technologies, biological recovery technology has gradually entered the research field of vision. By using specific microorganisms or plants to extract rare earth metals, biological recovery is not only environmentally friendly but also highly selective. Although this method is still in the experimental stage, it has broad prospects and is expected to become an important way to recycle NdFeB magnets in the future.
At present, there are multiple recycling projects and facilities being promoted around the world. Especially in the context of scarce rare earth resources, the recycling technology of NdFeB magnets has gradually become part of the sustainable development strategy. With the continuous advancement of recycling technology, the cost of recycling in the future will be further reduced and the recycling rate will continue to increase, which will have a positive impact on the industry chain and environmental protection of NdFeB magnets.