Rare Earth Recycling and patents
China is the most attractive market for patents in the rare earth element (REE) recycling sector, with a significantly higher number of patent applications compared to other countries. This is what emerges from the study “Innovation in rare earths recycling: A quantitative and qualitative analysis of patent data”, which, through a meticulous analysis of patent data, offers an in-depth examination of innovation in the Rare Earth recycling sector.
Rare earth elements are fundamental for the digital transition and decarbonisation and are used in key technologies such as batteries, wind turbines and electronic devices. However, their extraction has a significant environmental impact and the supply chain is highly concentrated in just a few countries, making recycling a strategic solution to ensure sustainable access to these resources, reduce dependence on imports and limit the environmental impact of mining activities.
According to the study, published in Resources Policy and conducted by Area Science Park (Riccardo Priore and Marinella Favot) and the University of Milan-Bicocca (Marco Compagnoni), China remains the most dynamic market in the REE recycling sector and Chinese universities are the main players in innovation, demonstrating a strong commitment to research and development of new technologies for the recovery of these materials. However, the United States and Japan emerge as technological leaders, with patents that are more frequently mentioned and with greater international protection of their inventions, indicating more advanced and globally relevant technological innovation.
Europe, on the other hand, shows signs of stagnation in both the number and quality of patents. To bridge the gap with the main players in the sector, greater support for innovation is needed through public investment, business incentives and international collaborations. Moreover, revising policies for managing waste of electric and electronic equipment (WEEE), which is rich in critical raw materials, is crucial to making the circular economy more effective, by improving waste collection, enhancing recycling facilities and incentivising the use of secondary raw materials.
Riccardo Priore of the Patlib Centre, at Area Science Park, states that “This study represents an innovative type of support, through statistical analysis of patent documents, to various issues related to academic research activities. The study of innovation dynamics in the rare earth recycling sector provides an important starting point for developing more effective strategies in the REE recycling sector, with significant implications for the strategic autonomy of importing countries and for the future of the global circular economy.”
In a context of increasing demand for rare earth elements, recycling capacity will become increasingly crucial in reducing dependence on imports and mitigating the environmental impact of extraction. The results of the study suggest that, in order to remain competitive, Western countries should intensify their efforts in the recycling sector by promoting high-quality innovations and investing in the transition to a more sustainable economy.