Abstract
This review provides a comprehensive analysis of the rare earth elements (REEs) sector, encompassing their classification, properties, and global distribution, as well as their indispensable role in various high-tech, renewable energy, and defense applications. The significant environmental impact of REE mining and processing, characterized by ecological degradation and health risks, is examined alongside the economic and geopolitical challenges arising from the concentrated supply chain and market volatility. The review emphasizes the ongoing efforts and research initiatives aimed at developing sustainable extraction methods, promoting recycling from electronic waste, and exploring alternative materials. Despite these efforts, the effectiveness and scalability of recycling technologies, as well as the feasibility of substitute materials, remain limited, highlighting the need for further research. The review also delves into the impact of international and national policies on the REE industry, underlining the critical role of regulatory frameworks in shaping sustainable practices. Conclusively, this review not only provides insights into the current state of the REE sector but also identifies key areas for future research and development, crucial for the sustainable management and utilization of these vital resources in various industries.
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