EARTH

[21001-14-10] Climate Change Mitigation and Sustainability:
Global Trend of Critical Rare Earth Elements Recovery from Waste Sources

○JI Whan Ahn¹, Thriveni Thenepalli² (1. Korea Institute of Geosceinces and Mineral Resources(KIGAM), 2. Hanil Cement Co Ltd, Korea)

司会（Chairman）：Somsak Saisinchai （Chulalongkorn University）, Carlito Tabelin (Hokkaido University)

キーワード：global trend, critical elements, , recovery, , waste sources

#An increasing global demand for new products and emerging technologies that use rare earth elements (REEs) while global consumption of rare earth elements (REEs) has registered a steady and significant increase, their supply has drastically diminished. Rare earth elements (REEs) are found in most everyday applications because of their unique chemical and physical properties. Currently, critical rare metals are highly demanded and growing fast in green technologies. Recycling of mineral waste sources for the recovery of critical rare metals are one of the alternative resource for this critical rare metals crisis. Various mineral waste sources such as mine residues and coal ash are rich sources of rare earth elements. This paper mainly concerns the case studies of sustainable critical rare earth elements role in various fields and managing the supply chain risks of rare earths. This study sought to identify the information needed to determine whether there might be a potential for commercial extraction of the rare earth elements from waste sources.