|About this Abstract
||Part C-3: Processing of Critical Metals
||W-21: Recovery of Rare Earth Elements from Coal Fly Ash and Recovery from PLS with IX
||Rory Cameron, Yves Thibault, Rolando Lastra, John Chaulk, Jean-Michel Bondy
|On-Site Speaker (Planned)
Rare earth elements (REEs) may be produced from secondary waste sources such as: uranium tailings, red mud, coal by-products, wastes from phosphate fertilizer production, and mineral by-products. Total REE concentrations within these secondary sources range from 100s to 1000s of ppm. This study examines the technical feasibility of recovering REEs from several Canadian coal fly ash samples. During the screening phase a number of different lixivants were screened for their ability to selectively leach REEs from the coal ash samples. A number of ion exchange (IX) resins were screened for REE recovery from the pregnant leaching solutions; several of which were selective for recovering REEs. The results of the leaching and metal recovery experiments will be summarized.
||Planned: At-meeting proceedings