Rare earth element resource evaluation of coal byproducts: A case study from the Powder River Basin, Wyoming

D.A. Bagdonasa, A.J. Enriquez, Payne Fellow K.A. Coddington, D.C. Finnoff, J.F. McLaughlin, Payne Director M.D. Bazilian, E.H. Phillips, and T.L.McLing write about domestic Rare Earth Element sources and production are limited in the United States and currently rely on final processing overseas. Increasing demand and resource security domestically has led to significant investigation into rare earth element domestic resources. Much of this work focuses on unconventional potential ore stocks, including coal and coal byproducts. This investigation focuses on coal byproducts generated as ash from coal burning power stations. January 22, 2022.