An NETL-supported project at West Virginia University (WVU) to extract economically and strategically important rare earth elements (REEs) from Appalachian coal resources reached new milestones, such as partial automation of the recovery process, and exceeded its original REE purity and recovery goals.
Researchers at WVU’s Water Research Institute used the on-campus Rare Earth Extraction Facility (REEF), which was designed, constructed and commissioned in 2018 as a part of this cooperative agreement, to demonstrate that acid mine drainage (AMD) precipitates from mining sites could be transformed into valuable revenue streams for local communities and businesses using the method of acid leaching solvent extraction (ALSX).
“The research conducted at WVU continues to be a source of encouragement,” said Jessica Mullen, NETL federal project manager. “While there is still more work to be done, these researchers have demonstrated that Appalachia can be an attractive source of domestic REE production. If optimized, we may one day see AMD as an opportunity for economic growth instead of just a waste product, all while cleaning up the environment in the process.”