Economic and Environmental Geology

Fig. 10.

Download original image
Fig. 10. REE extraction processing from coal and coal byproducts. Pre-acid leaching calcination improved recovery of rare earth elements by increasing interior surface area of the coal particles. University of Kentucky is producing REO of 98% purity with this processing methods (modified after U.S. DOE and NETL roadmap).
Econ. Environ. Geol. 2022;55:241-59
© 2022 Econ. Environ. Geol.