complex rare earth mining process
UK Researchers First to Produce High Grade Rare Earths . Nov 20, 2017UK Researchers First to Produce High Grade Rare Earths From Coal By Whitney Harder Nov. 20, 2017 LEXINGTON, Ky. (Nov. 20, 2017) — University of Kentucky researchers have produced nearly pure rare earth concentrates from Kentucky coal using an environmentallyconscious and costeffective process, a groundbreaking ...