Rare earth solubilization from coal by-products

Kudos to Andrew for publishing his first paper for his dissertation!

Middleton, A.; Park, D.M.; Jiao, Y.; Hsu-Kim, H. (2020). Major element composition controls rare earth element solubility during leaching of coal fly ash and coal by-products. Intl. J. Coal Geology. https://doi.org/10.1016/j.coal.2020.103532