Recovery of Rare Earth Elements from Coal Fly Ash Leachates by Supported Liquid Membranes

摘要

1. Extraction from coal ash: Produces a highly heterogeneous liquid feedstock (impurities of Al, Si, Fe, Ca) 2. REE separations via supported liquid membranes: a. 10~3- to 10~5-fold selectivity for REEs b. preference for heavy REEs 3. Product purity depends on Fe, Al, Si, Ca in the feedstock.