This Phase 1 project will identify and characterize coal-related materials, and design and perform a techno-economic analysis for a self-contained, modular, and portable continuous ion exchange/continuous ion chromatography (CIX/CIC) pilot plant capable of processing and purifying rare earth elements (REEs). The process will combine chemical processing with physical beneficiation processes for providing a concentrated REEs leach liquor stream derived from clay-rich, co-produced coal materials such as those associated with overburden, and clay layers under or within a coal stream and cleaning plant refuse. After concentration, the REEs will be separated and purified into their individual elements using CIX/CIC techniques. This project will also determine the economic viability of mining and processing REEs associated with Appalachian coal deposits. If successful, this Phase 1 project may continue into the next stage of development which includes installation, field-testing, and evaluation of the REE recovery technology.