In his long career at NETL, McMahan Gray has experienced more than a few successes. For example, the award-winning research chemist has made valuable contributions to remove carbon from industrial emissions and extract rare earth elements (REEs) from coal byproducts, wastewater and even acid mine drainage. Another ground-breaking contribution may be just around the corner. As part of an ongoing research effort, Gray serves on an NETL team that’s writing a new chapter in the long productive history of coal that may revolutionize how the mineral is used in the future.

In an NETL-supported project with Virginia Tech, researchers developed a safe and  efficient processing technology that can extract and concentrate rare earth elements (REE) from coal refuse material already found throughout the Appalachian region, namely in shales and clays. The new process opens the door to future commercialization, as it decreases the size and cost of needed systems.

With the completion of a recent field test at Pittsburgh Botanic Garden, NETL researchers demonstrated that the Lab’s basic immobilized amine sorbent (BIAS) process could successfully extract rare earth elements (REEs) from acid mine drainage, potentially providing a reliable domestic supply of critical materials needed to produce wind turbines, electric and hybrid electric vehicles, computer components, medical devices, smart phones and other valuable products.

Mary Anne Alvin, an NETL Technology Manager who has earned multiple awards and holds numerous scientific patents, will serve as co-editor of a new book on rare earth elements (REEs) that’s expected to provide the first comprehensive review of the technologies used to extract and process REEs for the manufacturing of high-tech products.

In an NETL-supported collaboration with Wayne State University (WSU), researchers used a newly developed sorbent and a process previously developed for nuclear applications to produce an economically viable concentration of rare earth elements (REEs) from domestic coal fly ash, signaling an important step toward commercialization.

An NETL collaboration with the University of Wyoming to develop technologies and methods for extracting rare earth elements (REEs) from coal ash is taking a major step forward with a recently awarded grant from the U.S. Department of Energy’s Technology Commercialization Fund.

The U.S. Department of Energy (DOE) and NETL intends to make approximately $122 million available, through a competitive process, to establish coal products innovation centers. The innovation centers will focus on manufacturing value-added, carbon-based products from coal, as well developing new methods to extract and process rare earth elements and critical minerals from coal. 

An NETL-supported collaboration demonstrated favorable results that showed potential toward developing an environmentally benign and economically sustainable process for generating rare earth element (REE) products from domestic coal ash sources, marking a step forward in enabling a domestic supply of these critical materials.

The U.S. Department of Energy (DOE) prioritized the creation of a domestic supply of rare earth elements (REEs), and one of NETL’s supported projects that may provide these vital resources using the nation’s abundant coal supplies has demonstrated favorable results.

The U.S. Department of Energy’s (DOE) Office of Fossil Energy (FE) and NETL have issued a request for proposal (RFP) as an unrestricted, full, and open competition for the conceptual design of a system to produce 1–3 tonnes per day of mixed rare earth oxides or rare earth salts from domestic coal and coal by-product feedstocks. The proposal also includes an option to conduct a feasibility study sufficient to support an AACE Class 4 cost estimate to assess the technical and economic feasibility of the approach identified in the conceptual design.