American Rare Earths Reports on two Independent Studies on Metallurgical work on REE Extraction
May 07, 2024 at 12:13 pm EDT
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American Rare Earths Limited CEO Donald Swartz joined Steve Darling from Proactive to announce the results of a metallurgical study on the leaching extraction of Rare Earth Elements from Halleck Creek ore using low-temperature, direct acid leaching. The study, conducted by researchers at the Department of Mining and Minerals Engineering at Virginia Tech, was part of a three-year research contract awarded by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy to Phinix, LLC, with American Rare Earth and Virginia Tech as team members.
Swartz highlighted that the positive results from the metallurgical study further confirm the findings of previous testwork carried out by Wood PLC. Independent technical studies, recently published and peer-reviewed, also underscore the economic potential of Halleck Creek ore. The studies revealed that 80% of REEs can be extracted using low-temperature, direct acid leaching, with fast leaching kinetics attributed to the ore's metamict allanite structure. Notably, 65% of REEs were extracted within the first 10 minutes of leaching, showcasing the ore's favorable characteristics compared to refractory ores like monazite or bastnaesite.
Furthermore, the Green and Smart Mining Engineering study demonstrated that Halleck Creek ore's high-grade rare-earth enrichment highlights its economic potential. Density and magnetic separation techniques have proven effective in separating and concentrating the rare earth elements, further enhancing the economic viability of the project.
These findings underscore the significant progress made by American Rare Earths Limited in advancing the development of the Halleck Creek project. With promising results from metallurgical studies and ongoing research efforts, the company is well-positioned to capitalize on the economic potential of Halleck Creek ore and contribute to the domestic supply chain of rare earth elements.
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American Rare Earths Limited is an Australia-based mineral exploration company. The Company owns the Halleck Creek and La Paz rare earth deposits. Its flagship project is Halleck Creek, located in the Central Laramie Mountains, approximately 70 kilometers (km) northeast of Laramie, and 30 km southwest of Wheatland, Wyoming and covers over 3304 hectares. Through its wholly owned subsidiary Wyoming Rare (USA) Inc., it controls approximately 367 unpatented lode mining claims and four Wyoming State Mineral Leases. Its 100% owned La Paz Rare Earth Project, which is located in La Paz County, Arizona, approximately 170 kilometers northwest of Phoenix. The La Paz Project covers over 2779 hectares. Its projects also include Beaver Creek and Searchlight properties. It is also focused on evaluating other exploration opportunities and is collaborating with United States Government-supported research and development (R&D) to develop processing and separation techniques of rare earth elements.