Final Technical Report - Rare Earth Extraction and Concentration at Pilot-Scale from North Dakota Coal-Related Feedstocks
- Univ. of North Dakota, Grand Forks, ND (United States)
- Microbeam Technologies, Inc., Grand Forks, ND (United States)
- Rare Earth Salts LLC., Beatrice, NE (United States)
- Barr Engineering Company, Minneapolis, MN (United States)
- Barr Engineering Co.
The objectives of this project were to design, construct, commission, and operate a pilot-scale system utilizing UND's REE extraction technology from lignite, and complete saleability and economic evaluations of products. The process includes a dilute-acid extraction process from low-rank-coals, followed by selective precipitations and further processing to produce mixed rare earth oxide materials. The pilot was successfully constructed to a 1,000 lb/hr nameplate capacity and tested with over 100 tons of >300-ppm lignite-based feedstocks and produced saleable-quality products during operation. The team successfully attained a TRL status of 6 with the completion and testing of the pilot system, and the technology is poised for demonstration at a commercial scale.
- Research Organization:
- Univ. of North Dakota, Grand Forks, ND (United States)
- Sponsoring Organization:
- USDOE Office of Fossil Energy and Carbon Management (FECM), Office of Resource Sustainability
- DOE Contract Number:
- FE0031835
- OSTI ID:
- 2563526
- Report Number(s):
- DOE-UND--31835-01
- Country of Publication:
- United States
- Language:
- English
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