Investigation of Rare Earth Element Extraction from North Dakota Coal-Related Feedstocks (Phase 2 Final Technical Report)
- Univ. of North Dakota, Grand Forks, ND (United States); University of North Dakota
- Univ. of North Dakota, Grand Forks, ND (United States)
- Microbeam Technologies, Inc., Grand Forks, ND (United States)
- Barr Engineering Co., Bismarck, ND (United States)
There were four major goals of this project: i) identify promising lignite or lignite-related feedstocks with total rare earth element content above 300 parts per million (ppm), ii) evaluate at the lab and bench-scale the extractability of the REE from the material, iii) determine the processing required to generate REE concentrates in excess of 2 wt%, iv) evaluate the economic feasibility of the process and develop a pathway for commercialization. In the Phase 1 study, work was primarily focused upon resource evaluation and labscale extractability of the REE, with a preliminary techno-economic assessment (TEA) conducted, whereas in the Phase 2 work, the extraction process was conducted at the bench scale, a method for cost-effective generation of higher purity mixed REE concentrates (up to 65%) was developed, and a refined TEA on the bench-scale data for a 1,000 kg coal processing test was conducted.
- Research Organization:
- Univ. of North Dakota, Grand Forks, ND (United States); Microbeam Technologies, Inc., Grand Forks, ND (United States); Barr Engineering Co., Bismarck, ND (United States)
- Sponsoring Organization:
- USDOE Office of Fossil Energy (FE)
- DOE Contract Number:
- FE0027006
- OSTI ID:
- 1785352
- Report Number(s):
- DUNS--10-228-0781-Rev.01
- Country of Publication:
- United States
- Language:
- English
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