Techno-economic Assessment for Integrating Biosorption into Rare Earth Recovery Process
- Purdue Univ., West Lafayette, IN (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Washington, Seattle, WA (United States)
- BioReactor Sciences, Lawrenceville, GA (United States)
- Navajo Transitional Energy Co., Farmington, NM (United States)
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Univ. of California, Berkeley, CA (United States)
© 2017 American Chemical Society. The current uncertainty in the global supply of rare earth elements (REEs) necessitates the development of novel extraction technologies that utilize a variety of REE source materials. Herein, we examined the techno-economic performance of integrating a biosorption approach into a large-scale process for producing salable total rare earth oxides (TREOs) from various feedstocks. An airlift bioreactor is proposed to carry out a biosorption process mediated by bioengineered rare earth-adsorbing bacteria. Techno-economic assessments were compared for three distinctive categories of REE feedstocks requiring different pre-processing steps. Key parameters identified that affect profitability include REE concentration, composition of the feedstock, and costs of feedstock pretreatment and waste management. Among the 11 specific feedstocks investigated, coal ash from the Appalachian Basin was projected to be the most profitable, largely due to its high-value REE content. Its cost breakdown includes pre-processing (leaching primarily, 77.1%), biosorption (19.4%), and oxalic acid precipitation and TREO roasting (3.5%). Surprisingly, biosorption from the high-grade Bull Hill REE ore is less profitable due to high material cost and low production revenue. Overall, our results confirmed that the application of biosorption to low-grade feedstocks for REE recovery is economically viable.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- AC07-05ID14517; AC02-05CH11231
- OSTI ID:
- 1398787
- Alternate ID(s):
- OSTI ID: 1479346
- Report Number(s):
- INL/JOU-17-42902
- Journal Information:
- ACS Sustainable Chemistry & Engineering, Vol. 5, Issue 11; ISSN 2168-0485
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
A strategy for the dissolution and separation of rare earth oxides by novel Brønsted acidic deep eutectic solvents
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journal | January 2019 |
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