Beneficiation of Bastnaesite Ore with New Flotation Collector Ligands

Everly, D.; Anderson, Corby; Jansone-Popova, Santa; Bryantsev, Vyacheslav; Moyer, Bruce A.

doi:10.31031/AMMS.2021.07.000657

Title: Beneficiation of Bastnaesite Ore with New Flotation Collector Ligands

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Abstract

Interest in Rare Earth Elements (REEs) has increased due to their distinct properties and new applications. China currently has a monopoly on rare earth production due to the lack of an economically viable process used outside of China. Bastnaesite, a rare earth fluorocarbonate, is one of the most common minerals containing REEs, which is mostly comprised of cerium and other light REEs. The objective of this research is to find a novel collector for the beneficiation of bastnaesite through froth flotation experiments to increase the grade and recovery of rare earth oxides while rejecting the major gangue minerals. Microflotation and rougher bench flotation studies were evaluated to find optimal collector(s) from 19 possible candidates. Collectors 2, 5, and 8 were the top performing collectors chosen from microflotation experiments. A design of experiment matrix was set up to evaluate the variables, variable interactions, and provide a reference matrix for future optimization studies. Collector 2 was assessed to be the optimal collector. A rougher flotation experiment produced a rare earth oxide grade and recovery of 41% and 78%, respectively with a 91.5% rejection of calcite. Collector 8 and 14 also showed promising results to replace fatty acid. As such, this patent pendingmore »« less

Authors:

Everly, D. ^[1]; Anderson, Corby ^[1];

^[2];

^[2]

Colorado School of Mines, Golden, CO (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Mon Aug 02 00:00:00 EDT 2021

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office

OSTI Identifier:: 1840162

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Aspects in mining & mineral science

Additional Journal Information:: Journal Volume: 7; Journal Issue: 2; Related Information: https://crimsonpublishers.com/amms/fulltext/AMMS.000657.php; Journal ID: ISSN 2578-0255

Publisher:: Crimson Publishers

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Bastnaesite; Flotation; Microflotation; Rare earth elements

Citation Formats


                    Everly, D., Anderson, Corby, Jansone-Popova, Santa, Bryantsev, Vyacheslav, and Moyer, Bruce A. Beneficiation of Bastnaesite Ore with New Flotation Collector Ligands.  United States: N. p., 2021. 
Web.  doi:10.31031/AMMS.2021.07.000657.

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                    Everly, D., Anderson, Corby, Jansone-Popova, Santa, Bryantsev, Vyacheslav, & Moyer, Bruce A. Beneficiation of Bastnaesite Ore with New Flotation Collector Ligands.  United States.  https://doi.org/10.31031/AMMS.2021.07.000657

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                    Everly, D., Anderson, Corby, Jansone-Popova, Santa, Bryantsev, Vyacheslav, and Moyer, Bruce A. Mon .  
"Beneficiation of Bastnaesite Ore with New Flotation Collector Ligands".  United States.  https://doi.org/10.31031/AMMS.2021.07.000657.  https://www.osti.gov/servlets/purl/1840162.

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@article{osti_1840162,

  title        = {Beneficiation of Bastnaesite Ore with New Flotation Collector Ligands},

  author       = {Everly, D. and Anderson, Corby and Jansone-Popova, Santa and Bryantsev, Vyacheslav and Moyer, Bruce A.},

  abstractNote = {Interest in Rare Earth Elements (REEs) has increased due to their distinct properties and new applications. China currently has a monopoly on rare earth production due to the lack of an economically viable process used outside of China. Bastnaesite, a rare earth fluorocarbonate, is one of the most common minerals containing REEs, which is mostly comprised of cerium and other light REEs. The objective of this research is to find a novel collector for the beneficiation of bastnaesite through froth flotation experiments to increase the grade and recovery of rare earth oxides while rejecting the major gangue minerals. Microflotation and rougher bench flotation studies were evaluated to find optimal collector(s) from 19 possible candidates. Collectors 2, 5, and 8 were the top performing collectors chosen from microflotation experiments. A design of experiment matrix was set up to evaluate the variables, variable interactions, and provide a reference matrix for future optimization studies. Collector 2 was assessed to be the optimal collector. A rougher flotation experiment produced a rare earth oxide grade and recovery of 41% and 78%, respectively with a 91.5% rejection of calcite. Collector 8 and 14 also showed promising results to replace fatty acid. As such, this patent pending technology can serve to provide a pathway for efficient domestic REE production.},

  doi          = {10.31031/AMMS.2021.07.000657},

  journal      = {Aspects in mining & mineral science},

  number       = 2,

  volume       = 7,

  place        = {United States},

  year         = {Mon Aug 02 00:00:00 EDT 2021},

  month        = {Mon Aug 02 00:00:00 EDT 2021}

}

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