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Bridging Hydrometallurgy and Biochemistry: A Protein-Based Process for Recovery and Separation of Rare Earth Elements
[Image: see text] The extraction and subsequent separation of individual rare earth elements (REEs) from REE-bearing feedstocks represent a challenging yet essential task for the growth and sustainability of renewable energy technologies. As an important step toward overcoming the technical and envi...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8614107/ https://www.ncbi.nlm.nih.gov/pubmed/34841054 http://dx.doi.org/10.1021/acscentsci.1c00724 |
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author | Dong, Ziye Mattocks, Joseph A. Deblonde, Gauthier J.-P. Hu, Dehong Jiao, Yongqin Cotruvo, Joseph A. Park, Dan M. |
author_facet | Dong, Ziye Mattocks, Joseph A. Deblonde, Gauthier J.-P. Hu, Dehong Jiao, Yongqin Cotruvo, Joseph A. Park, Dan M. |
author_sort | Dong, Ziye |
collection | PubMed |
description | [Image: see text] The extraction and subsequent separation of individual rare earth elements (REEs) from REE-bearing feedstocks represent a challenging yet essential task for the growth and sustainability of renewable energy technologies. As an important step toward overcoming the technical and environmental limitations of current REE processing methods, we demonstrate a biobased, all-aqueous REE extraction and separation scheme using the REE-selective lanmodulin protein. Lanmodulin was conjugated onto porous support materials using thiol-maleimide chemistry to enable tandem REE purification and separation under flow-through conditions. Immobilized lanmodulin maintains the attractive properties of the soluble protein, including remarkable REE selectivity, the ability to bind REEs at low pH, and high stability over numerous low-pH adsorption/desorption cycles. We further demonstrate the ability of immobilized lanmodulin to achieve high-purity separation of the clean-energy-critical REE pair Nd/Dy and to transform a low-grade leachate (0.043 mol % REEs) into separate heavy and light REE fractions (88 mol % purity of total REEs) in a single column run while using ∼90% of the column capacity. This ability to achieve, for the first time, tandem extraction and grouped separation of REEs from very complex aqueous feedstock solutions without requiring organic solvents establishes this lanmodulin-based approach as an important advance for sustainable hydrometallurgy. |
format | Online Article Text |
id | pubmed-8614107 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-86141072021-11-26 Bridging Hydrometallurgy and Biochemistry: A Protein-Based Process for Recovery and Separation of Rare Earth Elements Dong, Ziye Mattocks, Joseph A. Deblonde, Gauthier J.-P. Hu, Dehong Jiao, Yongqin Cotruvo, Joseph A. Park, Dan M. ACS Cent Sci [Image: see text] The extraction and subsequent separation of individual rare earth elements (REEs) from REE-bearing feedstocks represent a challenging yet essential task for the growth and sustainability of renewable energy technologies. As an important step toward overcoming the technical and environmental limitations of current REE processing methods, we demonstrate a biobased, all-aqueous REE extraction and separation scheme using the REE-selective lanmodulin protein. Lanmodulin was conjugated onto porous support materials using thiol-maleimide chemistry to enable tandem REE purification and separation under flow-through conditions. Immobilized lanmodulin maintains the attractive properties of the soluble protein, including remarkable REE selectivity, the ability to bind REEs at low pH, and high stability over numerous low-pH adsorption/desorption cycles. We further demonstrate the ability of immobilized lanmodulin to achieve high-purity separation of the clean-energy-critical REE pair Nd/Dy and to transform a low-grade leachate (0.043 mol % REEs) into separate heavy and light REE fractions (88 mol % purity of total REEs) in a single column run while using ∼90% of the column capacity. This ability to achieve, for the first time, tandem extraction and grouped separation of REEs from very complex aqueous feedstock solutions without requiring organic solvents establishes this lanmodulin-based approach as an important advance for sustainable hydrometallurgy. American Chemical Society 2021-10-08 2021-11-24 /pmc/articles/PMC8614107/ /pubmed/34841054 http://dx.doi.org/10.1021/acscentsci.1c00724 Text en © 2021 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Dong, Ziye Mattocks, Joseph A. Deblonde, Gauthier J.-P. Hu, Dehong Jiao, Yongqin Cotruvo, Joseph A. Park, Dan M. Bridging Hydrometallurgy and Biochemistry: A Protein-Based Process for Recovery and Separation of Rare Earth Elements |
title | Bridging Hydrometallurgy and Biochemistry: A Protein-Based
Process for Recovery and Separation of Rare Earth Elements |
title_full | Bridging Hydrometallurgy and Biochemistry: A Protein-Based
Process for Recovery and Separation of Rare Earth Elements |
title_fullStr | Bridging Hydrometallurgy and Biochemistry: A Protein-Based
Process for Recovery and Separation of Rare Earth Elements |
title_full_unstemmed | Bridging Hydrometallurgy and Biochemistry: A Protein-Based
Process for Recovery and Separation of Rare Earth Elements |
title_short | Bridging Hydrometallurgy and Biochemistry: A Protein-Based
Process for Recovery and Separation of Rare Earth Elements |
title_sort | bridging hydrometallurgy and biochemistry: a protein-based
process for recovery and separation of rare earth elements |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8614107/ https://www.ncbi.nlm.nih.gov/pubmed/34841054 http://dx.doi.org/10.1021/acscentsci.1c00724 |
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