Recovery of Rare Earth Element from Acid Mine Drainage Using Organo-Phosphorus Extractants and Ionic Liquids
| dc.contributor.author | Larochelle, Tommee | en |
| dc.contributor.author | Noble, Aaron | en |
| dc.contributor.author | Strickland, Kris | en |
| dc.contributor.author | Ahn, Allie | en |
| dc.contributor.author | Ziemkiewicz, Paul | en |
| dc.contributor.author | Constant, James | en |
| dc.contributor.author | Hoffman, David | en |
| dc.contributor.author | Glascock, Caitlin | en |
| dc.date.accessioned | 2022-10-26T19:28:00Z | en |
| dc.date.available | 2022-10-26T19:28:00Z | en |
| dc.date.issued | 2022-10-22 | en |
| dc.date.updated | 2022-10-26T11:07:52Z | en |
| dc.description.abstract | Acid mine drainage is a legacy environmental issue and one of the largest pollutants in many mining districts throughout the world. In prior work, the authors have developed a process for the recovery of critical materials, including the rare earth elements, from acid mine drainage using a preconcentration step followed by solvent extraction as a concentration and purification technology. As part of the downstream technology development efforts, we have synthesized a suite of ionic liquid extractants that facilitate greater separation factors leading to lower capital costs and reduced environmental impacts. This article provides a comparison of the conventional extractants D2EHPA, EHEHPA and C572 with their respective ionic liquids [c101][D2EHP,c101][EHEHP] and [c101][C572] for the recovery of rare earth elements from acid mine drainage. In the study, laboratory-scale, multi-contact solvent extraction tests were conducted at high and low extractant/dosages. The results show that the ionic liquids varied in performance, with [c101][D2EHP] and [c101][EHEHP] performing poorer than their conventional counterparts and [c101][c572] performing better. Recommendations for further study on [c101][c572] include stripping tests, continuous pilot testing, and techno-economic analysis. | en |
| dc.description.version | Published version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Larochelle, T.; Noble, A.; Strickland, K.; Ahn, A.; Ziemkiewicz, P.; Constant, J.; Hoffman, D.; Glascock, C. Recovery of Rare Earth Element from Acid Mine Drainage Using Organo-Phosphorus Extractants and Ionic Liquids. Minerals 2022, 12, 1337. | en |
| dc.identifier.doi | https://doi.org/10.3390/min12111337 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/112293 | en |
| dc.language.iso | en | en |
| dc.publisher | MDPI | en |
| dc.rights | Creative Commons Attribution 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en |
| dc.subject | rare earth elements | en |
| dc.subject | solvent extraction | en |
| dc.subject | ionic liquids | en |
| dc.title | Recovery of Rare Earth Element from Acid Mine Drainage Using Organo-Phosphorus Extractants and Ionic Liquids | en |
| dc.title.serial | Minerals | en |
| dc.type | Article - Refereed | en |
| dc.type.dcmitype | Text | en |