Knowledge Management System Of Institute of process engineering,CAS
| Speciation of rare earth elements in acid mine drainage precipitates by sequential extraction | |
| Wang, Yan1,2; Noble, Aaron2; Vass, Christopher3; Ziemkiewicz, Paul3 | |
| 2021-07-01 | |
| Source Publication | MINERALS ENGINEERING
 |
| ISSN | 0892-6875 |
| Volume | 168Pages:11 |
| Abstract | Recent efforts have shown that acid mine drainage precipitates (AMDp) may be a promising source of rare earth elements and critical materials (REE/CM). To better understand this resource, several particle characterization studies were conducted on AMDp samples from three AMD treatment sites in Northern and Central Appalachia. This work included the determination of particle size, size distribution, morphology, mineralogy, chemical speciation, and rare earth content. While the particle characteristics and mineralogy varied considerably from site to site, sequential extraction tests showed that the largest portion of REEs (45% to 75%) were found in soluble phases bound to Fe-Mn oxides. Carbonates (5% to 16%) and insoluble residues (4% to 24%) were also found to be significant in some samples, suggesting that different AMD chemistry and AMD treatment approaches can lead to substantial variation in the deportment of REEs to the various chemical phases. Altogether, the results suggest that chemical extraction of REEs from AMDp can be achieved under mild conditions with high recovery values; however, the significant site-by-site variation will necessitate detailed testing of individual samples to determine the overall economic viability. |
| Keyword | Acid mine drainage precipitates (AMDp) Rare earth elements (REEs) Sequential extraction Chemical speciation Mineralogy |
| DOI | 10.1016/j.mineng.2021.106827 |
| Language | 英语 |
| WOS Keyword | FLY-ASH ; TRACE-ELEMENTS ; GEOCHEMISTRY ; COPPER ; COALS ; SOILS ; REE ; MOBILIZATION ; ENRICHMENTS ; GROUNDWATER |
| Funding Project | U.S. Department of Energy[DE-FE0026927] |
| WOS Research Area | Engineering ; Mineralogy ; Mining & Mineral Processing |
| WOS Subject | Engineering, Chemical ; Mineralogy ; Mining & Mineral Processing |
| Funding Organization | U.S. Department of Energy |
| WOS ID | WOS:000663336600014 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/49233 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Yan |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Virginia Tech, Dept Min & Minerals Engn, 400 Stanger St, Blacksburg, VA 24061 USA 3.West Virginia Univ, West Virginia Water Res Inst, 1272 Evansdale Dr, Morgantown, WV 26506 USA |
| Recommended Citation GB/T 7714 | Wang, Yan,Noble, Aaron,Vass, Christopher,et al. Speciation of rare earth elements in acid mine drainage precipitates by sequential extraction[J]. MINERALS ENGINEERING,2021,168:11. |
| APA | Wang, Yan,Noble, Aaron,Vass, Christopher,&Ziemkiewicz, Paul.(2021).Speciation of rare earth elements in acid mine drainage precipitates by sequential extraction.MINERALS ENGINEERING,168,11. |
| MLA | Wang, Yan,et al."Speciation of rare earth elements in acid mine drainage precipitates by sequential extraction".MINERALS ENGINEERING 168(2021):11. |
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