Speciation of rare earth elements in acid mine drainage precipitates by sequential extraction
文献类型：期刊论文
| 作者 | Wang, Yan2,3; Noble, Aaron3; Vass, Christopher1; Ziemkiewicz, Paul1 |
| 刊名 | MINERALS ENGINEERING
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 168页码:11 |
| ISSN号 | 0892-6875 |
| 关键词 | Acid mine drainage precipitates (AMDp) Rare earth elements (REEs) Sequential extraction Chemical speciation Mineralogy |
| DOI | 10.1016/j.mineng.2021.106827 |
| 英文摘要 | 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. |
| WOS关键词 | FLY-ASH ; TRACE-ELEMENTS ; GEOCHEMISTRY ; COPPER ; COALS ; SOILS ; REE ; MOBILIZATION ; ENRICHMENTS ; GROUNDWATER |
| 资助项目 | U.S. Department of Energy[DE-FE0026927] |
| WOS研究方向 | Engineering ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000663336600014 |
| 资助机构 | U.S. Department of Energy |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/49232]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Yan |
| 作者单位 | 1.West Virginia Univ, West Virginia Water Res Inst, 1272 Evansdale Dr, Morgantown, WV 26506 USA 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 3.Virginia Tech, Dept Min & Minerals Engn, 400 Stanger St, Blacksburg, VA 24061 USA |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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