CAS OpenIR
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 PublicationMINERALS ENGINEERING
ISSN0892-6875
Volume168Pages:11
AbstractRecent 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.
KeywordAcid mine drainage precipitates (AMDp) Rare earth elements (REEs) Sequential extraction Chemical speciation Mineralogy
DOI10.1016/j.mineng.2021.106827
Language英语
WOS KeywordFLY-ASH ; TRACE-ELEMENTS ; GEOCHEMISTRY ; COPPER ; COALS ; SOILS ; REE ; MOBILIZATION ; ENRICHMENTS ; GROUNDWATER
Funding ProjectU.S. Department of Energy[DE-FE0026927]
WOS Research AreaEngineering ; Mineralogy ; Mining & Mineral Processing
WOS SubjectEngineering, Chemical ; Mineralogy ; Mining & Mineral Processing
Funding OrganizationU.S. Department of Energy
WOS IDWOS:000663336600014
PublisherPERGAMON-ELSEVIER SCIENCE LTD
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49233
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Yan
Affiliation1.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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