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Abundance and distribution pattern of rare earth elements and yttrium in vitrain band of high-rank coal from the Qinshui basin, northern China

文献类型：期刊论文

作者Wang, Xiaomei1; Wang, Xiaoming1; Pan, Zhejun2; Yin, Xuebo3; Chai, Pancun1; Pan, Sidong1; Yang, Qin4
刊名FUEL
出版日期2019-07-15
卷号248页码:93-103
关键词Coal Organic affinity HREY enrichment Vitrain band Sequential chemical extraction procedure Shanxi Formation
ISSN号0016-2361
DOI10.1016/j.fuel.2019.03.054
通讯作者Wang, Xiaomei(xiaomei_wang@cug.edu.cn)
英文摘要Vitrain bands are clean and contain less ash than the bulk coal. A comprehensive study on rare earth elements and yttrium (REY) in vitrain may provide insights into the REY affinity. In this study, abundance and distribution pattern of REY in bulk coal, vitrain band and HCl-HF demineralized vitrain band was investigated. The coal studied in the present work was low-ash (ash yields ranging from 4.13 to 12.86%, with 8.59% as the average), high-rank (anthracite to semi-anthracite, with volatile matter yields of 7.52-13.42%, 9.58% on average) coal of Permian Shanxi Formation, collected from the Sihe and Zhaozhuang mines, southern Qinshui Basin. The major minerals identified by powder XRD are illite and kaolinite, with small amount of ankerite, chlorite, calcite, siderite and pyrite. In comparison to the bulk coal, vitrain band displays a lower REY content and smaller compositional range. The bulk coal has N-, H- and L-type REY patterns based on Seredin-Dai's classification, while the REY distribution for the vitrain band is commonly characterized by an H-type pattern. Moreover, the La N /Lu N ratio in the vitrain band is usually lower than that in the bulk coal. This probably suggests that the organic component has a higher HREY association than LREY compared to the inorganic part. The limited impact of HCl-HF demineralization on content and distribution pattern of REY in vitrain band probably reflects the weak acid solubility of REY in the vitrain band. The sequential chemical extraction procedure reveals that the clays and the residual organics, which have a stronger association with LREY and HREY respectively, are the dominant carriers of total REY in the studied bulk coals.
资助项目National Natural Science Foundation of China[41572143] ; National Natural Science Foundation of China[41202114] ; National Natural Science Foundation of China[41101098] ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)[CUGL170220] ; Postdoctoral Science Foundation of China[2012M521499]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000463823500011
出版者ELSEVIER SCI LTD
源URL[http://ir.qdio.ac.cn/handle/337002/161110]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Wang, Xiaomei
作者单位1.China Univ Geosci, Minist Educ, Key Lab Tecton & Petr Resources, Wuhan 430074, Hubei, Peoples R China
2.CSIRO, Energy Business Unit, Private Bag 10, Clayton, Vic 3169, Australia
3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Shandong, Peoples R China
4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Hubei, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Xiaomei,Wang, Xiaoming,Pan, Zhejun,et al. Abundance and distribution pattern of rare earth elements and yttrium in vitrain band of high-rank coal from the Qinshui basin, northern China[J]. FUEL,2019,248:93-103.
APA Wang, Xiaomei.,Wang, Xiaoming.,Pan, Zhejun.,Yin, Xuebo.,Chai, Pancun.,...&Yang, Qin.(2019).Abundance and distribution pattern of rare earth elements and yttrium in vitrain band of high-rank coal from the Qinshui basin, northern China.FUEL,248,93-103.
MLA Wang, Xiaomei,et al."Abundance and distribution pattern of rare earth elements and yttrium in vitrain band of high-rank coal from the Qinshui basin, northern China".FUEL 248(2019):93-103.

入库方式： OAI收割

来源：海洋研究所

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