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

Wang, Xiaomei; Wang, Xiaoming; Pan, Zhejun; Yin, Xue‐Bo; Chai, Pancun; Pan, Sidong; Yang, Qing

doi:10.1016/j.fuel.2019.03.054

Cited by 17 publications

(3 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, REE in a Pennsylvanian anthracite were also associated with clay minerals . Sequential leaching experiments of anthracite from the Qinshui Basin, China indicated that REE were mainly bound to clay minerals and residual organics . Geochemical and statistical analysis of a compiled global coal ash data set showed that REE in coal ashes are linked to elements typically associated with detrital and clay minerals, including Al, Ti, Th, and Zr, indicating clays may be the main source of REE in many coal deposits .…”

Section: Resultsmentioning

confidence: 99%

“…100 Sequential leaching experiments of anthracite from the Qinshui Basin, China indicated that REE were mainly bound to clay minerals and residual organics. 101 Geochemical and statistical analysis of a compiled global coal ash data set showed that REE in coal ashes are linked to elements typically associated with detrital and clay minerals, including Al, Ti, Th, and Zr, indicating clays may be the main source of REE in many coal deposits. 102 Some of the highest concentrations of REE in coal deposits globally, such as the Fire Clay coals of the Appalachian Basin, are related to tonsteins: clay rich volcanic layers.…”

Section: Role Of Clays In Alternative Sources Of Reementioning

confidence: 99%

See 1 more Smart Citation

Rare Earth Element Adsorption to Clay Minerals: Mechanistic Insights and Implications for Recovery from Secondary Sources

Bishop,

Alam,

Flynn

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

The energy transition will have significant mineral demands and there is growing interest in recovering critical metals, including rare earth elements (REE), from secondary sources in aqueous and sedimentary environments. However, the role of clays in REE transport and deposition in these settings remains understudied. This work investigated REE adsorption to the clay minerals illite and kaolinite through pH adsorption experiments and extended X-ray absorption fine structure (EXAFS). Clay type, pH, and ionic strength (IS) affected adsorption, with decreased adsorption under acidic pH and elevated IS. Illite had a higher adsorption capacity than kaolinite; however, >95% adsorption was achieved at pH ∼7.5 regardless of IS or clay. These results were used to develop a surface complexation model with the derived binding constants used to predict REE speciation in the presence of competing sorbents. This demonstrated that clays become increasingly important as pH increases, and EXAFS modeling showed that REE can exist as both inner-and outer-sphere complexes. Together, this indicated that clays can be an important control on the transport and enrichment of REE in sedimentary systems. These findings can be applied to identify settings to target for resource extraction or to predict REE transport and fate as a contaminant.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Role Of Clays In Alternative Sources Of Reementioning

confidence: 99%

Rare Earth Element Adsorption to Clay Minerals: Mechanistic Insights and Implications for Recovery from Secondary Sources

Bishop,

Alam,

Flynn

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…In terms of the research on critical metal elements, Zhao et al [19,20] systematically studied the distribution and enrichment origin of critical metals such as Li, and rare earth elements in the coal from Jincheng mining area in the southeastern Qinshui coalfield. Wang et al [21] studied the distribution characteristics of rare earth elements in coal from the Qinshui coalfield. Hou et al reported the latest data on the petrology, mineralogy, and coal geochemistry of the No.…”

Section: Introductionmentioning

confidence: 99%

Geochemical Characteristics of Critical Metal Elements in the No. 9 Coal Seam from the Xinyuan Mine, Northern Qinshui Coalfield, Shanxi Province, China

Zhang

Wang

et al. 2023

Minerals

View full text Add to dashboard Cite

As one of the main fossil fuels globally, coal can be enriched with a variety of critical metal elements in specific geological conditions. This paper investigates the mineral compositions and concentrations of major and minor element oxides and trace elements in the No. 9 coal from the Xinyuan mine of the northern Qinshui coalfield, China, and discusses the modes of occurrence and enrichment mechanisms of critical metal elements such as Li, Ga, Th and REY. The mineral compositions of the No. 9 coal are primarily represented by clay minerals and quartz, with a small amount of calcite, siderite, anatase, etc. The major element oxides in the No. 9 coal are dominated by SiO2 and Al2O3. Compared with world hard coal, the No. 9 coal of the Xinyuan mine is rich in Li (CC = 8.00) and Th, slightly enriched with Pb, Sc, Ga, Y, La, Ce, Tb, Dy, Er, Yb and Hg, and depleted in Mn, Co, Ni, Rb, Cs and Tl. The critical metal elements such as Li, Ga, Th and REY that enriched No. 9 coal mainly occur in aluminum silicates. The genetic type of the critical metal elements in the No. 9 coal from the Xinyuan mine is source rock-controlled type. The critical metal minerals and solutions from the source area were transported to the study area by the action of water. Due to the change of swamp water conditions, the critical metal elements were combined with clay minerals and enriched the coal.

show abstract

Utilization of Circulating Fluidized Bed Combustion Fly Ash for Simultaneous Recovery of Rare Earth Elements and CO2 Capture

Lai

Thriveni

Ahn

2021

Clean Coal Technologies

View full text Add to dashboard Cite

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

Cited by 17 publications

References 65 publications

Rare Earth Element Adsorption to Clay Minerals: Mechanistic Insights and Implications for Recovery from Secondary Sources

Rare Earth Element Adsorption to Clay Minerals: Mechanistic Insights and Implications for Recovery from Secondary Sources

Geochemical Characteristics of Critical Metal Elements in the No. 9 Coal Seam from the Xinyuan Mine, Northern Qinshui Coalfield, Shanxi Province, China

Utilization of Circulating Fluidized Bed Combustion Fly Ash for Simultaneous Recovery of Rare Earth Elements and CO2 Capture

Contact Info

Product

Resources

About