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- W3145586645 abstract "In order to understand the relationship between REE and organic groups in coal,the vitrain samples,which taken from the rich coal,the coking coal,the meager coal and lean coal of No. 8 coal seams at Taiyuan Xishan Mine,North China,were firstly demineralized by acid pickling. Subsequently,they were analyzed by both lanthanides testing and Fourier Transform Infrared Spectroscopy( FTIR). The results show that the two kinds of data may be synchronous varied,or reversely varied or no relationship as coalification increases. Accordingly,the organic structure-groups in coal can be divided into three subgroups: an affinity organic structure-group for lanthanides( mainly LREE),an abhorred organic structure-group for lanthanides( mainly LREE too) and a neutral organic structure-group which is neither affinity nor abhorred for lanthanides. Furthermore,the lanthanides,especially LREE,maybe combined with ν as. CH2andν as. CH3. While Pr,Nd,Sm,Eu,Gd combine with CH—( CH3) and aromatic ring with two adjacent hydrogens.( They all belongs to the affinity organic structure-group for lanthanides). Different types of organic structure-groups have different effects on the geochemistry of lanthanides. A fractionation effect of both affinity and abhorred organic structure-groups on lanthanides was discovered by analyzing the different responses. Therefore,the geochemistry of lanthanides performed abnormally due to the organic groups in coal." @default.
- W3145586645 created "2021-04-13" @default.
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- W3145586645 date "2015-01-01" @default.
- W3145586645 modified "2023-09-24" @default.
- W3145586645 title "Relationship between lanthanides and organic matter in coal from FTIR analysis results: An example of No.8 coal seam from Taiyuan Xishan Mine,North China" @default.
- W3145586645 hasPublicationYear "2015" @default.
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