The periodic law of trace elements in coal——A case study of the 5~# coal from the Weibei Coalfield  

作　　者：YANG JianYe 

机构地区：[1]Department of Material Engineering, Xi' an University of Science and Technology, Xi' an 710054, China

出　　处：《Science China Earth Sciences》2011年第10期1542-1550,共9页中国科学（地球科学英文版）

基　　金：supported by National Natural Science Foundation of China (Grand No. 40872101);Natural Science Foundation of Science and Technology Agency of Shaanxi Province (Grand No. DK07JK322);the Doctor Foundation of Xi'an Science and Technology University (Grand No. A5039)

摘　　要：To better understand the 5# coal （late Paleozoic） from the Weibei Coalfield, nine samples were collected in different locations of the 5# coal seam. The correlation coefficients between 51 trace elements including organic carbon, as well as ash, were calculated by statistical method. The variations of the squares of correlation coefficients with the first ionization energy, as well as ion radii of the corresponding elements, were comparatively investigated. The results show that the distribution law of the trace elements is in accordance with the chemical element periodic law and can be theoretically explained in detail. The distribution law is also suitable to the stable coal layer formed under the function of the coal accumulation, such as that in the Ordos Basin.To better understand the 5# coal (late Paleozoic) from the Weibei Coalfield, nine samples were collected in different locations of the 5# coal seam. The correlation coefficients between 51 trace elements including organic carbon, as well as ash, were calculated by statistical method. The variations of the squares of correlation coefficients with the first ionization energy, as well as ion radii of the corresponding elements, were comparetively investigated. The results show that the distribution law of the trace elements is in accordance with the chemical element periodic law and can be theoretically explained in detail. The distribution law is also suitable to the stable coal layer formed under the function of the coal accumulation, such as that in the Ordos Basin.

关 键 词：trace elements COAL element periodic law 

分 类 号：O6-64[理学—化学] Q581[生物学—生物化学]