1. College of Material Science and Engineering,Xi’an University of Science and Technology,Xi’an　 710054,China; 2. College of Geology and Environment, Xi’an University of Science and Technology,Xi’an　 710054,China

通过对山西8号煤层5个不同煤级的微量元素富集程度和元素酸脱除率的统计对比,发现,受岩浆热力烘烤作用影响的煤的变质程度对煤中微量元素的富集个数、富集程度和赋存形态影响甚大。总的趋势是,煤变质程度愈大,富集元素的数量趋于减少,富集程度趋于减弱,但赋存形态却趋于复杂;可能出现的岩浆期后富硫化物热液还使得西山部分矿区富集的亲铜元素比例明显增大;与此同时,还以元素周期律和数学遍历算法为指导,用MATLAB软件编制的程序定量求出了5个不同煤种元素脱除率变化态势和其第1电离能变化态势的相似程度,发现,随着煤变质程度的增加,元素脱除率和第1电离能的相似程度也趋于减小。凡是用数学方法筛除的元素大都是一些异常富集的微量元素和赋存形态并非单一矿物结合态的元素,而未被筛除的元素,则多以矿物结合态为主。

The concentrate degree of trace element and its acid-removal rate of elements for the 5 different rank of coal from No. 8 coal formation in Shanxi Province of China have been analyzed and suggested that the coal metamorphic de- gree had played a big role in concentrate amount,level and occurrence of trace elements in coal. In general,the stron- ger metamorphic coal is characterized by the fewer enrichment numbers and the smaller enrichment degree of trace el- ement. While their occurrence modes of trace elements are quiet complicated. The proportion of chalcophlile elements had been increased due to the influence of post magmatic hydrothermal occurred widely in Xishan Mine. Furthermore, the level of similarity between the acid-removal rate of trace elements and its first ionization energy was quantitatively obtained using MATLAB software guided by Ergodic manner and element periodic law. Consequently,it was proposed that the coal level of similarity would decrease when its metamorphism is stronger. Most of elements rejected by the MATLAB software are evidently enriched trace elements and shows complex contained in more than two minerals. But, elements not rejected by MATLAB software are those occurred as the combined state of minerals.

YANG Jianye,ZHANG Weiguo,QU Lianying. Preliminary study on the acid removal rate of element in the different rank of coal[J]. Jour- nal of China Coal Society,2018,43(2):519-528.