摘要
本文运用光学显微镜、带能谱的扫描电镜(SEM-EDS)、X射线衍射(XRD)、X射线荧光分光仪(XRF)等技术,对合山煤田河里洛山矿和石村矿的高有机硫煤中的常量元素及矿物学特征进行了研究。通过煤相参数计算发现,碱性越强,滞留的环境越有利于有机硫的富集,但利用煤相参数判断泥炭聚集时的介质条件时,需综合分析。煤中的矿物除高岭石、绿泥石、伊利石、伊/蒙混层,石英、方解石、白云石、黄铁矿外,还发现一些痕量矿物,包括石膏、菱铁矿、金红石、钾长石、沸石。它们的出现说明合山煤田中高硫煤的形成与一定程度的热作用有关。
In this paper,the macronutrient and mineralogical characteristics of high organic sulfur coals from the Heshan coalfield's Heriroshan and Shicun mines were investigated using microscope,scanning electron microscopy with an energy-dispersive X-ray spectroscopy(SEM-EDS),X-ray diffraction(XRD),X-ray fluorescence spectrometer(XRF).The results showed that the more alkaline,the weaker hydrodynamic conducive to the enrichment of organic sulfur.However,when geochemical parameters were used to judge the medium conditions of peat aggregation,a comprehensive analysis was needed.In addition to kaolinite,chlorite,illite,illite/smectite,quartz,calcite,dolomite and pyrite,some trace minerals were also found in coal:gypsum,siderite,rutile,potassium feldspar and zeolite.Their appearance indicated that the formation of high sulfur coal in Heshan coalfield was related to a certain degree of thermal action.
作者
陈龙
李新
谢志忠
王俊
赵巧静
Chen Long;Li Xin;Xie Zhizhong;Wang Jun;Zhao Qiaojing(Yunnan Administration of Coal Mine,Kunming 650225,China;Hebei University of Engineering,Handan 056038,China;China Construction Civil Engineering Corporation Ltd.,Beijing 100071,China)
出处
《煤炭与化工》
CAS
2021年第8期62-66,共5页
Coal and Chemical Industry
基金
国家自然科学基金(41472133)
河北省自然科学基金(D2017402121)。
关键词
合山煤田
高有机硫煤
常量元素
矿物学
Heshan coalfield
high-organic-sulfur coal
major elements
mineralogy
