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鸡西煤田是东北地区重要的炼焦煤基地，由于受成煤环境的影响，原煤灰分较高，影响了煤炭精细加工利用和环境。采用Ｘ射线衍射、红外光谱等分析方法对鸡西煤的无机地球化学特征研究显示，煤中的主要矿物为石英、方解石、粘土矿物、黄铁矿和菱铁矿等，它们分别以不同的状态赋存于有机质中。煤灰的主要成分为ＳｉＯ２和Ａｌ２Ｏ３，其主要源自流水带入泥炭沼泽的石英和粘土等同生矿物。元素分析表明，煤中硫、磷及微量元素锗和镓等含量较低。
Jixi coalfield is an important coking coal base in Northeast China. Due to the influence of coal-forming environment, the ash content of raw coal is high, affecting the fine processing and utilization of coal and the environment. The study of inorganic geochemical characteristics of Jixi coal by X-ray diffraction and infrared spectroscopy shows that the main minerals in coal are quartz, calcite, clay minerals, pyrite and siderite, which are respectively deposited in different states In organic matter. The main components of soot are SiO2 and Al2O3, which are mainly derived from quartz and clay minerals that flow into peat swamps. Elemental analysis shows that sulfur, phosphorus and trace elements such as germanium and gallium are low in coal.