石从秋,李伍

• 1:中国矿业大学煤层气资源与成藏过程教育部重点实验室
• 2:中国矿业大学资源与地球科学学院

摘要(Abstract)：

燃煤产物中富含丰富的微量元素，但很容易受到地质因素以及不同燃烧条件的影响，因此需要对不同区域的燃煤产物进行详细表征，从而可以确定其是否具有重大经济价值的潜力。本研究以江苏某电厂的原煤和燃煤产物为研究对象，使用X射线衍射（XRD）、场发射扫描电镜（FESEM）、等离子体质谱仪（ICP-MS）等手段对样品进行矿物学和地球化学分析。结果表明：原煤主要矿物为高岭石和石英，以及少量的伯姆石，粉煤灰与炉渣所含矿物主要为莫来石与石英，除此之外粉煤灰中还含有少量刚玉；燃煤产物中的Li、Ga、Hf、Zr、Pb、Th、U以及大部分稀土元素都表现为富集的程度，而且产物的REY评价都位于有前景的区域内，可提取空间大，具有较高的经济意义及社会意义；粉煤灰中Zn、Mo、Sb、Tl、Pb富集的原因可能是由于颗粒物的粒径较小，从而使得比表面积较大，元素更容易被吸附或原煤中存在高挥发性金属氯化物及原煤对有机或硫化物的具有更高亲和力等原因。

关键词(KeyWords)： 燃煤产物;粉煤灰;富集;微量元素

Abstract:

Keywords:

基金项目(Foundation): 新疆维吾尔自治区重大科技专项（2022A03014-2）

作者(Author): 石从秋,李伍

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