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研究了琥珀煤中树脂体的嵌布粒度及各个组分的可磨性，揭示了树脂体的嵌布特点和各煤岩组分可磨性之间的差异，指出树脂体适合用浮选或重选—浮选法进行回收，而且磨矿工作量不大 相似文献
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对煤中树脂体分离和提纯技术研究的意义，国内外科研工作者在煤树脂的性质，结构及分离提纯方面了取得的成果进行了综述。 相似文献
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Emission of large amount of SO2 from combustion of high sulfur coal causes serious envjsonmental pollution. Pre-combustion desulfurization of bigh sulfur coal has become a necessity. This paper reports test results of fine coal desuifurtzation with different flotation technology and the effect of pyrite depressant. Test work showed that when the coal sample from Zhong Liang Shah was processed with a Free Jet Flotation Column its pyritic sultur content was reduced from 3.08% to 0. 84%, with 72.22% recovery ofcombustible matter in clean coal. The concept of Desulfurlzatlon Efficiency Index Eofor comprehensive evaluation of dcsuifurlzation process is proposed, which is defined as the product of the ratio of sulfur content reduction of clean coal and the recovery of combustible matters. 相似文献
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