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刘东方, 刘文凯, 薛宝达, 等. 铝土矿尾矿合成莫来石的研究[J]. 矿业科学学报, 2016, 1(3): 256-260.
引用本文: 刘东方, 刘文凯, 薛宝达, 等. 铝土矿尾矿合成莫来石的研究[J]. 矿业科学学报, 2016, 1(3): 256-260.
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Liu Dongfang, Liu Wenkai, Xue Baoda, et al. Study on synthesizing mullite with bauxite tailing[J]. Journal of Mining Science and Technology, 2016, 1(3): 256-260.
Citation: Liu Dongfang, Liu Wenkai, Xue Baoda, et al. Study on synthesizing mullite with bauxite tailing[J]. Journal of Mining Science and Technology, 2016, 1(3): 256-260.
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铝土矿尾矿合成莫来石的研究

Study on synthesizing mullite with bauxite tailing

    摘要
  • 摘要: 为使铝土矿尾矿得以高效利用,本研究以铝土矿尾矿为原料制备试样,将其置于钼丝炉中,分别在1550℃、1650 ℃保温4h合成莫来石。采用XRD、SEM和EDS等手段对不同温度下烧后试样的物相组成和显微结构进行表征;并借助TOPAS软件进行XRD全谱拟合无标样定量分析,确定莫来石的生成量。结果表明:利用铝土矿尾矿合成莫来石的纯度较高,晶粒发育良好,呈长柱状,互相交错。随着温度升高,莫来石生晶体轮廓更加清晰,其合成量略有增加。

     

    Abstract: To enhance the efficient utilization of bauxite tailings,the mullite was synthesized by bauxite tailings in molybdenum wire furnace at 1550 ℃ and 1650 ℃ for 4h.The sintered samples were analyzed by X-ray diffraction(XRD),scanning electron microscopy(SEM) and energy dispersive spectrometry(EDS).The content of mullite was determined by TOPAS.The results indicated that the mullite was in high purity and well growth.The mullite was long column in morphology,alternating each other.As the temperature increased,the crystal profile of mullite was much more clear and the content of mullite increased slightly.

     

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