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运用X射线衍射、N2吸附实验、扫描电子显微分析、等离子光谱等多种测试方法对铝土矿选矿尾矿特性进行了研究,揭示了尾矿一些不被关注的性质,诸如铁矿物的嵌布粒度、比表面积随煅烧温度的变化、煅烧对尾矿及其中各矿物化学反应活性的影响以及各主要矿物对磷酸根离子的吸附能力等。这些性质可望在研究废水处理、尾矿增白时得到应用。
The characteristics of tailings from the bauxite beneficiation were studied by X-ray diffraction, N2 adsorption experiments, scanning electron microscopy and plasma spectroscopy, revealing some uninteresting properties of the tailings, such as iron minerals The effects of calcination on the tailings and the chemical reactivity of the minerals therein, as well as the adsorption capacity of the major minerals to the phosphate ions, etc. are discussed. These properties are expected to be used in wastewater treatment and tailings whitening.