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本文主要介绍包头高炉富稀土渣中两种具有经济价值的工艺矿物——铈钙硅石和含稀土钡氟金云母(含钪矿物)的物理性质、化学性质、它们的分选方法及其机理。根据红外光谱、量子化学有关参数计算、合成羟肟酸亚铈与羟肟酸浮选铈钙硅石之间的相关性,认为羟肟酸是以“O,O”作为键合原子与铈钙硅石表面以铈为主的金属离子构成五元环螯合物,从而实现其捕收作用。对含稀土钡氟金云母的浮选,则认为阳离子和阴离子两种捕收剂的联合作用要比单用一种捕收剂的效果好,这是因为最大限度地利用了矿物活化表面的缘故。文中还预估了提出的回收稀土和钪的工艺流程,如果在生产上得到实现,将能获得显著的经济效益,并使矿产资源得到更大程度的综合利用。
This article mainly introduces the physical and chemical properties of two kinds of economically valuable process minerals-cerium-silicate silica and barium-containing fluorophlogopite (including scandium mineral) in the rare earth-rich slag of Baotou blast furnace, their separation methods and their mechanisms. According to the infrared spectroscopy and quantum chemical parameters, the correlation between the synthesized cerium hydroxamate and hydroxamic flotation cerite-silica was studied. It is considered that the hydroxamic acid is “O, O” The surface of cerium-based metal ions constitute a five-membered ring chelate, in order to achieve its catching effect. For flotation of barium-containing fluorophlogopite, it is believed that the combined effect of the two collectors of cation and anion is better than that of a single collector because the mineral activation surface is utilized to the maximum . The article also estimated the proposed process of recycling rare earth and scandium, if achieved in production, will be able to obtain significant economic benefits, and mineral resources to a greater degree of comprehensive utilization.