For research the mechanism of SiO2-3 on the flotation behavior of muscovite in sodium oleate system, the muscovite samples were characterized by flotation solution chemistry, ζ potential, EDS and FTIR spectra etc was investigated. The result showed that when the pulp pH value was 6, the concentration of sodium oleate was 9.20×10-4 mol/L and the concentration of SiO2-3 was 3.53×10-5 mol/L, the recovery rate of muscovite is only 0.10%, the flotation behavior of muscovite was obviously inhibited by SiO2-3.%为研究油酸钠体系下SiO2-3对白云母浮选行为的作用机理,采用浮选溶液化学、ζ 电位、EDS和FTIR等方法对白云母样品进行了表征.结果表明,在矿浆pH值为6、油酸钠浓度为9.20×10-4 mol/L、SiO2-3浓度为3.53×10-5 mol/L的条件下,白云母仅有0.10%的回收率,SiO2-3可明显降低白云母的可浮性.
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