Synthesis of fine silica particles from iron ore tailings using water-in-oil emulsion
Fine silica particles were synthesized using sodium silicate from the iron ore tailings and ion exchange of ammonium sulfate at room temperature by water-in-oil (w/o) emulsion containing water, nonionic surfactant of Triton X-100, and cyclohexane. The reaction conditions and silica particles properties were investigated by X-ray diffraction (XRD), FT-IR analysis and scanning electron microscopy (SEM). The results showed that the particle size of SiO2 decreased with increase of reaction time and concentration of surfactant. The preparation conditions were experimentally determined for obtaining the fine silica particles with submicron size, narrow size distribution, sphere in shape, and high purity without sodium contamination.
YU Honghao HE Yan WANG Yulian XUE Xiangxin
College of Material Science and Engineering, Shenyang Ligong University, Shenyang,Liaoning 110168, C College of Resource and Civil Engineering, Northeastern University, Shenyang, Liaoning 110004,China College of Material and Metalurgy, Northeastern University, Shenyang, Liaoning 110004, China
国际会议
哈尔滨
英文
1717-1721
2011-03-26（万方平台首次上网日期，不代表论文的发表时间）