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Silica fume (also known as Microsilica) is amorphous powdery silica (SiO2) collected by specifically designed dust collectors from the oxide silicon steam discharged through the flue in the process of smelting industrial silicon or silicon alloy. The average particle diameter of silica fume is 0.15 ~ 0.20 μ m; the specific surface area is 15000 ~ 20000m 2/kg, and it has strong surfactivity. The main ingredient of silica fume is amorphous silica. The rising furnace gas also carries impurities such as free C, Fe2O3, CaO, K2O, Na2O and so on. The color of silica powder varies with the increase of the content of C and Fe2O3, changing from white, off-white, gray, to dark gray. Silica fume directly undergoing dust collection is called prime fume, which has a bulk density of 150 ~ 300kg/m3. In order to facilitate transport and engineering applications, it is also possible to intensify the prime fume.
Silica fume (also known as Microsilica) is amorphous powdery silica (SiO2) collected by specifically designed dust collectors from the oxide silicon steam discharged through the flue in the process of smelting industrial silicon or silicon alloy. The average particle diameter of silica fume is 0.15 ~ 0.20 μ m; the specific surface area is 15000 ~ 20000m 2/kg, and it has strong surfactivity. The main ingredient of silica fume is amorphous silica. The rising furnace gas also carries impurities such as free C, Fe2O3, CaO, K2O, Na2O and so on. The color of silica powder varies with the increase of the content of C and Fe2O3, changing from white, off-white, gray, to dark gray. Silica fume directly undergoing dust collection is called prime fume, which has a bulk density of 150 ~ 300kg/m3. In order to facilitate transport and engineering applications, it is also possible to intensify the prime fume.
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Shandong Pengcheng photovoltaic materials Co., Ltd.
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