Place of Origin : Lanzhou,China
Delivery Time : 15 Days

Microsilica, also known as silica fume, is a by product of the reduction of high-purity quartz with coal in electric furnaces in the production of silicon and ferrosilicon alloys. Microsilica is also collected as a by product in the production of other silicon alloys such as ferrochromium, ferromanganese, ferromagnesium, and calcium silicon. Before the mid-1970s, nearly all microsilica was discharged into the atmosphere.