What is microsilica powder?

Jun 21, 2021 / 573 views

Microsilica powder , also known as silica fume or condensed silica fume, is mostly produced in Yunnan, Sichuan, Henan, Shandong and other places. When ferroalloy is smelting ferrosilicate and industrial silicon (metallic silicon), a large number of highly volatile SiO2 and Si gases are produced in the ore-thermal electric furnace. After gas emission, the gases are precipitated by rapid oxidation and condensation with air.It is a by-product in large industrial smelting, and the whole process needs to be recycled with dust removal equipment, because the density is small, but also need to use encryption equipment for encryption.


Micro-silicon powder is gray or white, belongs to the amorphous system, and is mostly processed by natural quartz with relatively large particle size. There are 200 mesh, 300 mesh, 400 mesh, 500 mesh, 600 mesh, 800 mesh, 1000 mesh, 1250 mesh, 3000 mesh, 5000 mesh, 10000 mesh and so on. It is a kind of powder state.Micro-silicon powder is mainly used in cement, concrete, refractory materials, rubber, chemical dispersant and other fields.

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