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What is micro silica vapor?
Micro-silica Also known as silica or condensed fume, fume is a form of silica. The mine thermoelectric oven produces many gases, including SiO2 and Si, when ferroalloys (also known as metal silicon) are used to melt ferrosilicon. It is produced through rapid oxidation. It is produced by large-scale industrial melting. It is necessary to recycle this entire process with the help of dust removal equipment and environmental protection gear. Encryption equipment is needed because of the low density.

What are the main applications of microsilica?

It is used widely in the refractory industries because it has excellent properties like high refractoriness. It is mainly utilized to prepare high temperature ceramics, ladle material, high temperature wear-resistant materials and breathable bricks. Wang Tao et al. By using micro-silica and Al2O3 powder in a 3:2.5 ratio and a 1450degC sintering heat, they prepared high-purity mullite porous ceramics. Its compressive strengths are 260.93MPa & 21% respectively. The micro-silica can improve bulk density, strength, cohesion, and high temperature performance of refractory products. It can also be used to extend the service life and achieve internal digestion of dust produced by ferrosilicon or industrial silicon smelting companies.
Some North America firms also use silica and microsilica fume mixed granules as raw material for electric furnaces reduction and silicon melting. They found the silicon recovery is normal and that the energy consumption for the unit product remains the same. Elkem in Norway will wet micro-silica with water and agglomerate into pellets about 4 cm. These can then be reduced and smelted directly in an electrical furnace, without roasting and drying. Sintered ore can also be produced at high temperatures without any problems such as bursting. In a Russian factory, micro-silica fumes and liquid waste from paper pulp are mixed into pellets. They then undergo reduction smelting using an electric furnace. This production shows that pellets can be transported without breaking because they are more durable than other materials. In Northern Europe, an enterprise that produces chromium used the microsilica powder slurry from the electric furnace wet silicon smelting method to mix with the chromium ore and pelletize. The micro-cassia was found to improve the cohesiveness of chromium pellets.

The majority of companies in the metalworking industry use microsilica fume to return materials. While this method can reduce environmental pollution due to micro-silica, it doesn’t fully exploit the magical properties of micro-silica. This is a very extensive application.

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