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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, when ferroalloys (for ferrosilicon) and industrial silicon are used. It is formed 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 used mainly 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 strength is 260.93MPa. The porosity of the material is 21%. The micro-silica can be used to improve the fluidity of refractory products, their bulk density, strength, cohesion, high-temperature performances, and extend the service life.
North America has some companies that use pellets of silica and microsilica fume mixtures for the reduction of electric furnaces and the smelting silicon. 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 powder and agglomerate into pellets that are about 4 cm long. They can then be directly reduced and heated using an electric furnace, without having to roast or dry. 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 a ferrochromium firm used the microsilica powder slurry from the electric furnace silica smelting method wet as the source of return silicon, and mixed it together with chromium ores to 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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