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Brown Fused Alumina 60 Grit Manufacturers France

Primitive materials with high purity fused aluminum oxide refractory raw material conditions must have a large storage capacity in nature. Among the 109 elements of Mendeleev's periodic table of chemical elements, O, Si, Al, Fe, Ca, Na, K, Mg, H, Ti, Cu and Cl account for 99.29%, aluminium oxide blasting of which O accounts for 46.50% and Si accounts for 25.70 %, Al accounts for 7.65%, and the three elements rank in the top three.

Brown Fused Alumina 60 Grit Manufacturers France MOQ: 1 Ton! 19 Years Experience Brown Fused Alumina Manufacturer, 35,000m² Workshop Area, Free Samples, Fast Delivery!

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The elements in the crust rarely exist as simple matter, and most of them exist in the form of aluminum oxide for sand blaster compounds. Al2O3 is abundant in the crust, which accounts for about 25% of the total mass of the crust. It can be seen that Al2O3 has the conditions for making refractory raw materials. Especially in China, as the most material that contains Al2O3, which provides a raw material guarantee for the production of fused aluminum oxide materials.

(brown fused alumina 60 grit manufacturers france)In the future, further work will be carried out on synthetic raw aluminium oxide abrasive grit materials to form a series of high-quality refractory raw materials with Chinese characteristics. The crust (lithospheric) 86.5% is composed of silicate and aluminate. And more than 95% of industrial alumina is extracted with bauxite. As is known to all, bauxite has abundant reserves, the chemical composition of aluminium oxide blasting grit is Al2O3. 

China's bauxite is mainly distributed in Henan, Shanxi, Guangxi, Guizhou and Shandong provinces. So far, two kinds of black alumina raw materials have been used in the production of corundum: one is directly fused or sintered with natural bauxite to brown corundum, alumina corundum, sub-white corundum, etc .; the other is fused or sintered with industrial alumina. For white corundum, dense corundum, plate corundum, sintered corundum, etc.(brown fused alumina 60 grit manufacturers france)

Visible bauxite is an important raw material for the production of brown fused alumina. Alumina and kaleite can also be used to extract alumina. Bauxite is also called high bauxite or bauxite. The aluminum oxide blasting abrasive main minerals are bauxite (Al2O3 · H2O) and gibbsite (Al2O3 · 3H2O). According to the different structure of gibbsite, it can be divided into gibbsite (or arAl2O) · H2O boehmite and boehmite (or -Al2O3 · H2O boehmite, Baumeite).

(brown fused alumina 60 grit manufacturers france)The so-called bauxite is not a mineral name, but a mixture of boehmite, boehmite, and gibbsite. Its main chemical composition is Al2O3, and the brown aluminum oxide general content is 40% ~ 80%. The second mullite stage. This stage generally starts at 1200 ° C and the reaction is completed at 1400 ~ 1500 ° C. The presence of a liquid phase is conducive to the progress of secondary mullite, and it also provides conditions for the artificial corundum recrystallization of the latter stage.

The impurities in the natural bauxite chemical composition also vary greatly. In addition to Al2O3, there are also SiO2, TiO2, Fe2O3, CaO, MgO, K2O, Na2O, etc. These brown aluminium oxide chemical components constitute the following minerals: gibbsite, a Boehmite, as well as sillimanite-based minerals (ie sillimanite, andalusite, kyanite, whose general formula is Al2O3 · SiO2), aluminum oxide abrasive blasting grit kaolinite (Al2O3 · 2SiO2 · 2H20), rutile (TiO2), As well as dikasite and iron-containing minerals.(brown fused alumina 60 grit manufacturers france)

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Brown Fused Alumina And White Fused Alumina MOQ: 1 Ton! 19 Years Manufacturing Experience, 35,000m² Workshop Area, Factory Price, Free Samples, Fast Delivery!