magnesia alumina spinel brick

Magnesia alumina spinel is a synthetic spinel refractory raw material with magnesia and trialumina as raw materials. The raw material is rarely found in nature, and the industrial magnesium-aluminum spinel is synthetic. Bauxite based sintered magnesia alumina spinel is made of high quality bauxite with more than 76% Al2O3 content and high quality light fired magnesia powder with more than 95% MgO content, which is sintered in ultra-high temperature tunnel kiln at more than 1800°C after multistage homogenization process.

Advantages

Magnesium aluminum spinel is made of high quality bauxite with more than 76% Al2O3 content and high quality light fired magnesium powder with more than 95% MgO content. After multistage homogenization process, it is sintered at high temperature above 1800°C in ultra-high temperature tunnel kiln. It has large volume density, high mineral phase content, good grain development, uniform structure and stable quality. Magnesium aluminum spinel has good corrosion resistance, corrosion, peeling ability, good slag resistance, abrasion resistance, good thermal shock stability, high temperature resistance and other performance characteristics.

Application

The main uses of magnesia alumina spinel: one is to replace magnesia chromium sand to manufacture magnesia aluminum spinel brick for cement rotary kiln, not only to avoid chromium pollution, but also has good spalling resistance; Second, it is used to make ladle castable, which greatly improves the anti-erosion ability of steel lining. Make it widely used in steel refractory materials. The preparation of high quality pre-synthetic spinel provides a new raw material for the production of amorphous and amorphous high purity refractories.