Highly reactive alumina
Highly reactive aluminium oxide aluminas are needed for catalytic and absorbent applications. These are gently calcined at particularly low temperatures. The process produces alumina with a high specific surface area, measured as BET.
Aluminium oxides often act as a carrier material for catalysts. This saves on the amount of actual catalyst used, such as finely divided platinum. The expensive catalysts only have to be applied in thin layers, which makes the use of aluminium oxide economically attractive. In addition, aluminium oxide provides a solid substrate for the catalyst, which is usually mechanically unstable. All in all, aluminium oxide saves costs and increases efficiency. In some cases, aluminium oxide is also used as a catalyst itself.
Thus, for many years, economics and ecology have given the necessary impetus to developments in the catalyst sector. Consistent optimisation in the use of raw materials, energy input and optimal yields are the result.
Gamma Alumina
Typically, gamma alumina is used in the catalyst area. Gamma refers to the metastable, amorphous and highly reactive modification of aluminium oxide. As a rule, BET values (specific surface area) of over 200 m²/g are found here.
Absorbent
Mipri has activated granulated alumina that can be used in water treatment. This shows very strong selectivity and good efficiency in defluoridating the water. This is a problem that is becoming more and more common.
Our aluminium oxide is characterised by high strength and low abrasion at this point. At the same time, it does not swell or expand in water. This product can be processed dust-free and does not show any cracks in the granulate.