PREPARATION OF CEMENT GRINDING AIDS BASED ON ALUMINA COMPOUNDS

When the cement grinding is performed in the ball mill, the grinding efficiency decreases due to the aggregation of the particles by the electrostatic phenomenon. Therefore, a lot of techniques for preventing agglomeration using various grinding aids have been introduced. In this study, for mineral grinding, the grinding aid composition including a water-soluble aluminate compound and the grinding method in which this grinding aid is used were described. Grinding aids based on aluminate-based compounds not only have high grinding efficiency but are also thermally stable as they are inorganic materials. Compared with the conventional grinding aids based on organic materials such as DEG and TIPA, even if the solid content is half contained, the grinding efficiency is similar and thus the cost can be reduced to half.