Heavy calcium carbonate is processed from high-purity natural calcite. The main component is CaCO3. It has relatively stable chemical properties, almost insoluble in water, dense crystal structure, smooth surface, uniform particle size, good processing performance, and low DOP oil absorption. Activated heavy calcium carbonate is after activation treatment, the molecular structure changes, the particle size distribution is uniform, and it is extremely hydrophobic. Good fluidity, good gloss, and large filling volume. It can reduce the wear of processing machinery, improve product processing technology, improve product performance, and has a better reinforcing effect.