Ground calcium carbonate is a kind of calcium carbonate powder produced by mechanical crushing with calcite, chalk, marble and other ore as raw materials. It is a common powder inorganic filler. The processing of heavy calcium carbonate has become a trend of large-scale, ultra-fine, intelligent, environmental protection and energy saving.
It has the advantages of high chemical purity, inertia, difficult chemical reaction, good thermal stability, no decomposition below 400 C, high whiteness, low oil absorption, low refractive index, soft, dry, no crystalline water, low hardness, low abrasion value, non-toxic, odorless, good dispersion, etc. Widely used in chemical industry, papermaking, medicine, building materials, can increase product volume, reduce costs, improve processing performance (such as adjusting viscosity, rheological properties, vulcanization properties), improve dimensional stability, reinforcement or semi-reinforcement, improve printing performance, improve physical properties (such as heat resistance, matting, wear resistance). Flame retardant, whiteness, gloss, etc.
Powder Requirements(1) Used in plastics, paint, paper and other industries (325-2500mesh)
In coatings and plastics industry, heavy calcium carbonate is usually used as filler, widely used in plastics, papermaking, paint, building supplies and other daily chemical industries. As filler, it can increase the volume of products and reduce production costs.(2) Used in fertilizer field (about 200mesh)
Ground calcium carbonate is almost composed of monocalcium phosphate, which does not degrade phosphoric acid in soil.