Uses of heavy calcium carbonate and light calcium carbonate; Calcium carbonate is a common inorganic compound with a wide range of uses. Depending on the preparation method and properties, calcium carbonate can be divided into heavy calcium carbonate and light calcium carbonate. Guangxi Longhua New Materials Calcium carbonate manufacturers will introduce the uses, characteristics, and application scenarios of heavy calcium carbonate and light calcium carbonate.

　　I. Heavy Calcium Carbonate

　　Heavy calcium carbonate refers to calcium carbonate obtained by mechanically crushing natural calcium carbonate minerals (such as calcite, marble, and chalk). It has advantages such as high density, high purity, good physical stability, and low cost, so it is widely used in the following fields:

　　1. Construction field: Heavy calcium carbonate can be used as a filler, pigment, and patching agent in the construction field. It has good compressive and flexural strength, which can improve the quality and durability of buildings.

　　2. Plastics and steel field: In the plastics and steel field, heavy calcium carbonate can be used as a reinforcing agent and pigment. It can improve the strength, hardness, and durability of plastic and steel products, while also improving the whiteness and gloss of the products.

　　3. Coatings field: Heavy calcium carbonate can be used as a filler and pigment in the coatings field. It can make the coating more uniform, flat, and smooth, improving the hiding power and durability of the coating.

　　II. Light Calcium Carbonate

　　Light calcium carbonate is produced by a chemical synthesis method, reacting carbon dioxide with calcium hydroxide. It has advantages such as high whiteness, high purity, high dispersibility, and low cost, so it is widely used in the following fields:

　　1. Rubber field: In the rubber field, light calcium carbonate can be used as a filler and reinforcing agent. It can improve the hardness and wear resistance of rubber, while also improving the tear resistance and anti-aging performance of rubber products.

　　2. Papermaking field: In the papermaking field, light calcium carbonate can be used as a filler and pigment. It can improve the density, hardness, and whiteness of paper, while also improving the water resistance and corrosion resistance of paper.

　　3. Cosmetics field: In the cosmetics field, light calcium carbonate can be used as a powder raw material and abrasive. It can make cosmetics more delicate and uniform, improving the quality and use effect of cosmetics.

　　III. Differences Between the Two

　　The main differences between heavy calcium carbonate and light calcium carbonate lie in their preparation methods, component characteristics, and application fields. Heavy calcium carbonate is obtained by mechanically crushing natural calcium carbonate minerals, while light calcium carbonate is obtained by chemical synthesis. Heavy calcium carbonate has a larger particle size, while light calcium carbonate has a smaller particle size. Heavy calcium carbonate is mainly used in construction, plastics and steel, and coatings, while light calcium carbonate is mainly used in rubber, papermaking, and cosmetics.

　　IV. Application Scenarios

　　In practical applications, both heavy calcium carbonate and light calcium carbonate have a wide range of application scenarios. In the construction field, heavy calcium carbonate can be used to produce concrete, gypsum board, coatings, and other building materials, while light calcium carbonate can be used to produce lightweight bricks and insulation materials. In the plastics and steel field, heavy calcium carbonate can be used to produce plastic steel doors and windows, pipes, and other products, while light calcium carbonate can be used to produce lightweight pipes and other products.