Calcium carbonate is a major component of limestone, the main raw material used to make glass. Lime and limestone are widely used as building materials and are an important raw material for many industries. Calcium carbonate can be directly processed into stone and fired into quicklime. Lime has quicklime and hydrated lime. The main component of quicklime is CaO, which is generally massive, pure white, and light gray or light yellow when containing impurities. Quicklime absorbs moisture or adds water to become hydrated lime, also known as hydrated lime, its main component is Ca(OH)2. Slaked lime is mixed into lime pulp, lime paste, lime mortar and so on, used as coating material and brick adhesive. Cement is made by calcination of limestone and clay at high temperature. Glass is made of limestone, quartz sand, soda (sodium carbonate) and other mixed by high temperature melting. Limestone is used as flux in ironmaking to remove gangue. Steelmaking uses quicklime as slagging material to remove harmful impurities such as sulfur and phosphorus. Calcium carbide (mainly CaC2) is produced by reacting quicklime with coke in an electric furnace. Soda ash is made from limestone, salt, ammonia and other raw materials through a multi-step reaction (Solvay method). Caustic soda is made by the reaction of lime and soda (causticizing). Bleached from the reaction of pure lime with chlorine gas. Calcium chloride, calcium nitrate, calcium sulfite and other important calcium salts are produced by chemical processing of limestone. Lime can remove the temporary hardness of water and is used as a hard water softener. Limestone is made into pure powdery calcium carbonate, which is used as filling material for rubber, plastic, paper, toothpaste, cosmetics and so on. Alkali lime made of lime and caustic soda, used as an absorbent of carbon dioxide. Quicklime is used as a desiccant and disinfectant. In agriculture, quicklime is used to prepare lime-sulfur mixture, Bordeaux liquid and other pesticides. Slaked lime can neutralize soil acidity, improve soil structure and supply calcium needed by plants. Brush the trunk with lime pulp to protect the tree.

Single fly powder: used for the production of anhydrous calcium chloride, sodium dichromate production of auxiliary raw materials. Glass and cement production of the main raw materials. In addition, it is also used for building materials and poultry feed.

Shuangfei powder: is the production of anhydrous calcium chloride and glass raw materials, rubber and paint white filler, as well as building materials.

Sanfei powder: used as filler for plastics, paint putty, paint, plywood and paint.

Fly powder: used as filler for insulating layer of electric wires, rubber molding products and asphalt linoleum.

Calcium carbonate is an important building material. The pure white calcium carbonate rock is called white marble and can be used directly for decorative stone columns or crafts. Because of impurities and have a beautiful pattern of calcium carbonate called marble, used to do the building wall and wall veneer or laying the ground; Dense calcium carbonate rock (limestone) can also be used directly for building houses, but the main use of limestone is to produce cement. The white stone containing more than 90% CaCO3 is crushed, graded and separated by Raymond mill or other high pressure mills.

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