Silicon Calcium With Unique Characteristics

Calcium silicon, also known as calcium silicon, has a chemical formula of CaSiO3 and is a white or gray mineral. Calcium silicon alloy is an important alloy material, usually containing 22~35% calcium and 60~65% silicon. Calcium silicon can be divided into many different types according to its crystal structure and chemical composition. Calcium silicon is insoluble in water, but can be dissolved in acidic solutions. The hardness of calcium silicon is 3.5~4 and the specific gravity is 2.6~2.8.

Calcium silicon and its alloys are widely used in the fields of construction, metallurgy, chemical industry, etc.: Calcium silicon is mainly used as a concrete admixture in the construction industry to improve the durability, fire resistance and impermeability of concrete. Calcium silicon can also be used to prepare new building materials such as calcium silicate boards. These materials have the advantages of light weight, high strength, fire resistance, sound insulation, etc., and are widely used in building decoration and energy-saving renovation projects. Calcium silicon alloy is an important raw material in the metallurgical industry. It is mainly used as an inoculant for cast iron, which can improve the structure and properties of cast iron. At the same time, calcium silicon alloy has a strong reducing ability and is also used as a deoxidizer for high-quality steel, which can effectively improve the quality and performance of steel. In addition, calcium silicon can also be used to prepare other metallurgical auxiliary materials. The application of calcium silicon in the chemical industry is mainly reflected in the preparation of various silicon compounds. These silicon compounds are widely used in many chemical products such as rubber, plastics, coatings, adhesives, etc., and play an important role in improving product performance and reducing costs.

The production process of calcium silicate mainly includes the following steps: First, limestone is calcined to obtain quicklime. The calcination temperature is generally between 900 and 1000 degrees Celsius, and the time is about 1 to 2 hours. At the same time, siliceous raw materials such as quartz are prepared. Then the calcined quicklime is mixed with quartz in a certain proportion, and an appropriate amount of water is added, and the mixture is reacted by stirring and reacting in a reaction tank. During the reaction, the calcium oxide in the quicklime reacts with the silicon dioxide in the quartz to generate calcium silicate, while releasing a large amount of heat. The reaction time is generally from tens of minutes to several hours. Finally, the solution after the reaction is clarified, precipitated and filtered to remove impurities in the solution and improve the purity of the product. Then, the obtained calcium silicate particles are dried and packaged for subsequent transportation and use.

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