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[Chemical Knowledge]：Properties and Uses of Calcined Char

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Calcinated coke is an important raw material for chemical production, which is widely used in metallurgy, chemical industry, building materials and other fields. It is made of petroleum coke, pitch coke and other coke materials calcined at high temperature, with high carbon content and good physical and chemical properties. In this paper, the properties and uses of calcined coke are introduced in detail.

1. The properties of calcined coke

1. Physical properties

calcined coke is a black, hard and brittle solid substance with high true density and low porosity. It has a large surface area and a strong adsorption capacity. In addition, the calcined coke also has good thermal stability and can be used at high temperatures.

2. chemical properties

calcined coke is the main component of carbon, the content is generally more than 90%. It also contains a small amount of hydrogen, oxygen, nitrogen and other elements. Calcined coke has good chemical stability, insoluble in water, acid and alkali, but can be oxidized by strong oxidant.

2. The use of calcined coke

1. Metallurgical field

In the field of metallurgy, calcined coke is mainly used as raw material for smelting steel. It can be used as a carbon source to increase the carbon content in molten steel, and it can also be used as a reducing agent to reduce iron oxides to iron. In addition, calcined coke can also be used as casting coke for heat preservation and carbonization of casting molten iron.

2.

in the field of chemical industry, calcined coke is mainly used as raw material for the production of silicon carbide, calcium carbide and other chemical products. Silicon carbide is an excellent material with high temperature strength, high hardness, wear resistance and corrosion resistance, which is widely used in metallurgy, machinery, chemical industry and other fields. Calcium carbide is an important basic chemical raw material, mainly used in the production of acetylene, vinyl chloride and other organic compounds.

3.

in the field of building materials In the field of building materials, calcined coke can be used as one of the raw materials for the production of cement to improve the strength and wear resistance of cement. At the same time, calcined coke can also be used as a concrete admixture to improve the performance and durability of concrete.

In conclusion, as an important raw material for chemical production, calcined coke has broad application prospects. Its physical and chemical properties make it a preferred material in metallurgy, chemical industry, building materials and other fields. With the continuous development of science and technology, the application field of calcined coke will continue to expand. The production process of

3. calcined coke
The production process of
calcined coke mainly includes the steps of raw material preparation, calcination, cooling and screening. The specific process is as follows:

1. raw material preparation: petroleum coke, pitch coke and other coke materials are crushed and screened to prepare raw materials with the required particle size.

2. Calcination: The raw materials are sent to the calciner and calcined at high temperature to remove volatiles, increase carbon content and true density, and improve physical and chemical properties.

3. Cooling: The calcined coke is taken out of the calciner and cooled to prevent cracking and deformation of the coke.

4. Sieving: The cooled coke is sieved and classified according to the particle size requirements to obtain calcined coke products with different particle sizes.
Precautions for
4. of calcined coke

In the production and use of calcined coke, the following matters need to be paid attention to:

1. Control the calcination temperature and time to avoid the occurrence of over-burning or under-burning, and ensure product quality.

2. During transportation and storage, pay attention to measures such as moisture protection, sun protection, and damage prevention to ensure product quality and stability.

3. During use, the appropriate calcined coke product should be selected according to the specific application scenario and requirements to ensure the use effect and safety.

In conclusion, as an important raw material for chemical production, calcined coke has broad application prospects and good development potential. In the future development, it is necessary to continuously improve the production process and technical level, strengthen product quality control and application research, and provide more high-quality raw material support for the development of various fields.

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