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[Chemical Knowledge]：What are the upstream raw materials for coal tar pitch? What do the downstream products contain?

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Coal tar pitch plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are rich and diverse. This article will detail the upstream and downstream associated products of coal tar pitch, including upstream raw materials, downstream products and production processes.

1. upstream raw material

coal pitch upstream raw material is mainly coal tar. Coal tar is a black viscous liquid produced during the dry distillation of coal, and its main components are aromatic hydrocarbons and heterocyclic compounds. After distillation and separation of coal tar, fractions with different boiling points can be obtained, and the high temperature fraction is coal tar pitch.

2. downstream products

1. Carbon products: coal tar pitch as a binder can be used to produce carbon products, such as electrodes, anode paste, carbon blocks, etc. The aromatic components in coal tar pitch are pyrolyzed at high temperature to produce polycyclic aromatic hydrocarbons with good bonding properties.
2. Needle coke: Needle coke is a high-performance carbon material with excellent thermal stability, electrical conductivity and mechanical strength. Coal tar pitch can be used as a raw material for needle coke production, and needle coke with high purity and high structural performance can be prepared under specific process conditions.
3. Modified asphalt: Coal tar pitch can be modified by modification technology to improve its road performance and prepare modified asphalt. Modified asphalt has good high temperature stability, low temperature crack resistance and anti-aging performance, and is widely used in road construction.
4. Resin: Coal tar pitch can be used as raw materials for the production of resin, such as phenolic resin, epoxy resin, etc. These resins have good corrosion resistance, heat resistance and electrical insulation, and are widely used in chemical industry, electronics, construction and other fields.

3. production process

coal tar pitch production process mainly includes the distillation, separation and refining of coal tar. First, the coal tar is heated to a certain temperature, so that the components in it are separated according to different boiling points. Then, through cooling solidification, centrifugal separation and other processes, the coal pitch product is obtained. In the production process, it is necessary to strictly control the process parameters according to the product quality requirements to ensure the quality and stability of the product.

4. market situation and future prospects

coal tar pitch as a raw material for chemical production, which is in great demand in the market. With the continuous development of science and technology, the downstream application field of coal tar pitch is also expanding. In the future, with the rise of new energy, new materials and other fields, the market demand for coal tar pitch is expected to grow further. At the same time, with the increasingly strict environmental protection policy, the environmental protection management and waste utilization in the production process of coal tar pitch also need to be paid attention. Therefore, the future development trend of the coal tar industry will be to the efficient, environmentally friendly and sustainable direction.

In short, coal tar pitch plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are rich and diverse. With the continuous growth of market demand and the continuous progress of technology, the development prospect of coal tar pitch industry is broad.

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