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

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High-temperature coal tar has an important position in the field of chemical production raw materials, and its upstream and downstream related products are extensive. The following are the main upstream and downstream related products of high-temperature coal tar:

upstream products:

1. Coal: High-temperature coal tar is an important chemical raw material extracted from coal. The quality and composition of coal have an important influence on the yield and quality of high temperature coal tar.

downstream products:

1. phenolic compounds: high temperature coal tar is rich in phenolic compounds, such as phenol, cresol and so on. These compounds are important chemical raw materials and can be used in the production of plastics, synthetic fibers, synthetic rubber, pesticides, pharmaceuticals, spices, etc.
2. Naphthalene: High temperature coal tar also contains naphthalene, which can be used to produce phthalic anhydride, dyes, pesticides, etc.
3. anthracene: high temperature coal tar also contains anthracene, can be used for the production of anthraquinone dyes.
4. Asphalt: High-temperature coal tar can be distilled to obtain asphalt. Asphalt can be used in road paving, construction materials, etc.

In general, the upstream and downstream related products of high-temperature coal tar are very extensive, and have important applications in the fields of chemicals, pharmaceuticals, pesticides, dyes, and building materials.

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