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

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Coal tar (high temperature) plays an important role in the field of raw materials for chemical production, and its upstream and downstream related products are rich and diverse. The following are some of the main upstream and downstream related products:

1. Upstream products: The high-temperature processing of
coal tar requires some specific raw materials and auxiliary materials. The main upstream raw materials include coal and coke, which are processed at high temperatures by processes such as dry distillation and pyrolysis to produce coal tar. In addition, the production process also needs some auxiliary materials, such as catalyst and heat energy.

2. Downstream products:
coal tar (high temperature) can be further processed and processed to produce a variety of important chemicals. The following are some of the main downstream related products:
Benzene: Coal tar contains a large amount of benzene. Through distillation and other processes, high purity benzene can be extracted. Benzene is an important organic chemical raw material and is widely used in the production of plastics, rubber, fiber and other products.
(2) Toluene: Coal tar also contains more toluene. Through separation and purification, high-quality toluene can be obtained. Toluene is often used in the production of phenol, aniline, benzoic acid and other chemical products.
(3) xylene: coal tar also contains a certain amount of xylene, through appropriate processing and treatment, can get different purity of xylene, xylene is widely used in the production of coatings, resins, solvents and other chemicals.
(4) Naphthalene: Coal tar contains a large amount of naphthalene. High purity naphthalene can be extracted by crystallization and distillation. Naphthalene is often used in the production of dyes, pesticides, spices and other chemical products. The

above only lists some of the upstream and downstream related products of coal tar (high temperature). In fact, the processing and utilization of coal tar is very extensive, and many other chemical products and pharmaceutical intermediates can be produced.

In short, coal tar (high temperature) plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are rich and diverse, which is of great significance to promote the development of the chemical industry and improve the efficiency of resource utilization.

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