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[Chemical Knowledge]：What are the upstream raw materials for coker xylene? What are the downstream products?

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Coking xylene has an important position in the field of chemical production raw materials, and its upstream and downstream related products are extensive. The following will introduce the main upstream and downstream associated products of coking xylene in detail.

Upstream Associated Products:

1. Coke: The production of coking xylene mainly uses coke as raw material, and through the high-temperature coking process, the hydrocarbons in the coke are cracked to obtain coking xylene.
2. Coal tar: Coal tar is an important by-product produced in the coking process, which contains a large amount of hydrocarbons. After separation and purification, coking xylene can be obtained.

downstream related products:

1. aniline: coking xylene can be used as raw materials to produce aniline, aniline is an important organic chemical raw materials, widely used in the production of rubber additives, dyes, pharmaceutical intermediates.
2. Phenol: Coking xylene can also be further processed to produce phenol, which is an important chemical raw material for the production of phenolic resin, bisphenol A, adipic acid, etc.
3. maleic anhydride: coking xylene through oxidation reaction can generate maleic anhydride, maleic anhydride is an important organic chemical raw materials, used in the production of unsaturated polyester resin, pesticides, pharmaceutical intermediates.
4. methyl methacrylate: coking xylene can be used as raw material to produce methyl methacrylate, methyl methacrylate is a polymer monomer, used in the production of organic glass, coatings, adhesives and so on.

In general, coking xylene has a wide range of upstream and downstream related products, involving many fields, such as dyes, medicines, pesticides, and polymer materials. With the continuous development of science and technology, the application field of coking xylene will be further expanded, which will inject new vitality into the development of the chemical industry.

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