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

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

upstream products:

1. petroleum: mixed xylene mainly comes from the catalytic reforming and cracking process of petroleum. Therefore, petroleum is the main upstream feedstock for mixed xylenes.

Downstream Products:

1. Benzene: Mixed xylenes can be converted to benzene by a catalytic reforming process. Benzene is an important organic chemical raw material, mainly used in the production of styrene, aniline, phenol and so on.
2. Toluene: Mixed xylenes Toluene can also be separated. Toluene is commonly used in the production of phenol, aniline, benzoic acid and other chemicals.
3. Xylene Isomers: Mixed xylenes contain three xylene isomers: ortho-xylene, meta-xylene, and para-xylene. They are important organic chemical raw materials, widely used in the production of plastics, rubber, fiber and so on.
4. Ethylbenzene: Mixed xylenes can react with ethylene to produce ethylbenzene. Ethylbenzene is commonly used in the production of styrene, which is an important monomer in the production of polystyrene.
5. dodecyl benzene sulfonic acid: mixed xylene can be sulfonated, neutralized, washed and dried to produce dodecyl benzene sulfonic acid, which is an important surfactant, widely used in the production of detergents and emulsifiers.

In summary, the upstream and downstream related products of mixed xylene are very extensive, involving many important organic chemical raw materials and chemicals.

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