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[Chemical Knowledge]：What are the upstream raw materials of OX? What are the downstream products?

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OX (o-xylene) is an important raw material for chemical production, which is widely used in the fields of plastics, fibers, solvents and pesticides. The following are the upstream and downstream related products of OX:

upstream products:

1. Petroleum: The main raw material of OX is naphtha, and naphtha is refined from petroleum. Therefore, fluctuations in oil prices have an impact on the production costs of OX.

2. Benzene: Benzene is one of the important raw materials of OX, and the production of benzene mainly comes from petrochemical industry and coal chemical industry.

downstream products:

1. Phthalic anhydride: OX can be oxidized to generate phthalic anhydride, which is an important raw material for the production of plasticizers and unsaturated polyester resins.

2. Maleic anhydride: OX can be oxidized to generate maleic anhydride, which is the raw material for the production of unsaturated polyester resins, pesticides and pharmaceutical intermediates.

3. phthalate: OX can be esterified to generate phthalate, phthalate is a widely used plasticizer, used in plastics, rubber, coatings and other fields.

4. Dioctyl phthalate: OX can be esterified with octanol to generate dioctyl phthalate. Dioctyl phthalate is a commonly used plasticizer used in PVC plastics, artificial leather, rubber and other fields.

In short, OX's upstream and downstream related products are very extensive, involving many fields, such as plastics, fibers, solvents, pesticides, medicines, etc.

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