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

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Ethylene is an important raw material for chemical production, with a wide range of upstream and downstream related products. The following are some upstream and downstream related products of ethylene:

1. Upstream products:

(1) Petroleum: Ethylene is mainly derived from petroleum cracking, so petroleum is the main upstream raw material of ethylene.

(2) Natural gas: Natural gas can also be used to produce ethylene, but it is relatively rarely used.

(3) Coal: Coal can be converted into synthesis gas through gasification, liquefaction and other processes, and then further converted into ethylene.

2. Downstream products:

(1) Polyethylene (PE): Ethylene can be polymerized to produce polyethylene, which is a widely used plastic material for the production of various daily necessities, packaging materials, pipes, etc.

(2) Ethylene propylene rubber (EPDM): ethylene can be copolymerized with propylene to produce ethylene propylene rubber, which is used to produce rubber products with oil resistance, acid resistance, oxidation resistance and other performance requirements.

(3) Ethanol: Ethylene can generate ethanol through hydration reaction, which is an important organic solvent and chemical raw material.

(4) Acetaldehyde: Ethylene can generate acetaldehyde through oxidation reaction, which is an important organic chemical raw material for the production of plastics, fibers, medicines, etc.

(5) Acetic acid: Acetaldehyde can be further oxidized to produce acetic acid, which is an important organic acid used in the production of cellulose acetate, acetate, etc.

above only lists some of the upstream and downstream related products of ethylene, in fact, ethylene is widely used in chemical production, and there are many other upstream and downstream related products.

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