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[Chemical Knowledge]：What are the upstream raw materials of MEG and what are the downstream products?

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MEG, also known as ethylene glycol, is an important organic chemical raw material that is widely used in the production of various chemicals and polymers. In the field of chemical production raw materials, MEG's upstream and downstream related products are very rich. The upstream and downstream associated products of MEG will be described in detail below.

Upstream Products:

1. Ethylene: The main raw material for MEG is ethylene, which is produced by the ethylene oxidation method. Therefore, the price and availability of ethylene have an important impact on the production cost and market price of MEG.

2. Oxygen: MEG production process requires the use of oxygen as an oxidant, so the supply of oxygen is also one of the important factors in MEG production.

Downstream Products:

1. Polyester (PET):MEG is one of the important raw materials for the production of polyester. It reacts with terephthalic acid (PTA) to produce polyester. Polyester is a polymer compound, widely used in the production of fibers, films, containers, etc.

2. Glycol Ethers: MEG can react with alcohols, acids, etc. to generate various glycol ethers, such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, etc. These compounds are widely used in solvents, cleaning agents and other fields.

3. Antifreeze: MEG can be used as the main component of antifreeze for antifreeze protection of cooling systems such as automobiles and aircraft.

4. Surfactant: MEG can be used to produce some surfactants, such as alcohol ether sulfate, alcohol ether carboxylate, etc. These surfactants have a wide range of applications in washing, emulsification and other fields.

In short, MEG is an important organic chemical raw material, and its upstream and downstream related products are very extensive, involving many fields, such as polymers, solvents, cleaning agents, antifreeze, surfactants, etc. Therefore, the production and supply situation of MEG also has an important influence on the development of these fields.

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