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[Chemical Knowledge]：What are the upstream raw materials for dimethyl carbonate? What are the downstream products?

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Dimethyl carbonate (DMC) is an important organic chemical raw material, which is widely used in the production of various chemicals. The following are the upstream and downstream associated products of dimethyl carbonate:

Upstream products:

1. Methanol: The production of dimethyl carbonate mainly uses methanol, carbon dioxide and oxygen as raw materials and is produced through esterification.
2. Carbon dioxide: A large amount of carbon dioxide gas is used in the production of dimethyl carbonate, usually from industrial tail gas or natural gas.

downstream products:

1. Polyurethane: Dimethyl carbonate can be used to produce polyurethane foam materials, which have excellent heat preservation and sound insulation properties, and are widely used in construction, home appliances, automobiles and other fields.
2. Propylene carbonate: Dimethyl carbonate reacts with propylene oxide to generate propylene carbonate, which is used as a solvent, electrolyte, etc.
3. Methyl tert-butyl ether: Dimethyl carbonate reacts with isobutylene to generate methyl tert-butyl ether, which is used as a gasoline additive to increase the octane number of gasoline.
4. methyl methacrylate: dimethyl carbonate can be used as raw material to produce methyl methacrylate, used in the production of organic glass, coatings, etc.

In short, dimethyl carbonate has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products involve many fields, which plays an important role in promoting the development of the chemical industry.

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