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[Chemical Knowledge]：What are the upstream raw materials for 1,4-butanediol? What are the downstream products?

Read： 578 Time：13months ago Source：Transform the World with Simplicity

1,4-Butanediol (BDO) is an important organic chemical raw material, which is widely used in plastics, fibers, adhesives, pharmaceuticals and other fields. In the field of chemical production raw materials, the upstream and downstream related products of 1,4-butanediol are very rich, and the main upstream and downstream products will be described in detail below.

upstream products:

1. Acetylene: Acetylene is one of the main raw materials for the production of 1,4-butanediol. 1,4-butanediol can be synthesized by the acetylene method.

2. Formaldehyde: Formaldehyde reacts with acetylene to generate 1,4-butynediol, which is then hydrogenated to obtain 1,4-butanediol.

3. Acetic acid: Acetic acid reacts with formaldehyde to form acetic acid formaldehyde, and then reacts with acetylene to form 1,4-butanediol.

downstream products:

1. Polybutylene terephthalate (PBT):1,4-Butanediol reacts with terephthalic acid to generate PBT, which is an engineering plastic with excellent heat resistance, chemical resistance and electrical insulation.

2. Tetrahydrofuran (THF):1,4-butanediol is dehydrated and cyclized to produce THF, which is an important solvent and chemical raw material and can be used to produce polyurethane, polyether and so on.

3. γ-butyrolactone (GBL):1,4-Butanediol is dehydrated under acidic conditions to generate GBL, which is a high boiling point solvent and can be used in the production of pesticides, pharmaceutical intermediates, etc.

4. Polyurethane (PU):1,4-Butanediol reacts with diisocyanate to form PU, which is a common foam plastic and is widely used in furniture, construction, automobiles and other fields.

In short, as an important organic chemical raw material, 1,4-butanediol has a wide range of upstream and downstream related products, involving plastics, fibers, adhesives, medicine and other fields.

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