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

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Tetrahydrofuran (THF) is an important organic chemical raw material, which is widely used in medicine, pesticide, plastic, rubber, paint and other fields. In the field of raw materials for chemical production, there are many upstream and downstream related products of tetrahydrofuran, some of which are described in detail below.

1. Upstream product

(1) Butadiene: Butadiene is one of the main raw materials of tetrahydrofuran. Tetrahydrofuran can be generated by the epoxidation reaction of butadiene.

(2) Sulfuric acid: In the production process of tetrahydrofuran, sulfuric acid participates as a catalyst to promote the reaction.

(3) Propylene: Propylene can also produce tetrahydrofuran through some reactions, but this method is relatively rarely used.

2. Downstream Products

(1) Polytetrahydrofuran (PTHF): Polytetrahydrofuran is a high molecular compound, which is polymerized from tetrahydrofuran. It has excellent chemical resistance, low temperature resistance and mechanical properties, and is widely used in engineering plastics, fibers, coatings and other fields.

(2)γ-butyrolactone (GBL):γ-butyrolactone is one of the important derivatives of tetrahydrofuran, it can be used as a solvent, electrolyte and reaction intermediate, widely used in lithium batteries, medicine and pesticides and other fields.

(3)1,4-butanediol (BDO):1,4-butanediol is an important organic chemical raw material, which can be prepared from tetrahydrofuran by catalytic hydrogenation. It is widely used in the production of polyurethane, polyester, polyether and other polymer materials.

(4) Adipic acid: Adipic acid is an important dicarboxylic acid, which can be prepared by oxidation of tetrahydrofuran. It is widely used in the production of nylon 66, engineering plastics and fibers and other materials.

In short, tetrahydrofuran has a wide range of upstream and downstream related products in the field of chemical production raw materials, and the application of these products involves many fields, such as medicine, pesticides, plastics, rubber, coatings, etc.

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