Introduction of tetrahydrofuran (THF) and its uses

Introduction of tetrahydrofuran (THF) and its uses

1. Introduction of tetrahydrofuran

Tetrahydrofuran (THF), flammable, low toxicity. Because THF has a low boiling point, good fluidity, strong solubility for many chemical substances, and good diffusion and penetration on the surface and interior of resins, it is widely used.

Tetrahydrofuran can dissolve all compounds except polyethylene, polypropylene and fluorine resin, especially has good dissolving effect on polyvinyl chloride, polyvinylidene chloride and styrene-butadiene rubber. Solvents in production and solvents for natural resins, synthetic resins, polyether rubber and polyurethane, and solvents for plastic pipe adhesives are known as "universal solvents".

2. the use of tetrahydrofuran

2.1 As a fine reaction intermediate, tetrahydrofuran can be used as a natural flavor enhancer of tetrahydrothiophene;

2.2 Tetrahydrofuran is used in medicine to produce carboxymethyl, progesterone, rifamycin, etc.;

2.3 In chemical production, tetrahydrofuran can be used to prepare polytetrahydrofuran, tetrahydrothiophene, 1,4-dichlorobutane, 2,3-dichlorotetrahydrofuran, valerolactone, ethylenediamine, 1,4-butanediol, Gamma-butyrolactone and many other chemical products.

2.4 Tetrahydrofuran can also be used as high-energy fuel, acetylene extraction solvent, electroplating coating liquid, precision tape cleaning agent, leather surface finishing agent, light stabilizer for polymer materials, etc.

2.5 The main use of tetrahydrofuran THF is to produce PTMEG. According to rough statistics, more than 80% of THF in the world is used to produce PTMEG, and PTMEG is mainly used to produce elastic spandex fiber.