How is tetrahydrofuran produced?
There are several methods for synthesizing tetrahydrofuran, including:
Catalytic hydrogenation of furan in the presence of a nickel catalyst.
Furfural undergoes decarbonylation to produce furan in the presence of a zinc-chromium-molybdenum catalyst, which is then hydrogenated to tetrahydrofuran.
1,4-Butanediol undergoes dehydration in the presence of an acidic catalyst. Acetylene reacts with formaldehyde to produce 2-butyn-1,4-diol, which is subsequently hydrogenated to 1,4-butanediol. This saturated diol can rearrange into a ring under high-temperature acid catalysis to produce tetrahydrofuran. This reaction can use a variety of catalysts, including rare earth oxides, aluminosilicates, and inorganic acids. This process is known as the Rape process.
Butadiene is oxidized to 1,4-diethoxy-2-butene under high pressure (3 MPa) and high temperature (80 °C) in the presence of a palladium catalyst. This compound is then hydrogenated to 1,4-diethoxybutane, which is finally hydrolyzed to produce tetrahydrofuran.
The last method relies on a two-step process starting with n-butane. The first step is oxidation to maleic anhydride, followed by hydrogenation using a rhenium-palladium-doped catalyst to synthesize tetrahydrofuran.
Tetrahydrofuran Applications
THF is an important industrial solvent and intermediate, valued for its versatility, stability, and compatibility with a wide range of organic and polymeric materials.
Common applications include:
Solvent for polymerization and coatings – ideal for dissolving resins, adhesives, and chemical coatings such as polyurethanes.
Precursor to PTMEG – used in the chemical solution production of elastomers and polyurethanes.
Chromatography and laboratory reagent – commonly used in high-performance liquid chromatography and other analytical methods.
Electronics manufacturing – used for polymer cleaning and the preparation of conductive films.
Resin and adhesive production – helps achieve uniform viscosity and enhances the flexibility of end-use products.
Safe Handling and Storage
Tetrahydrofuran is classified as a highly flammable liquid and a peroxide-forming compound. Therefore, safe storage measures include:
Store in a sealed container filled with an inert gas (nitrogen or argon);
Avoid contact with oxidizers, high temperatures, and direct sunlight;
Maintain a storage temperature between 5°C and 25°C;
For long-term storage, regularly monitor for peroxide accumulation.
Why choose to buy tetrahydrofuran from Anhui Liwei?
Anhui Liwei has been a leading chemical supplier in China for nearly 20 years. We hold multiple ISO standard certifications and offer 100% quality assurance for all products, possessing the knowledge and experience to meet all business needs. Please contact us for more information.