Phenol ketone products

Plastic rubber

Current Location： Home > News > Chemical Knowledge > Properties, uses, upstream and downstream raw materials, storage methods of n-propionaldehyde, n-propanol Baidu Encyclopedia

[Chemical Knowledge]：Properties, uses, upstream and downstream raw materials, storage methods of n-propionaldehyde, n-propanol Baidu Encyclopedia

Read： 292 Time：4months ago Source：Ease of the world

Properties of n-Propionaldehyde

Propionaldehyde (Propionaldehyde), also known as propionaldehyde, is an organic compound with the chemical formula C3H6O. It is one of the simplest aldehydes and has a colorless liquid form with a pungent odor. n-Propionaldehyde is flammable at room temperature, has a low flash point (-33°C) and self-ignition point (207°C), its boiling point is 48.8°C, and its melting point is -81°C. Propionaldehyde is easily soluble in water, ethanol, ether and other organic solvents, with a certain degree of volatility and reactivity, especially with oxygen reaction to generate peroxide.

Propionaldehyde use

Propionaldehyde is widely used in chemical industry. It is an important intermediate in the production of many chemicals. For example, for the production of n-propanol, propionic acid and their esters and ethers. Propionaldehyde is also an important monomer for the preparation of polymers, which are used to make products such as plastics, synthetic resins and rubber. Due to its high reactivity, propionaldehyde is also used in the preparation of fragrances, pesticides and pharmaceutical intermediates. Especially in the perfume industry, n-propionaldehyde can synthesize a variety of perfume compounds, such as hydroxy linalool and citral.

Propionaldehyde upstream and downstream raw materials

The main production method of n-propionaldehyde is through the oxidation of propylene. Specifically, the upstream feedstock mainly comprises propylene and oxygen. In industrial production, n-propionaldehyde is usually prepared by gas phase oxidation or liquid phase oxidation. In the gas phase oxidation method, propylene and air are used as raw materials to produce n-propionaldehyde through oxidation reaction with a palladium catalyst, and a small amount of propionic acid and other oxidation products are by-produced. The other method is a liquid phase oxidation method in which n-propionaldehyde is produced by reacting oxygen and propylene under high pressure conditions.

In terms of downstream products, n-propionaldehyde can be further processed into a variety of chemical products. For example, n-propanol is produced by hydrogenation, which is further oxidized to propionic acid. Propionaldehyde can also react with ketones and amines to generate a variety of organic compounds, which are widely used in the fields of medicine, pesticide and fine chemical industry.

Propionaldehyde storage method

Due to the high volatility and flammability of n-propionaldehyde, its storage requires special attention. Propionaldehyde should be stored in a cool, well-ventilated special warehouse, away from fire sources, heat sources and oxidants. The storage container should be made of corrosion-resistant materials with good sealing, such as stainless steel or special plastic barrels, to ensure that the container is sealed to prevent volatilization and leakage. The warehouse shall be equipped with appropriate fire extinguishing equipment and protective measures, such as dry powder fire extinguishers, foam fire extinguishers, etc., to cope with possible fire risks.

In order to avoid inhalation of n-propionaldehyde vapor, workers should wear protective masks and protective gloves when operating and transferring n-propionaldehyde, and ensure good ventilation in the operating area. In case of leakage, personnel should be evacuated quickly and appropriate measures should be taken to clean up, such as using inert adsorption materials to absorb the leaked n-propionaldehyde.

Conclusion

Propionaldehyde is an important chemical raw material, because of its unique physical and chemical properties, widely used in the production of a variety of chemicals. Its production process mainly depends on the oxidation of propylene, and in downstream applications, can be converted into a variety of valuable chemical products. The high volatility and flammability of n-propionaldehyde also pose storage and handling challenges, requiring strict safety measures to ensure its safe use. Through the detailed analysis of the properties, uses, upstream and downstream raw materials and storage methods of n-propionaldehyde, we can better understand and utilize this important chemical raw material and provide strong support for the development of related industries.

Previous： What are the factors influencing the price of n-propyl ester? Detailed analysis, n-propyl ester price trend chart

Next： What are the factors influencing the price of n-propionaldehyde? Detailed analysis, the boiling point of n-propionaldehyde

News Categories