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[Chemical Knowledge]：Properties and Uses of Propylene

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Propylene is an important raw material for chemical production, which has a wide range of properties and uses. This article will detail the nature of propylene, production methods, safety and use and other aspects of the content.

1. the nature of propylene

propylene is a colorless, flammable, toxic gas, with high chemical activity and reactivity. Its molecular formula is C3H6, which is a simple olefin compound. Propylene has the following properties:

1. Flammable and explosive: After propylene is mixed with air, it will explode under certain conditions, so special attention should be paid to safety during use.

2. High chemical reaction activity: The carbon-carbon double bond in the propylene molecule makes its chemical reaction activity higher, and it is prone to addition, oxidation, polymerization and other reactions.

3. Non-toxic: Although propylene is a toxic gas, its toxicity to the human body is low, and it will cause harm to the human body only at high concentrations.

2. propylene production method

propylene production method mainly has two kinds: steam cracking and catalytic cracking. Steam cracking is a method in which naphtha or light diesel oil is mixed with steam and then cracked under high temperature and high pressure to produce low-carbon olefins such as propylene and ethylene. Catalytic cracking is a method of cracking heavy oil under the action of a catalyst to produce low-carbon olefins such as propylene and butene. The safety
of

3. propylene
Because propylene is a flammable and toxic gas, special attention should be paid to safety during use. The following are some precautions for the safe use of propylene:

1. Strictly control the concentration of propylene and avoid using it at high concentrations.

2. In places where propylene is used, ventilation equipment needs to be set up to maintain air circulation.

3. Containers for storing propylene must be well sealed to avoid leakage.

4. In the process of using propylene, it is necessary to comply with relevant safety operation procedures to ensure the safety of the use process.

4. the use of propylene

propylene is an important chemical raw material, in various fields have a wide range of applications. The following are some of the main uses of propylene:

1. Polymerization: Propylene can be used as a monomer for polymerization to generate polypropylene and other polymer compounds, which are widely used in plastics, fibers, rubber and other fields.

2. alkylation reaction: propylene can alkylate with benzene, toluene and other substances to generate alkyl benzene and other compounds, used as solvents, additives, etc.

3. oxidation reaction: propylene can be oxidized to produce acetone, acrylic acid and other compounds, used in the production of solvents, coatings, plastics, etc.

4. Hydrogenation reaction: Propylene can be hydrogenated to produce propane, which is used to produce fuels, solvents, etc.

In conclusion, propylene, as an important raw material for chemical production, has a wide range of properties and uses. Pay attention to safety during use, abide by relevant operating procedures, and ensure the safety of the production process.

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