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[Chemical Knowledge]：Properties and Uses of Isobutene

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Isobutene is an important raw material for chemical production, which has unique properties and a wide range of uses. This article will detail the properties, production methods, uses and market prospects of isobutylene.

1. the nature of isobutylene

isobutylene is a colorless, flammable, toxic gas with high chemical reactivity. Its molecular formula is C4H8, structural formula is CH2 = C(CH3)2, which belongs to olefin compounds. Isobutene has a boiling point of -6.9 ° C, a melting point of -139.2 ° C, and a slightly smaller density than air. Isobutene is insoluble in water, but readily soluble in organic solvents. The production method of

2. isobutene

isobutene is mainly obtained by cracking and dehydrogenation reactions in petrochemical processes. Specifically, hydrocarbon feedstocks such as naphtha and light diesel oil undergo cracking reactions under the action of high temperature, low pressure and a catalyst to generate low-carbon olefins including isobutylene. In addition, isobutylene can also be produced by a method such as propane dehydrogenation.

3. the use of isobutylene

1. Production of high octane gasoline additives
isobutylene can be used as a raw material for the production of high octane gasoline additives, such as methyl tert-butyl ether (MTBE) and ethyl tert-butyl ether (ETBE). These additives can increase the octane number of gasoline, improve its combustion performance, and reduce automobile exhaust emissions.
2. Production of butyl rubber
isobutylene can be used to produce butyl rubber, a kind of air tightness, aging resistance, excellent corrosion resistance of synthetic rubber. Butyl rubber is widely used in tire inner tube, pharmaceutical packaging, building waterproof and other fields.
3. Production of methyl methacrylate (MMA)
Isobutylene can be used as a raw material for the production of methyl methacrylate (MMA), MMA is an important organic glass monomer, with excellent transparency, weather resistance, chemical resistance and other characteristics, widely used in construction, automotive, electronic and electrical appliances and other fields.

4. market prospects

With the rapid development of the chemical industry, the market demand for isobutylene is showing a growing trend. Especially in the context of increasingly stringent environmental requirements, isobutylene is used as a raw material for the production of environmentally friendly products such as high octane gasoline additives and butyl rubber, and its market prospects are broad. In addition, with the continuous emergence of new technologies, the production process and application fields of isobutylene will continue to expand, providing more opportunities for the development of the isobutylene market.

However, it should be noted that there are certain safety risks and environmental protection issues in the production and use of isobutylene. Therefore, it is necessary to strengthen safety management and environmental protection measures in the production process to ensure the safety and sustainability of the production process. At the same time, it is also necessary to strengthen technology research and development and innovation to improve the production efficiency and application performance of isobutylene to meet the growing market demand.

In short, isobutylene as an important raw material for chemical production has a wide range of uses and broad market prospects. With the continuous advancement of technology and the growth of market demand, the production and application of isobutylene will continue to expand, injecting new impetus into the development of the chemical industry.

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