1. What is isopentene
Isoamylene is an important chemical raw material. Its main components are 2-methyl-2-butene and 2-methyl-1-butene. It is mainly used as a raw material for the production of pesticides, antioxidants and fragrances. Among them, conventional isopentene can be used to produce pinacolone, and then produce high-efficiency triazole fungicides, plant growth regulators, herbicides and other pesticides, as well as antioxidants such as 2,4-di-tert-amylphenol, etc., but cannot be used Yujiale musk fragrance production. High-quality isopentene products can not only be used in the production of pesticides and antioxidants, but also can meet the quality requirements for isopentene in the production of Jiale musk fragrance.
2. Current status of isopentene
The method for producing isopentene in the industry is mainly to use crude isopentene to refine it by etherification to obtain high-purity isopentene. At present, the development of isopentene products is earlier, and the company with the most mature industrialization is Shanghai Petrochemical. The larger-scale enterprise is Shandong Zibo United Carbon, with a production capacity of 1wt/a.
3. Isoamylene Market Application
As an important raw material for fine chemical intermediates, isopentene has a wide range of uses and is in great demand in China. In recent years, phosphorus-containing pesticides have been banned, and the market for non-phosphorus pesticides using isopentene as a basic raw material has developed rapidly. Several major uses of isopentene are as follows:
3.1 Pinatone
Conventional isopentene can be used to produce pinacolone, and then produce high-efficiency triazole fungicides, plant growth regulators, herbicides and other pesticides, as well as antioxidants such as 2,4-di-tert-amylphenol. There are more than 20 types of fungicides, plant growth regulators and insecticides synthesized with pinatonone as raw materials. These drugs have good effects, fast absorption, low toxicity, small dosage, and long-term action. The disease resistance and lodging resistance of the crops are improved, and the effect of increasing the yield is obvious.
Over the years, the abnormal global climate has caused frequent serious diseases of crops, which has driven the sales market of fungicides and growth regulators synthesized from pinatonone, and the domestic situation is very good. Downstream pesticide products using pinacolone as raw materials will maintain a good momentum of development and sales for a considerable period of time in the future.
3.2 Antioxidants
Isopentenes are important raw materials for the antioxidant prenylflavones. Prenyl flavonoids are products of alkylation on the flavone parent structure C6-C3-C6, and prenyl flavonoids are mainly distributed in the roots, stems and root bark of Morus plants. Prenyl flavone compounds have been found in research to have anti-tumor, anti-AIDS, anti-oxidation, anti-inflammation, anti-osteoporosis and inhibition of excessive tyrosinase. From the perspective of future development, prenylflavonoids have broad application prospects.
3.3 High-end spices
High-purity isopentene is one of the last important raw materials for high-grade perfume Jiale musk. Jiale musk has a strong musky aroma, with a sweet fragrance, accompanied by woody fragrance, and the fragrance is long-lasting. Kara Musk can be combined with Peach Aldehyde, Cinnamate, Balsam and other fragrances as a deodorant.
Jiale musk is widely used in various cosmetic fragrances. Jiale musk can be blended with other musks in perfume essence. Jiale musk has good stability and will not change color. It is widely used in daily necessities such as soap. In medicine, Jiale musk is an important pharmaceutical intermediate, and can also be used in myocardial therapy, stimulant and external medicine.
4. Summary
The production process of isopentene is mature, and it is an important chemical intermediate, which is widely used in the production of pinatonone, spices, agricultural protective agents and organic synthesis intermediates. In recent years, the etherification of light gasoline has become a hot topic, and the development and utilization of C5-C7 components in gasoline has become an important research direction. Using the etherification process to produce isopentene is also one of the important ways to comprehensively utilize the carbon five components of gasoline and improve the economic benefits of the petrochemical industry. As the export of isoamylene is classified as non-oil products, the export profit margin will increase after the export tax is exempted. As the export sales of isoamylene increase, the domestic isoamylene sales will rise sharply, and the market prospect is promising.
