Epichlorohydrin (ECH) is an important organic chemical raw material and fine chemical product. It is mainly used for the production of epoxy resin, synthetic glycerol, chlorohydrin rubber and glycidyl ether.
Domestic market status
In recent years, due to the continuous increase in the demand for epoxy resins, the domestic development of epichlorohydrin is promising, and many manufacturers have newly built or expanded epichlorohydrin production facilities. As of the end of September this year, nearly 10 companies in China have produced epichlorohydrin with a total production capacity of 497,000 tons. Except for the 60,000 tons/year glycerin production process of Jiangsu Yangnong Chemical Group Co., Ltd., the rest are used. Chloropropylene production process.
Due to the strong demand in the downstream market, coupled with tight domestic supply, there is a large room for product profit. At present, there are still many sets of epichlorohydrin devices under construction or under construction. It is expected that by 2012, the total production capacity of epichlorohydrin in China will reach 1 million tons.
Before 2000, China's epichlorohydrin was mainly used for the production of epoxy resin and synthetic glycerin, of which the epoxy resin accounted for about 34.6% of the total consumption of epichlorohydrin, the synthetic glycerol accounted for about 59%, and the other accounted for about 6.4%. . Later, due to the high cost of synthetic glycerol, the output decreased year by year, combined with the continuous development of the use of epoxy resin and the large increase in demand, making the consumption structure of epichlorohydrin significantly changed.
In 2007, the consumption structure of epichlorohydrin in China was: consumption of epoxy resin accounted for 85.6% of total consumption, consumption of synthetic glycerin accounted for about 4.2%, consumption of chlorohydrin rubber accounted for about 3% Other areas (such as solvents, stabilizers, surfactants, flame retardants, oilfield chemicals, and water treatment agents, etc.) account for about 7.2%.
Future development proposals
It is estimated that by 2012, the market demand for epichlorohydrin in China will reach approximately 700,000 tons, and the production capacity at that time will reach approximately 1 million tons. The production capacity will be in excess and the market competition will be fierce. In order to avoid adverse effects caused by excess production capacity, the epichlorohydrin industry in China should focus on several issues in the future.
Actively adopt safe and environmentally friendly glycerol production technology. China is a big country for energy consumption. The self-sufficiency rate of crude oil is only about 50%. To develop biomass energy is an established national long-term goal. Therefore, China will have a large amount of bio-glycerine resources to be used in the future. The production of epichlorohydrin using bio-glycerine as raw material can not only reduce the dependence on petroleum, but also promote the development of biomass energy industry, which has great economic and social value.
Expand the application of epichlorohydrin. China's epichlorohydrin is mainly consumed in epoxy resin and synthetic glycerine, others such as epichlorohydrin elastomer (ie, chlorohydrin rubber), glycidyl ester, polyamide water treatment agent, glycidyl methacrylate, quaternary ammonium The amount of salt products, stabilizers, ion exchange resins, flame retardants, water treatment agents, solvents, etc. is very small, and more efforts should be made to improve the current consumption limit so that it can gradually meet the needs of the international market. In addition, some special epoxy resins, such as poly-epichlorohydrin resin, can also be developed vigorously.
Actively develop intermediate products such as allyl chloride and allyl alcohol. Chloropropene and allyl alcohol are important intermediates for organic synthesis. They can be used not only for the production of epichlorohydrin, but also for the production of pesticides, pharmaceuticals, resins, synthetic material additives, coatings, and the like. Acrylic alcohol is also an important intermediate for the preparation of 1,4-butanediol, glycidol, plastic additives, fragrances, pharmaceuticals and agrochemicals. Epichlorohydrin companies should actively develop and produce epichlorohydrin intermediate products such as allyl chloride and allyl alcohol to enhance their ability to withstand market risks.
Newly built devices are best to achieve integrated upstream and downstream development. With the rapid increase in the production capacity of epichlorohydrin, the market competition has become fiercer and the profit margin of products has gradually narrowed. Enterprises on the basis of self-supporting raw materials, should accelerate the construction of downstream products of epoxy resin, the formation of integrated upstream and downstream production, improve the competitiveness of the device.
Efforts are made to open up foreign markets for epichlorohydrin and participate in international competition. The output of epichlorohydrin in China will be surplus in the next few years. Therefore, in addition to actively expanding domestic demand, we should continue to improve product quality, increase export intensity, and strive to open up foreign markets in order to resolve possible domestic oversupply crisis.
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