The independent research and development of polyurethane elastomer technology made a breakthrough on the eve of the National Day: The world's largest polyurethane elastomer cross-linked chain extender project - annual output of 10,000 tons of 3,3 '-dichloro-4,4'- The aminodiphenylmethane (MOCA) production line, which officially produced finished products on September 27. This project is one of the key projects in the field of polyurethane elastomer during the “12th Five-Year Plan†period, and it is also the first project to be put into production in the “12th Five-Year Plan†period in this field, which is important for upgrading the independent innovation level of the polyurethane industry in China. Leading role.
According to Zhou Jian, chairman and general manager of Jiangsu Xiangyuan Chemical Co., Ltd., which is responsible for the project, the project's production technology and equipment are all independent research and development, and it is at the leading level in the world, and the product purity is also the highest in the industry. Among them, the annual output of 20,000 tons of o-chloroaniline (OCA) project uses atmospheric tower-type continuous liquid-phase hydrogenation technology, high yield, low cost; "three wastes" emission reduction compared to the usual iron powder reduction by more than 95%, Equipment investment and energy consumption are higher. The temperature-gas hydrogenation or high-pressure liquid-phase hydrogenation methods are significantly reduced. At the same time, the MOCA device adopts continuous production equipment, from the metering and feeding of raw materials to the granulation and packaging of finished products, and realizes full-automatic operation production, which has changed the previous MOCA production without continuity. The hydrogen required for hydrogenation adopts an independently researched and developed methanol catalytic combustion heating and reforming hydrogen production technology, completely abandoning the traditional heating process through the thermal oil.
China's polyurethane industry deputy secretary-general Lv Guo believes that at present, the scale of production and consumption of polyurethane products in China ranks first in the world and will maintain a relatively high growth trend during the "12th Five-Year Plan" period. However, the weak capability of independent innovation is a prominent issue facing the polyurethane industry. The production of polyurethane products has long depended on imported raw materials and additives. Lv said that during the “12th Five-Year Plan†period, the entire industry will focus on breakthroughs in a series of key technologies, so that the production technology and product quality of important basic raw materials, additives, and main types of products will reach international standards. The 10,000-ton MOCA project is a key project. one. At the same time, the application scale of new chain extenders (such as M-CDEA, E-100, HER, and HQEE) will also be vigorously promoted.
It is understood that polyurethane elastomers account for only 15% of the entire polyurethane industry, but its variety, wide range of applications, technology-intensive products. MOCA is the crosslinked chain extender with the largest amount of application in the field of polyurethane elastomers. Before the project was put into production, the global annual capacity of crosslinked chain extenders was less than 20,000 tons, and the annual production capacity of individual companies was below 10,000 tons. In 2010, the total output of polyurethane elastomers in China was 647,000 tons. It is expected that the demand in 2015 will reach more than 1.1 million tons, and the demand for cross-linked chain extenders will have huge room for growth.
News Links China's polyurethane industry has developed rapidly. Polyurethane products are widely used, with a wide variety of products and new products are continuously developed.
As one of the important auxiliary agents for polyurethane, the amount of cross-linking chain extenders has been continuously increasing, and the variety has been increasing. Now it has developed into a new type of fine chemical products and has attracted the attention of the industry. MOCA cross-linked chain extenders have the ability to absorb moisture, and are easily soluble in acetone, tetrahydrofuran, dimethylformamide solvent, soluble in ethanol, benzene, toluene. Cross-linked chain extenders have been extremely important chain extenders in the production of polyurethanes, especially polyurethane rubber, coatings, etc., which can improve the overall performance of polyurethane products, improve the production process, improve the product pass rate and production efficiency.
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