China's development of the industry process of nylon 66 – Nylon development
Nylon Pipe HC plastic mesh China started the production of nylon 66, the mid 60s. In 1964, the original Shanghai Liao Chemical industry Factory built China's first nylon 66 salt production plant, annual production capacity of only 600 tons. Mature production technology and production as too small, he will be discontinued. Liaoyang, 1973 Oil Chemical fiber company to introduce the French Rhone? Planck's nylon 66 production technology, built a set of annual production capacity 46,000 tons of production equipment. "Eighth Five-Year" period, China's demand for nylon 66 salt has reached 100,000 tons, while production of nylon 66 salt companies only Liaoyang one, can not meet market demand. Countries spend a lot of foreign exchange to import each year 66, only God, a manufacturer of Nylon Tyre Cord Fabric Horse Group, nylon 66 salt each year 50 million U.S. dollars on the foreign exchange required. Determined based on the original Ministry of Chemical Industry Development Plan, to 2000, China's caprolactam and nylon 66 salt of the demand will reach 370,000 tons, which is 160 thousand tons of nylon 66 salt. In 1994, China ratified Shenma Nylon 66 Salt Project. The project to introduce the Japanese company Asahi Kasei technology semi-benzene, an annual output of 65,000 tons of nylon 66 salt (the actual annual production capacity of 60,000 tons). The project put into operation at the end of 1998, annual production reached 4.8775 million tons in 1999, plans to produce 60,000 tons in 2000. Shenma nylon 66 salt works put into production, so our ability to expand the annual production of nylon 66 salt, 10 tons, but still can not meet the market demand.
According to the survey, production of fiber in 1999 120,700 tons of nylon 66 salt, polymer with nylon 66 salt 31,200 tons, total demand for 151,900 tons. According to customs to incomplete statistics, in January 1999 on China's imports of nylon 66 -6 9495.4 tons of salt. Nylon 66 resin mainly used in fiber (silk industry, civil silk, BCF carpet yarn) production, Engineering Plastics And plastic alloy production. China Engineering Plastics Industry Association, according to market research reports, in 1999 the production capacity of nylon 66 resin, 23,300 tons, output of 10,000 tons, 12,700 tons demand. Among them, the fiber production requires 07,000 tons of nylon 66 resin, engineering plastics production requires 05,650 tons.
Nylon 66 salt production process is very complicated, with benzene as the main raw material, through a series of chemical reactions, and finally produce nylon 66 salt. Therefore, production of nylon 66 is a technology-intensive, capital-intensive, personnel-intensive industries. Shenma Group's production of nylon 66 salt from 8 sets of devices composed by four kinds of raw materials, machinery equipment, 2313 sets, 1965 sets Electric Equipment, 8174 sets instrumentation, process pipeline 368 km, 28 in the world the latest patented technology 90, the final production of nylon 66 salts and nylon 66 resin. The total investment is 2.68277 billion yuan, tons of production capacity investment of 41,273 yuan.
Present, China still has not developed nylon 66 production technology, there are only two manufacturers of the technologies are imported. Nylon 66 production technology, production scale mainly in the United States, Japan, Germany a few Economy The hands of big powers. In view of technical, financial factors, in the "Ninth Five-Year" to "15" None of the new nylon 66 construction projects. The production of nylon 66 in China developed slowly for a long time and God will keep Liao Ma group of two production plants in the situation, the annual production capacity will remain at 100,000 tons. In the coming period, while demand for nylon 66 and its production stands in sharp contrast to the situation, showing a good momentum of rapid development. In 1998, the country's industrial policy has been published 66 and nylon products, engineering plastics and plastic alloys included in the focus on the development directory. January 2000, Henan Province, will be the production of nylon 66 as the first priority to support the industrial restructuring and growth products. As China's chemical fiber, machinery, Electronic , Instruments, meters and other fields of development, and nylon 66 will be applied to a wider area, particularly the rapid development of China's engineering plastics, nylon 66, the development of a good space. China Engineering Plastics Industry Association, according to market research reports, China's engineering plastics are based on an average growth rate of the rapid growth rate of 25%. Among them, nylon engineering plastics annual growth rate of 30.2%. In addition, imports from customs statistics also show strong growth market of nylon resin. First half of 1999, imports of plastic resins imports of chemical products is still among the first few. Among them, the highest increase in imports of varieties is the first nylon resin, an increase of 65% of its imports, import volume of 18,000 tons. Nylon 66 resin imported only on the projected 12,700 tons more than the market demand. This gratifying picture, indicating that nylon 66 resin, rapid growth rate will be higher.
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