Green environmental protection into the theme of polyurethane development
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According to Weng Hanyuan, deputy secretary-general and professor-level senior engineer of China Polyurethane Industry Association, the key technology requirements for the “12th Five-Year Plan†mainly include current international frontier polyurethane development technologies, mainly gas phase phosgenation and non-phosgenation isocyanate production technologies. HPPO (hydrogen peroxide direct oxidation) method to produce propylene oxide, water-based or solvent-free polyurethane product development, the development of refined, functional and high-performance polyurethane products, waste recycling technology and other products. He disclosed that several of these technology projects have been adopted by the Ministry of Science and Technology. Through these key technological breakthroughs, at the end of the “Twelfth Five-Year Planâ€, China’s polyurethane industry sought to not only rank first in the world in terms of industry scale, but also the production technology and product quality of important basic raw materials, additives, and major product types were at or near the international level. Level.
According to this plan, at the end of the “Twelfth Five-year Planâ€, China will build 150,000 tons/year of TDI, 10,000 tons of hydrogenated phenylmethane diisocyanate, 3,000 tons/year of IPDI (isophorone diisocyanate), 100,000 tons. The HPPO process produces production units for propylene oxide, 10,000-ton polyurethane foam stabilizers, and non-edible oil polyether polyols, which greatly increase the supply of high-end products and the localization process.
Weng Hanyuan pointed out that currently China's TDI (toluene diisocyanate), ADI (aliphatic diisocyanate) and other isocyanate production technologies are mostly monopolized by foreign companies, and ADI production is almost blank. At the same time, the environmental protection problem of propylene oxide production is serious and the technology is obviously lagging behind. In addition, most of the major additives of polyurethane foam surfactants are imported, and the development of waterborne polyurethane products is backward. Polyether polyols and polyester polyols, DMC (dimethyl carbonate), spandex and other processes and equipment based on renewable resources are used. There is a big gap with foreign countries.
Weng Hanyuan told reporters that complying with the increasingly stringent requirements of the world's energy, resources, and environment, the development of energy-saving emission reduction, resource conservation, and use of alternative resources, as well as safe and environmentally friendly technologies, is the "Twelfth Five-Year" development trend of polyurethane technology. Although China has now become the world’s largest producer and consumer of polyurethanes and has a certain technological foundation, key advanced production technologies and equipment for important raw materials, additives, and products, as well as safety and environmental protection, recycling and other advanced technologies There is a clear gap.