Atomic economic response industrialization first success
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On December 28, 2007, seven academicians and experts including Wang Jingkang, Li Zhengming, Li Junxian, and Wu Weizu came to Tianjin Sannong Gold Science and Technology Co., Ltd. to identify the “Atom Economic Response to Production of Highly Effective Drought Resistant Water Retaining Agent†project: The technology has been Achieve the economical reaction of the atom and reached the international advanced level.
The atomic economic response emphasizes not only making full use of each atom involved in the reaction, but also adopting non-toxic and harmless solvents, additives, and catalysts to produce environmentally friendly products that eliminate pollution from the source. Tianjin Sannong Gold Science and Technology Co., Ltd. uses the principle of high-efficiency drought-resistant water-retaining agent production technology to use corn starch or corn flour as the main raw material. Under the action of the initiator, it first generates free radicals in the starch natural polymer skeleton, and then uses ethylene or The propylene monomer is grafted and copolymerized on the free radical. Finally, the grafted copolymer is exothermally self-crosslinked by explosion and condensation, so as to produce a network structure with a three-dimensional space, which is insoluble in water, but can also absorb water, absorb fertilizer, and retain fertilizer. Slow release of water, fertilizer, high-performance drought-resistant water retention agent. Wang Daquan, chairman and secretary general of the Fine Chemicals Professional Committee of the Chinese Chemical Society, said: “This is the first industrialized production technology of atomic economic response realized by Professor Torost of Stanford University after the concept of an atomic economic response was proposed in 1991.â€
It is understood that when domestic and foreign producers of agricultural and forestry anti-drought water-retaining agents are used, organic solvents are used in the polymerization reactions. They are flammable and explosive. The production process requires high temperature and high pressure, which poses great risks to safety and protection, and the products cannot be degraded. Secondary and even chain contamination will occur during use. Academician Wang Jingkang and seven other experts believed that: “Atomic economic response to production of high-efficiency drought and water retention agent projects, using water as a solvent, no cross-linking agent, no nitrogen, the main raw materials were all converted into products, to achieve atomic economic response requirements.â€
At present, the industrial production technology of this atomic economic response has been successfully applied to the industrial scale production of 2,000 tons of high-efficiency drought-resistant water-retaining agent. The production process is normal temperature, atmospheric pressure, energy-saving, and safe. The use process is non-toxic, harmless, and non-polluting. With controlled degradation, it has become a model for China's green high-tech fine chemicals.