\u0026 nbsp; \u0026 nbsp; \u0026 nbsp; \u0026 nbsp; The key factor of the quality of the quality of polyvinyl chloride products -the purity of the chlorohylene monomer, currently the application of a new type of high -efficiency separation technology in the production process of polyvinyl chloride in the stone method, can be used to from the application of polyvinyl chloride production processes, which can be used. 99.8%increased to more than 99.99%, greatly increasing the value of polyvinyl chloride industrial products. At present, this new technology has passed the results identification and has been successfully adopted by dozens of domestic devices. In the current situation of more than half of the national output in my country, this high -efficiency separation technology has more promotional value. This is the news from the reporter from Beijing Chemical University on February 12.
\u0026 nbsp; \u0026 nbsp; \u0026 nbsp; \u0026 nbsp; In recent years, the continuous rise in international oil prices has greatly increased the production cost of ethylene polyvinyl chloride, and with the introduction of new technologies, the craftsmanship of the electrical polyvinyl chloride has gradually escaped from high pollution The traditional shortcomings of high energy consumption show relative cost advantages. According to the statistics of the China Chlorohydal Industry Association, my country’s electrical stone polyvinyl chloride accounted for more than half of the national output. It is expected that during the future, the stone method is still the main process of Chinese polyvinyl chloride production.
\u0026 nbsp; \u0026 nbsp; \u0026 nbsp; \u0026 nbsp; In the electrone -based polyvinyl chloride process technology, the quality of chlorolythylene monomer has always been a key factor that affects the quality of polyvinyl chloride in the final product, and the effect of chlorolythylene distillation directly affects chlorine chloride Quality of ethylene monomers. Using the traditional spiny -chlorine cricket, the purity of the alleys of chlorine can only reach 99.8%, and due to the structure and material of the refined distillation device, the device is easy to scalar, corrosion leakage during the operation of the device, and the continuous operation time is limited.
\u0026 nbsp; \u0026 nbsp; \u0026 nbsp; \u0026 nbsp; In response to the above problems, Professor Li Qunsheng of the School of Chemical Engineering of Beijing University of Chemical Engineering led the research team to study and develop a new high -efficiency orientation sieve firing tower suitable for ethyl chloride monomer distillation, and it also developed a developed. Compound aperture diameter high -efficiency guide sieve plates and operation methods that are compatible with; the first -time single -set production capacity of 260,000 tons/year high and low boiling distillation tower and high -efficiency ethylene distillation system, so that the acetomo spinning Machine and other low-boiling impurities have dropped to less than 2 × 10-6, and high-boiled impurities such as dichloroethane have dropped to less than 3 × 10-6; The quality of the distillation is more stable and reliable; the development of anti -spontaneous chlorine -chlorine high -efficiency psychic tower is developed to achieve long -term operation of the device, and the production cycle can be up to 2 years. At present, after the application of this new high -efficiency separation technology, after the application of ethylene production process, it greatly improves the quality of ethylene products, reduces the impurities content, and improves the technical level of the entire chlorine chloride.
\u0026 nbsp; \u0026 nbsp; \u0026 nbsp; \u0026 nbsp; industry experts believe that this new set of high -efficiency separation technology can be promoted and applied on the same device of the chlorine chloride in the stone, and it can also provide a reference for the operation of other process industrial devices. Demonstration.