After recycling and recycling polyester containers such as discarded Coke bottles, it can be used to produce corrosion-resistant resin materials, manufacture chemical production equipment such as acid-base storage tanks, as well as wastewater treatment vessels and various industrial pipelines. This is Huachang Polymer of East China University of Science and Technology. The 9503-p-benzene resin production technology developed by the company. Last week, I heard from the East China University of Science and Technology that this resource recycling technology has been awarded the national invention patent by the State Intellectual Property Office.
PET polyester is widely used in the fields of beverage bottles, fibers, films, film bases and electrical insulating materials due to its excellent properties. Due to its wide range of uses, this polyester variety has developed rapidly in the world. The current annual production capacity of polyester in China has reached 4 million tons. With the rapid development of the polyester industry, polyester waste will inevitably increase dramatically. If it is not properly recycled, it will not only cause huge waste of resources, but also cause serious environmental pollution.
With more than 30 years of research and development strength and experience, Huachang has launched a solution through technological innovation. They depolymerize PET polyester waste into monomers or other chemicals, and after separation and purification, they are reused as raw materials for producing polyester or other chemical raw materials to realize recycling of resources.
Under the guidance of Qian Jianhua and Professor Liu Zuozhen, the company's scientific research personnel consulted a large number of references and aimed at polyester waste containing terephthalic acid, taking into account its intrinsic value and determining it as the main raw material for the synthesis of benzene. Resin. In this way, the recycling of polyester waste containing terephthalic acid can be used as a measure to save energy and protect the environment, which can reduce production costs, improve product quality, and solve environmental pollution problems.
After thousands of small and medium-scale tests, researchers have finally determined the best process parameters, optimized production formula, and the most suitable catalyst. They use recycled Coke bottles and polyester waste as raw materials, and use their own intellectual property rights technology to produce acid and alkali storage tanks, wastewater treatment vessels, and various industrial pipelines. The sampling test results of Shanghai Chemical Product Quality Supervision and Inspection Center show that the products fully meet the practical application requirements. The project won the second prize of Science and Technology Progress Award of China Industrial Anti-Corrosion Technology Association and was listed as the 2006 national key new product.
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