【Ten Years of Great Progress in Chemical Technology】The first 10,000-ton-per-year high-temperature resistant nylon PA6T production line came online from 2013 to 2023

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Ten years of rapid development in chemical technology – praise for China’s prosperity and strength. This is just a starting point; more participation from everyone will make things even more lively. HaiChuan becomes even better with you here; we welcome everyone to join in the forum discussions. Be careful with fire as the heat increases in July. ----------------------------------------------January 20, 2022: China’s first production line capable of manufacturing 10,000 tons per year of high-temperature resistant nylon PA6T (polyterephthaloylhexamide) was put into operation at Sanli Benuo Chemical Industry Co., Ltd. in Weifang, Shandong Province. 　　According to Wang Xiaoguang, the company’s chairman, in collaboration with Sichuan University and by utilizing proprietary technology, the company began preparing for the construction of a new PA6T production line with an annual capacity of 10,000 tons in the second half of 2020. During the project implementation, the project team successfully designed and customized various types of equipment, achieving the localization of key polymerization equipment. This addressed issues such as high energy consumption, difficulties in handling mother liquor, problems with product discharge, sticking to vessel walls, and easy carbonization during extrusion, thereby improving the overall yield of reaction products and production efficiency. The production results show that the quality of the products from this production line is comparable to that of foreign manufacturers, allowing for equivalent substitution. 　　Li Guangxian, former executive vice president of Sichuan University and director of the **Key Laboratory of Polymer Materials Engineering, said that this is the largest single-scale facility in China in the PA6T field, representing the highest technical level in this sector in the country at present. Its successful commissioning has raised China’s overall level in the field of high-temperature resistant nylon to a new height. 　　It is understood that the pilot-scale results of this technology have passed the evaluation by the Sichuan Provincial Department of Science and Technology; the evaluation experts considered that this technology has reached an internationally advanced level. The company’s technical experts told reporters that the technical level of this production line is on par with that of foreign companies such as Solvay and BASF. Previously, Sanli Benuo utilized this technology to build a plant with an annual production capacity of 2,000 tons, which was put into operation in May 2020. The products manufactured there have passed tests by international clients such as Otsuka in Japan and Seoyang in South Korea, and are being widely used; their performance meets the standards of similar foreign products, with some aspects even exceeding those standards. 　　He Xiang, executive vice president of the China Synthetic Resins Association, said that the commissioning of Sanli Benuo’s 10,000-ton PA6T production line has not only addressed the issue of whether high-temperature nylon is available in China, but also resolved the question of whether such products are of high quality. Yang Jie, secretary-general of the Special Engineering Plastics Branch of the China Synthetic Resins Association, said that the successful commissioning of Sanlibenuo’s 10,000-ton production line has increased the output of high-quality PPA in China and raised its quality to new levels; the quality of these products now ranks among the best in the world, thereby addressing the bottleneck issues related to high-end PPA in the country. 　　High-temperature resistant nylon is currently the most important type of specialty engineering plastic; it represents an upgraded version of traditional aliphatic nylons, with significantly improved heat resistance compared to those aliphatic nylons. PA6T is currently the variety of high-temperature resistant nylon with the highest production volume and the best cost-performance ratio, and it can be widely used in fields such as electronics and electrical appliances, automobile manufacturing, rail transit, and high-end equipment manufacturing.