【Ten Years of Rapid Development in Chemical Equipment】1482–2024: Domestic production of rotary vacuum filters and granulation towers for 2×240,000-ton BPA production projects

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This post was last edited by Desert Fish on 2024-3-4 at 11:39. Happy New Year 2024 **********************【Ten Years of Development in Chemical Processing Equipment】A continuously updated summary thread – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Chemical Forum) ***************** In February 2024, the rotary vacuum filter and granulation tower used in Hengli Petrochemical (Dalian) New Materials Technology Co., Ltd.’s plant with an annual production capacity of 2×240,000 tons of bisphenol A were successfully put into operation for the first time; the equipment ran smoothly and the product quality met the process requirements. Bisphenol A is one of the most widely used industrial compounds in the world. It plays a significant role in people’s daily lives as well as in industries such as agriculture, manufacturing, aerospace, transportation, and shipbuilding. It is primarily used for insulation in electronic and electrical devices, as automotive parts, in lighting fixtures, medical equipment, window and door glass, and baby bottles. Currently, the main process for producing bisphenol A is Mitsubishi Chemical’s MCC technology. Thanks to its advantages such as a new type of 4PET catalyst, two-stage continuous counter-current crystallization and purification, low operational costs, and high product quality, this technology has gained recognition in China in recent years; Hengli Petrochemical (Dalian) New Materials Technology Co., Ltd. also uses this technology to produce bisphenol A. In the bisphenol A production lines represented by Mitsubishi Chemical’s processes in Japan, vacuum filters are the key equipment in such systems; they function by carrying out solid-liquid separation to remove impurities adhering to the surface of the product crystals, thereby improving the quality of the product. Previously, the rotary vacuum filters used in domestic Bisphenol A production plants based on the \"Mitsubishi method\" were all imported equipment; reliance on foreign technology for such a long time, along with high investment costs and long delivery times, posed various difficulties in the normal operation and maintenance of these plants. To overcome the bottlenecks in the production of bisphenol A using the \"Mitsubishi method\" and to reduce investment costs, the R&D team at Tianhua Institute’s Drying Equipment Research Laboratory, together with Tianhua Institute (Nanjing) Intelligent Manufacturing Co., Ltd., leveraged their technical expertise and experience in the filtration industry. By focusing on optimizing equipment design, improving manufacturing processes, and providing on-site guidance for operation, they were able to successfully address the bottlenecks in bisphenol A production. From nothing to something, through optimization and improvement, to strict control over production and assembly precision, it has been achieved that the equipment operates successfully and smoothly on icy and snowy conditions from the first attempt. Furthermore, the granulation tower, another key piece of equipment used in the bisphenol A production process, was also manufactured by the company for the first time. Facing the challenging conditions of on-site manufacturing, the R&D and manufacturing teams at Tianhua Institute worked together to develop a plan, carefully considering every detail. Under effective on-site management, they made great efforts to accelerate the manufacturing process, and ultimately completed the production of the equipment ahead of schedule, thus ensuring that the plant could start operating as planned. The successful operation of this project serves as a benchmark for Tianhua Institute’s equipment market in the field of new materials, and it also provides technical support for the renovation or construction of bisphenol A plants in China. Going forward, the company’s business expansion in the field of new materials adds another opportunity and choice, further contributing to its high-quality development.