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This post was last edited by Desert Fish on 2023-11-19 at 15:22. Looking back at the ten-year development of chemical technology, let’s celebrate the prosperity and strength of modern China. This is just a starting point; more participation will make the discussion more lively. HAICHUAN becomes even better with you here. [Ten Years of Development in Chemical Equipment] – A continuously updated summary thread; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html. Enhance quality awareness and promote high-quality development. ----------------------------------------- N-Methylpyrrolidone, abbreviated as NMP, is a polar aprotic solvent. NMP has the advantages of low toxicity, high boiling point, excellent solvating power, strong selectivity, and good stability. Among them, battery-grade NMP is mainly used in the preparation of lithium-ion battery cathode material pastes and conductive agent pastes, and is widely applied in the lithium-ion battery industry. In addition, NMP can be used in the field of electronic chemicals as a resist remover and a cleaning agent for semiconductor display panels. In polymer synthesis, it serves as a reaction solvent for specialty polymers such as para-aramid, polyphenylene sulfide (PPS), and polyimide (PI). It is also utilized in insulating coatings as well as in other fields such as pharmaceuticals, pesticides, and the petrochemical industry. According to a report from Wanhua Chemical on November 9, the methamine production unit at the company’s facility in Sichuan was successfully brought online in one go recently. This marks the completion of the entire production chain for natural gas-acetylene-BDO-GBL-methamine-NMP, with an annual production capacity of 290,000 tons. Of this, the NMP production capacity is 80,000 tons per year, making it the world’s largest integrated production facility of its kind. This development represents an important step in the company’s efforts to build an ecosystem for battery materials. It is also worth mentioning that at 10:18 on November 4th, the 300,000-ton/year MDI separation unit of Wanhua Chemical (Ningxia) Co., Ltd. successfully produced qualified products, achieving a successful commissioning in one attempt; thus, a world-class MDI separation unit was established in the northwest of the motherland.