Beijing Research Institute of Chemical Industry’s “60,000 tons/year PBST process package passed group review

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Today (May 25), Beiqing-Beijing Toutiao reporter learned from the Sinopec Information Office that the company's Beijing Research Institute of Chemical Industry has recently made new progress in the field of full-process industrialization development of biodegradable materials. "60,000 tons/year PBST (biodegradable polyester material) production The "Device Technology Package" and "Maleic Anhydride Hydrogenation Catalyst and 20,000 tons/year Maleic Anhydride Hydrogenation to Succinic Acid Complete Technology Package" have passed the review of the Group Company's Department of Science and Technology, and will carry out engineering design of industrial production equipment accordingly, providing key technical support for the large-scale development of biodegradable polyester materials in my country. This marks that Sinopec has formed a complete technology R&D chain and value chain for PBST from raw materials, polymerization technology, material processing and application to analysis and characterization. The 60,000-ton/year PBST production unit process package was jointly developed by Sinopec's Beijing Research Institute of Chemical Industry and the China Textile Science Research Institute. It has the characteristics of high process reaction efficiency, few side reactions, excellent product quality, and low energy consumption. Using this process package, a variety of products such as biodegradable film bag materials, injection molding materials, fiber materials, and foam materials have been developed, providing support for the promotion and application of biodegradable materials. According to Sinopec, as the scale of the biodegradable materials industry increases, problems such as insufficient market capacity and high prices for succinic acid, a key raw material for the production of PBST, have become increasingly prominent, seriously restricting the industrial development of PBST. In order to solve this dilemma, Beihua Institute of Chemical Industry set up a research team and after more than 4 months of independent research and development, successfully developed "maleic anhydride hydrogenation catalyst and 20,000 tons/year maleic anhydride hydrogenation to succinic acid complete technology package." The purity of the succinic acid product produced by applying this technology package exceeds 99.5%, which meets the production requirements of PBST and effectively solves the key raw material supply problem that restricts the development of PBST industrialization. It is reported that this technology has independent intellectual property rights and 13 invention patents have been applied for.