[Ten years of major development in chemical technology] 289-2023 Trial production of the world's largest single caprolactone engineering production unit of 50,000 tons

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The largest single set in the world! The 50,000-ton green biodegradable material project was put into operation on November 8, Hunan Juren announced: Recently, there was news of successful trial production of a 50,000-ton/year green biodegradable material caprolactone plant. It is understood that this device is the largest caprolactone engineering production device with the best technical and economic indicators in the world. Project Overview Hunan Juren Chemical New Material Technology Co., Ltd. invested 1.2 billion yuan and adopted * * Indirect oxidation to caprolactone production process, new 50,000 tons/year green biodegradable material caprolactone construction project. The product plan is: 50,000 tons/year caprolactone and 60,000 tons/year polycaprolactone series products. After the project is completed and put into production, it will alleviate domestic demand for caprolactone monomer, open up a broad market for the application of polycaprolactone fully biodegradable materials, and increase the company's product market share and corporate economic benefits. It is expected to achieve annual sales revenue of 1.75 billion yuan and generate tax revenue of 150 million yuan. Caprolactone, also known as ε-caprolactone, has good chemical compatibility and can dissolve various insoluble organic substances. It can be used as a high-quality hyperdispersant and pharmaceutical intermediate. However, due to the difficulty of the preparation process, only a few chemical companies in the world have mastered the technology to produce ε-caprolactone.: foreign production enterprises: Domestic production companies such as BASF in Germany, Ingevit from the United States, and Daicel from Japan: Hunan Juren, Baling Petrochemical, Nantong Acetic Acid Chemical Co., Ltd., Anhui Red Sun New Materials Co., Ltd., and Anhui Zhuorun New Environmentally Friendly Materials Co., Ltd. ε-caprolactone is the main raw material for the production of polycaprolactone degradable materials (PCL) and polycaprolactone polyol (PCL polyol). Different from the low value-added downstream applications of other biodegradable materials, PCL has broad market prospects in the fields of medical implants, drug carriers, and 3D printing due to its unique properties. ； PCL polyol is also one of the key raw materials for the currently popular TPU car clothing. Therefore, the large-scale production of ε-caprolactone is expected to produce huge economic effects.