Production of medical-grade high-pressure polyethylene by State Petrochemical reached a record high

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On November 18, within the clean packaging facility of Lanzhou Petrochemical Company, pure white and translucent medical-grade particles were packaged in a sterile environment and sent off to various locations. This year, the company kept up with changes in market demand, flexibly adjusted its product portfolio, and continuously improved the production planning for high-performance polyolefin products. From January to October, the output of LD26D, a high-pressure polyethylene material used in medical applications, increased by 21.8% on a year-on-year basis, reaching a new historical high. The LD26D product developed by Lanzhou Petrochemical features low extraction and low migration properties. It also exhibits excellent transparency and chemical resistance. It is suitable for packaging, capping, and sealing of various pharmaceuticals. As the first polyethylene product for ampoules in China to pass the associated review process, it is highly favored by customers both at home and abroad. Centered around the new blueprint for the company’s transformation and upgrading, the Polyolefins Division has implemented the “industry-university-research-application” model by establishing a specialized team for technical breakthroughs. It has also developed a production plan tailored to each product, assigned clear responsibilities to product line engineers, and conducted in-depth analysis and research on key parameters of the product, such as its melt index and tensile yield stress. At the same time, by focusing on process parameter comparison, technical benchmarking, and performance evaluation, a list of action items was developed to optimize and adjust key parameters such as those related to molecular weight regulators and initiators, to stabilize the temperature of the polymerization reaction, and to ensure precise matching of the extruder’s load and speed, thereby maintaining the consistency of product quality across different batches. Technical personnel in charge of process, equipment, and instrumentation for polyolefin production carry out a \"five-in-one\" joint inspection to ensure comprehensive checks of key equipment, promptly eliminating potential hazards in critical areas, vital links, and hard-to-reach corners, thereby laying the foundation for the efficient and stable operation of the plant. At the same time, a \"Product Feedback Collection Form\" was established, and a technical service team composed of production, quality control, and management staff was formed to respond swiftly to customers’ requests, providing remote or on-site technical support to assist in resolving technical issues encountered in processing and application. This approach facilitates a shift from \"reactive handling\" to \"proactive service\", thereby enhancing customer satisfaction and brand trust.