The main structure of Inner Mongolia Rongxin Chemical’s 400,000-ton polypropylene plant has been completed

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The main structure of Inner Mongolia Rongxin Chemical’s 400,000-ton polypropylene production facility has been completed; the total investment in this new material project amounts to 9.83 billion yuan! The main structure of Inner Mongolia Rongxin Chemical’s 400,000-ton polypropylene production facility was completed on September 17, 2025. On the afternoon of September 12, after 9 hours of continuous concrete pouring, the pouring of the beam, slab, and column elements of the granule mixing framework for the 400,000-ton/year polypropylene production unit as part of Inner Mongolia Rongxin Chemical Co., Ltd.’s 800,000-ton/year olefins production project was finished, marking the completion of the main structure – three days ahead of schedule. This achievement laid a solid foundation for the efficient installation of equipment and the construction of process pipelines, thereby ensuring timely progress throughout the project. As an important downstream structure in the production process of Inner Mongolia Rongxin polypropylene plant, this pellet mixing frame is designed as a four-story above-ground framework structure, measuring 51 meters in length, 20 meters in width, and 16.15 meters in height. It requires 716 tons of steel reinforcement and 4,747 cubic meters of concrete for construction. Inner Mongolia Rongxin Chemical Co., Ltd. is a coal conversion enterprise under Shandong Energy Group. It established itself in the Dalat Economic Development Zone in 2009; to date, more than 13 billion yuan has been invested there, with the construction and commissioning of a phase 1 project for the production of 900,000 tons per year of methanol from coal, as well as a phase 2 project for the production of 400,000 tons per year of ethylene glycol from coal. The annual 800,000-ton olefin production project of Inner Mongolia Rongxin Chemical Co., Ltd. involves a total investment of 9.83 billion yuan and covers an area of 1,887 mu. It mainly includes the construction of an 800,000-ton/year methanol-to-olefins plant, a 400,000-ton/year polyethylene plant, a 400,000-ton/year polypropylene plant, a 15,000-ton/year 1-butene plant, as well as associated auxiliary facilities. Using methanol as the raw material, the project employs the industry-leading DMTO third-generation technology developed by the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, which significantly improves the conversion rate of the raw material. It reduces the methanol consumption per ton of olefins to 2.66 tons per ton, thereby greatly lowering the production cost per unit of product and enhancing market competitiveness. At the same time, the use of the slurry process for the production of high-density polyethylene, along with the new generation of loop reactor technology for polypropylene production, lays a solid foundation for development in the directions of higher quality, greater diversity, and lower carbon emissions. Next, Inner Mongolia Rongxin Chemical Co., Ltd. will rely on the super-large-scale water-coal slurry gasification platform and take the expansion of the methanol and dimethyl oxalate industrial chains as its main focus. It plans to invest in the production of high-end chemical materials such as POE, polybutylene, PDO, and biodegradable plastics, aiming to raise the production capacity of chemical products to over 4 million tons. The company also aims to expand and upgrade the industrial chain involving methanol, olefins, and high-end materials, transforming regional resource advantages into industrial and economic advantages. This will foster the advanced, diversified, and low-carbon development of the coal chemical industry, help create large-scale industrial clusters, and strive to establish a leading domestic demonstration base for coal-based chemical materials as well as an industry base for the clean and efficient use of energy.