【Ten Years of Rapid Development in Chemical Equipment】By 2024, China’s first facility capable of producing 10,000 tons per year of calcium sulfate whiskers from carbide slag was put into operation

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Safety first. Prevention first – let’s give praise and support to the achievements in China’s chemical engineering technology and equipment. **********************【Ten Years of Rapid Development in Chemical Engineering Equipment】Regular updates and summaries are available; feel free to join the discussions at https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Chemical Industry Forum) ***************** China’s first plant capable of producing 10,000 tons per year of calcium sulfate whiskers from carbide slag has been put into operation. June 11, 2024: At 2:48 p.m. on June 10, Henan Kaixiang Chemical Co., Ltd.’s plant, which is capable of producing 10,000 tons per year of calcium sulfate whiskers from carbide slag, successfully completed the entire production process and produced qualified products, marking the official operation of China’s first such facility. It is reported that work on this project began in July 2022, mechanical construction was completed in December 2023, trial production started on May 17, 2024, and the entire production process was finalized with the production of qualified products by June 10. At present, the main performance indicators of these products, such as calcium sulfate content and whiteness, have met the relevant group standards. The project uses calcium carbide slag, a solid waste generated during the production of 1,4-butanediol by enterprises, as raw material, and employs a mature hydrothermal synthesis method combined with a crystallization process to produce calcium sulfate whisker products. The project falls under the category of initiatives aimed at promoting sustainability, resource utilization, and circular economy principles. Its implementation helps enterprises eliminate potential safety and environmental hazards associated with the storage, transportation, and disposal of solid waste. At the same time, it enables the expansion of existing industrial and product chains, thereby achieving a true balance between economic benefits and environmental sustainability. It is understood that calcium sulfate whiskers combine the advantages of both reinforcing fibers and ultra-fine inorganic fillers; they are widely used in fields such as friction materials, plastics, rubber, papermaking, coatings, and paints, offering broad market application prospects.