【Ten Years of Great Progress in Chemical Technology】From 2027 to 2023, the technology for comprehensively utilizing gasification slag to produce rock wool has reached international leadership levels

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Looking at the development of chemical engineering technology over the past decade, we celebrate the prosperity and strength of modern China. This is just a starting point to encourage further discussion among everyone; with your participation, things will become even more interesting. [Ten Years of Progress in Chemical Engineering Equipment] – Regular updates and summaries are available; feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html. It’s important to enhance quality awareness and promote high-quality development. -----------------------------------------On October 7, 2023, the China Circular Economy Association held a meeting to evaluate the technological achievement related to the “technology for producing rock wool through comprehensive utilization of gasification slag”, as proposed by Beijing Kelikeying Technology Co., Ltd. The evaluation expert group consists of 5 experts, including Chen Yong, an academician of the Chinese Academy of Engineering, from the Guangzhou Institute of Energy, Chinese Academy of Sciences. Representatives from the Science and Technology Standards Department, the Hazardous Waste Special Committee of the China Circular Economy Association, as well as the management of Beijing Kelikeying Technology Co., Ltd. attended the meeting. The meeting was chaired by Guan Shihui, the deputy secretary-general of the association. The project company gave a presentation on the technology for producing rock wool through the comprehensive utilization of gasification slag, as well as its industrialization. This technology addresses the long-standing issue in the coal chemical industry of the difficulty in utilizing gasification slag on a large scale and to high value. It proposes a technical approach for producing rock wool from gasification slag, overcoming key technologies such as process flow design, plasma-assisted melting techniques, process formula development, and the integration of process equipment, thereby creating a complete and practical engineering solution for producing rock wool from gasification slag. This technology has been applied in practice in projects, opening up a new path for large-scale and high-value comprehensive utilization of coal gasification slag resources in China. The expert group listened carefully to the technical presentations, reviewed documents such as the outcome research report, test reports, and information on usage, and conducted inquiries, answered questions, and held discussions. The expert group believes that this technology and its achievements have broken through the limitations of current technologies for the comprehensive utilization of gasification slag, such as the use of only certain components of the slag in combustion, sorting, and decarburization processes. It has overcome the technical barriers associated with secondary pollution from wastewater and ash. By reconfiguring the chemical composition and phase structure of gasification slag, it is possible to use this slag as a substitute for natural basalt ore in the production of rock wool. This project innovatively developed the process and equipment for producing rock wool from coal gasification slag, overcoming key technologies such as plasma-assisted melting techniques and process formulations. It established complete and practical theoretical calculation methods, analysis approaches, and engineering techniques for producing rock wool from coal gasification slag, enabling industrial-scale production while possessing full independent intellectual property rights. According to the unanimous judgment of the expert group, the overall technology of this achievement has reached the international leading level.