The comprehensive set of technologies for the green utilization of phosphogypsum through steam-hot water hydrothermal transformation developed by Liu Guo Chemical has been selected as a \"national-level\" technology”
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LiuGuo Chemical’s integrated technology for the green utilization of phosphogypsum through hydrothermal conversion was included in the national list. On July 25th, the Ministry of Industry and Information Technology released the **Catalogue of Advanced and Applicable Process Technologies and Equipment for the Comprehensive Utilization of Industrial Resources (2025 edition), and LiuGuo Chemical’s integrated technology for the green utilization of phosphogypsum via hydrothermal conversion was successfully included in this catalogue (under the category of comprehensive utilization of industrial solid waste). The *Catalog of Advanced and Suitable Processes, Technologies and Equipment for the Comprehensive Utilization of Industrial Resources* was jointly compiled by the Ministry of Industry and Information Technology, the National Development and Reform Commission, the Ministry of Science and Technology, and the Ministry of Ecology and Environment. Its purpose is to implement the *Solid Waste Pollution Prevention and Control Law of the People’s Republic of China*, accelerate the reduction of industrial solid waste at the source as well as its large-scale and high-value utilization, enhance the comprehensive utilization level of renewable resources, and promote the development of high-end intelligent remanufacturing. The 2025 edition of the catalog includes 96 technical devices, covering four areas: reduction of industrial solid waste, comprehensive utilization of industrial solid waste, recycling of renewable resources, and remanufacturing of mechanical and electrical products. The company’s comprehensive technology for the green utilization of phosphogypsum through hydrothermal conversion utilizes the \"disintegration-catalysis\" process and the \"recrystallization-dual-solidification\" process, thereby enriching the theoretical framework for the removal of mineral crystalline water. It addresses the problems that have plagued the industry for years, such as high energy consumption in the calcination method, large investment requirements for equipment, limited production capacity, and difficulties in achieving continuous operation, thus opening up new avenues for the large-scale utilization of phosphogypsum.
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