"Improving the level of utilization is the key to solving the shortage of phosphorus resource supply in our country." This is the consensus reached by the participating experts at the 30th Phosphate and Compound Fertilizer Industry Annual Conference and the 4th Council of the 8th Session held last week.
Xiu Xuefeng, chairman of the China Phosphate and Compound Fertilizer Industry Association, said that in recent years, the phosphorus chemical industry chain has been further extended in terms of meeting high-end demands such as functional energy storage materials and metal surface treatment. However, due to the lack of abundant phosphorus resources available for commercial use in the world, some phosphorus chemical projects in my country have been put into production in recent years, resulting in a tight supply of phosphorus resources in China, which has caused troubles for enterprises' raw material procurement and production operations. It is expected that this situation will continue will last for a while.
In the face of the current shortage of phosphorus resources, experts participating in the meeting analyzed the entire industry chain and believed that the urgent need for the industry is to improve the efficient utilization of phosphorus resources. At the same time, they also proposed a solution path.
"China's phosphorus chemical industry is in a critical period of sustainable development. Under the goal of 'dual carbon', it is key for the industry to improve the level of green development and efficient utilization of phosphorus resources." Professor Zhong Benhe of Sichuan University believes that the industry must Take a new path, one is to reduce carbon from the source, develop new phosphorus-based fertilizer products, and improve the utilization rate of phosphorus; the other is to realize the efficient utilization of all elements of low- and medium-grade phosphate rocks, and continue to ensure the strategic supply of national phosphorus resources; the third is the phosphorus chemical industry It is necessary to develop towards refinement, specialization, and high-end, and develop phosphorus-based new material products such as phosphorus-based flame retardants, phosphorus-based surfactants, phosphorus-based water treatment agents, and phosphorus-based optical materials; the fourth is to improve the recovery and recycling of phosphorus resources. Utilization level, promote the virtuous circle operation of phosphorus resources.
Professor Wang Xinlong from the Research Center for Comprehensive Utilization of Phosphorus Resources and Clean Processing Engineering of the Ministry of Education of Sichuan University advocated the concept of "protecting agriculture and strengthening industry". He said: "The main battlefield of phosphorus resources is agriculture, and the secondary battlefield is industry. In agriculture, phosphorus resources must be used efficiently. It is recommended that the industry use in-situ processes to solve the problems of synergy between phosphorus and trace elements, regulation of phosphorus forms, organic matter and inorganic In order to solve problems such as synergy between materials and nutrient release regulation, green and intelligent compound fertilizers with better economic performance have been developed. In terms of industry, phosphorus resources must focus on high-value utilization to achieve value-added materials. The industry must break through the process of high-purity phosphorus-based materials and realize Low-cost utilization of phosphorus resources. For example, dilute acid decationization and resource utilization of associated elements, harmless disposal of phosphogypsum, low-cost sulfur-calcium recycling, low-cost phosphate material preparation and other processes.”
In addition, Zhong Benhe also called on the industry to focus on how to bring phosphorus recovery products into the market and partially replace phosphate rock mining in the next step, so as to build a benign phosphorus recovery market system. She believes that my country should continue to make efforts in various links such as phosphate mining, ore dressing, phosphoric acid production, utilization of medium and low-grade phosphate rock, phosphogypsum and phosphorus recovery from tailings, carry out process innovation, and improve the recovery rate of phosphorus resources. At the same time, it is also necessary to strengthen the synergistic effect of all links in the entire life cycle of phosphorus to realize the recycling of phosphorus in an all-round way. (Wang Lijin)
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