Guan Qingjun, Wang Zhuang, Zhou Fujia, Yu Weijian, Yin Zhigang, Zhang Zhenyue, Chi Ru'an, Zhou Juncheng
School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
Hunan Province Key Laboratory of Coal Resources Clean-Utilization and Mine Environment Protection, Xiangtan 411201, China.
Materials (Basel). 2024 Apr 28;17(9):2067. doi: 10.3390/ma17092067.
Phosphogypsum (PG), a byproduct during the phosphoric acid production process, also known as the wet process, contains complex and diverse impurities, resulting in low utilization and considerable accumulation. This leads to a massive waste of land resources and a series of environmental pollution problems. Given the current urgent ecological and environmental situation, developing impurity removal processes with low energy consumption and high efficiency, exploring valuable resource recovery, preparing high value-added PG products, and broadening the comprehensive utilization ways of PG are significant strategies to promote the sustainable consumption of PG and sustainable development of the phosphorus chemical industry. This review comprehensively summarizes the advantages and disadvantages of existing PG impurity removal and utilization technologies and probes into the future development direction, which provides references and ideas for subsequent PG research.
磷石膏(PG)是磷酸生产过程中的副产品,也称为湿法,含有复杂多样的杂质,导致利用率低且积累量大。这造成了土地资源的大量浪费以及一系列环境污染问题。鉴于当前紧迫的生态环境形势,开发低能耗、高效率的除杂工艺,探索有价资源回收,制备高附加值的磷石膏产品,拓宽磷石膏的综合利用途径,是促进磷石膏可持续消费和磷化工可持续发展的重要策略。本文综述全面总结了现有磷石膏除杂与利用技术的优缺点,并探讨了未来的发展方向,为后续磷石膏研究提供参考和思路。