工业固废磷石膏综合治理现状及对策OA

The composition and properties of phosphogypsum and the crystal morphology formed under different wet-process phosphoric acid production processes are summarized in this paper.The strategies of controlling the output of phosphogypsum,harmless treatment of impurities and comprehensive utilization of phosphogypsum and its impurities are put forward.In particular,the importance of optimizing parameters in phosphoric acid production process to reduce the production of phosphogypsum and improving the purity and utilization value of phosphogypsum through various impurity removal technologies are emphasized.Further research and planning are necessary to achieve reduction,harmlessness and resource utilization of phosphogypsum and promote the sustainable development of phosphorus chemical industry.