Abstract:
Phosphogypsum is a by-product originated from wet-process phosphoric acid, which contains some impurities such as soluble phosphorus, soluble fluorine, some salts, heavy metals and organic compounds, which lead to difficulty to be used. Jillion phosphogypsum accumulated not only occupies land, pollutes the circ。umjacent atmosphere and water and soil, destroys ecological environment, but also seriously hinders the sustainable development of phosphorus chemical industry. Therefore it is urgently needed to develop and vigorously promote minimization and resource utilization of phosphogypsum. The production, discharge and distribution of phosphogypsum in China were introduced. The utilization ways, utilization quantity and utilization ratio of phosphogypsum in recent years were analyzed. The applied research, resource utilization and industrial development of phosphogypsum in the fields of cement, building materials, agriculture and chemical industry were discussed. The future development direction of resource comprehensive utilization of phosphogypsum were proapected.