关键词: 磷肥副产, 氟硅酸, 人造萤石（氟化钙)

Abstract: Fluorite is an important raw material of the fluorine chemical industry，and at the same time，it is also an important strategic resource，which has been widely applied in the key areas，such as military，petrochemical，and electronics.With the natural fluorite ore resources gradually deplete and empty，the research of how to efficiently utilize the associated fluorine resources in the phosphate rock so as to continuously support the healthy development of fluorine and phosphorus chemical industries is urgently to be made.Several calcium fluoride processing methods with phosphate fertilizer by-product fluorosilicic acid as raw material at home and abroad were briefly introduced.At the same time， combining the characteristics of the various methods，the suggestions for comprehensive utilization of fluoride silicon resources in the phosphate fertilizer was proposed. Finally，the application of calcium fluoride in various industries was briefly introduced.

Key words: phosphate fertilizer byproduct, fluorosilicic acid, artificial fluorite（calcium fluoride）