Layout of phosphate fertilizer enterprises towards fluorine chemical industry
Fluorine resources are often associated with phosphate rock,and the fluorine mainly exists in the form of fluorapatite.The fluorine released during the production process of wet-process phosphoric acid is absorbed by water and converted into fluorosilicic acid.The recycling or cascade utilization of fluorosilicic acid is currently a hot topic and focus of research in the phosphate fertilizer industry and fluorine chemical industry.It can be used as a raw material for producing anhydrous hydrogen fluoride,which can not only improve the economic benefits of enterprises,but also help solve the problem of fluorite resource shortage in China.Phosphate fertilizer enterprises can develop a fluorine chemical industry chain based on the fluorosilicic acid method to produce anhydrous hydrogen fluoride.They can develop high-end products such as fluorine-containing wet electronic chemicals and fluorine-containing electronic specialty gases,including electronic grade hydrofluoric acid,electronic grade ammonium fluoride,carbon tetrafluoride and boron trifluoride,to increase the added value of products.
phosphate fertilizer enterprisesfluorosilicic acidanhydrous hydrogen fluoridefluorine chemical industry
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