A phosphate rock in yunnan province is dark gray in color and contains inorganic carbon source(graphite).The content of P2O5 is 19.50%,the content of MgO is 3.48%,the content of SiO2 is 30.41%.The concentrate P2O5 28.81%can be obtained by the closed-circuit process of one-stage decarbonization flotation,one-stage desilication roughing,one-stage desilication sweetening,one-stage demagnesium flotation and one-stage desilication sweetening,P2O5 recovery rate of 57.75%of the separation index,to achieve the effective recovery of this kind of phosphate rock resources.
关键词
低磷中镁高硅磷矿/磷矿含碳/脱碳浮选
Key words
Low Phosphorus Medium Magnesium High Silicon Phosphate Rock/Phosphate Rock Carbon/Decarbonization Flotation