Blending and flotation of low grade high silicon phosphate rock in Dianchi area
To industrialize the utilization of low grade high silicon phosphate rock in the Dianchi area,it is mixed with low silicon high magnesium phosphate rock for flotation.A single reverse flotation process is used to study the effects of blending ratio,grinding fineness,sulfuric acid dosage and YP6 dosage on flotation efficiency.The results show that when low grade high silicon phosphate rock and low silicon high magnesium phosphate rock are mixed at a mass ratio of 1∶6,the grinding fineness≤0.074 mm reaches 93%,the sulfuric acid dosage is 16 kg/t,the YP6 dosage is 3.0 kg/t,and the phosphoric acid dosage is 1.5 kg/t,the mineral processing indicators of concentrate with w(P2O5)of 28.97%,w(MgO)of 0.89%,yield of 81.33%,P2O5 recovery rate of 93.09%,and tailings with w(P2O5)of 9.34%are obtained,providing a new way for the utilization of low grade high silicon phosphate rock.
low grade high silicon phosphate rocklow silicon high magnesium phosphate rockmineral blendingflotationpharmaceutical system
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