Experimental Study on Iron Recovery by Magnetic Separation from Cyanide Tailings
In order to comprehensively recycle iron from cyanide tailings in a containing gold silver polymetallic oxide ore,an experimental study on iron recovery from cyanide tailings by low intensity magnet-ic separation and high intensity magnetic separation was carried out.The test results show that under the con-dition that the magnetic field intensity of low intensity magnetic roughing is 238.85 kA/m,the magnetic field intensity of low intensity magnetic cleaning is 159.24 kA/m,and the magnetic induction intensity of high in-tensity magnetic separation of low intensity magnetic roughing tailings is 1 200 mT,the low intensity mag-netic iron concentrate with total iron grade of 64.08%and iron recovery rate of 21.11%and the high intensity magnetic iron concentrate with total iron grade of 45.81%and iron recovery rate of 40.31%are obtained by low intensity magnetic-high intensity magnetic separation process.The comprehensive total iron recovery rate is 61.42%,which achieves the purpose of comprehensive recovery and utilization of iron resources.
cyanide slagiron mineralslimonitelow intensity magnetic separationhigh gradient magnetic separation
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