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| EXPERIMENTAL STUDY ON SEPARATION OF MAGNETITE IN THE MAGNETIC AND BUOYANT FORCE FIELD |
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| DOI： |
| KeyWord:Magnetite,Magnetic flotation,Iron concentrate,Pulse magnetic field |
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| Abstract: |
| In this paper,recent development of new separation equipment for magnetite is outlined and the influence factors to the quality of magnetite concentrate are studied.On the basis of above-mentioned work,a magnetic flotation device has been developed.The experiments on magnetite separation in magnetic and buoyant force fields show that the magnetic field of the device can prevent magnetic minerals from entering flotation foam,thus improving recovery rate,and the pulse magnetic field can decrease non-magnetic inclusion caused by magnetic agglomeration,thus raising the grade of iron concentrate. After once-through reserve flotation of gangue minerals is made under certain magnetic field condition and reagent-feed system,the grade of iron concentrate has been increased from TFe 65.43% to TFe 69% and the recovery is not lower than 95%,which are higher than the metallurgical performances resulted from single magnetic separation or single common flotation. |
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