·beneficiation flow sheet to remove alumina Al 2 O 3 and silica SiO 2 from the ore to get iron Fe rich product for steel plants Mineral characterization showed that the main mineral constituents present in the head sample are
·Limonite is a mixture of iron minerals formed after long term weathering oxidation and hydration mainly composed of hematite goethite and argillaceous minerals [11] [12] Meanwhile aluminum and silica minerals are usually finely disseminated in limonite and ferric ion is easily substituted by aluminum in the lattice structure [13] [14] [15]
·Lateritic ore is divided into limonite and saprolite Limonite which has low magnesium silicon oxide and nickel content are usually processed by hydrometallurgy such as high pressure atmospheric leaching HPAL and atmospheric leaching AL The magnesium content in nickel ore is limited to 5 wt% due to the economically acid needs [5
·Limonite Beneficiation Process and Equipment The equipment used to beneficiate limonite using gravity beneficiation is mainly a jig The jigging machine can beneficiate according to the specific gravity difference between limonite and waste rock and finally obtain limonite with a larger specific gravity and waste rock with a smaller specific gravity so as to
·DISCUSSION POSSIBILITY OF THE BENEFICIATION OF LATERITIC NICKEL ORE Ni content was determined by electron probe microanalysis for some min eral species The results indicate an insignificant Ni content in magnetite chromite and unaltered quartz while serpentine opal and limonite are rich in Ni
·The limonite beneficiation equipment at this stage includes jig shaker spiral classifier heavy medium cyclone etc Jig There are two types coarse grained jig and fine grained jig The former is suitable for the particle size range of 10 30mm and the latter is suitable for the particle size range of 0 10mm
·In the beneficiation of limonite gravity beneficiation has obvious advantages but it requires a large amount of water which can not be used in arid this dry water shortage area high intensity magnetic method is the only choice dry high intensity magnetic separator without water but the mineral particle size has clear requirements the particle size
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