Iron Ore Magnetite The key economic parameters for magnetite ore being economic are the crystallinity of the magnetite, the grade of the iron within the banded iron formation host rock, and the contaminant elements which exist within the magnetite concentrate. The size and strip ratio of most magnetite resources is irrelevant as a banded iron formation can be hundreds of meters thick, extend hundreds of kilometres along strike, and can easily come to more than three billion or more tonnes of contained ore. The typical grade of iron at which a magnetite-bearing banded iron formation becomes economic is roughly 25% iron, which can generally yield a 33% to 40% recovery of magnetite by weight, to produce a concentrate grading in excess of 64% iron by weight. The typical magnetite iron-ore concentrate has less than 0.1% phosphorus, 3â??7% silica and less than 3% aluminium. Currently magnetite iron ore is mined in Middle East,Australia& Canada Magnetite bearing banded iron formation is currently mined extensively in Brazil, which exports significant quantities to Asia, and there is a nascent and large magnetite iron-ore industry in Australia. We can supply Iron ore from lower grade of 40% Fe to 65% Fe. Magnetite is magnetic, and hence easily separated from the gangue minerals and capable of producing a high-grade concentrate with very low levels of impurities The grain size of the magnetite and its degree of commingling with the silica groundmass determine the grind size to which the rock must be comminuted to enable efficient magnetic separation to provide a high purity magnetite concentrate. This determines the energy inputs required to run a milling operation. Mining of banded iron formations involves coarse crushing and screening, followed by rough crushing and fine grinding to comminute the ore to the point where the crystallized magnetite and quartz are fine enough that the quartz is left behind when the resultant powder is passed under a magnetic separator. Generally most magnetite banded iron formation deposits must be ground to between 32 and 45 micrometers in order to produce a low-silica magnetite concentrate. Magnetite concentrate grades are generally in excess of 70% iron by weight and usually are low phosphorus, low aluminium, low titanium and low silica and demand a premium price.
Due to the high density of hematite relative to associated silicate gangue, hematite beneficiation usually involves a combination of beneficiation techniques. One method relies on passing the finely crushed ore over a slurry containing magnetite or other agent such as ferrosilicon which increases its density. When the density of the slurry is properly calibrated, the hematite will sink and the silicate mineral fragments will float and can be removed. We can supply good quantities of Iron ore from India,Middle East and CIS countries.
Particle size - 2 microne density 0.5 Oil absorption -30 Flow point 20 25 kg Paper bag
Mill scales.
Minerals.
Chrome ore lumpy, chrome ore friable.
Precipitated calcium carbonate.
Minerals, coltan, rare earth minerals, tentolites, clays, and minerals, quartz, semi precious stones.
Chrome ore, iron ore, limestone, soap stone, gypsum, rock salt, sulphur lump.
Barium sulfate, calcium carbonate, silica (quartz) granules & power, fine talc, hydrated lime, quicklime, pink salt, bentonite, dolomite powder and chips and china clay.
Ball Clay, Fire Clay, Ceramic China Clay, Ceramic Pocha Clay, Grey Flint Clay, White Flint Clay And Aluminium Ore.
Metals & Minerals, Machinery & Equipments. Food Items, Fruits & Nuts.
Limestone, garnet, stone aggregate, furnace slag, sulphur, ammonium nitrate, urea, nano silica, micro silica, kaolin, clinker, fly ash, ggbfs, coal grit, quick lime, gypsum, silica sand, salt, potassium chloride, calcium chloride, molasses, barite, bentonite, ilmenite, zircon, magnesium oxide, petcoke, diesel..Commodity trading, import, and exports
Cobalt powder, sintered cobalt pelletes.Import and export
Iron ore and steel.
Medical and lab equipment, scientific research equipment, industrial equipment and raw material, chemicals for labs and industries, metals and minerals, scraps hms 1, 2, used rail, copper products and scraps.Trading consulting
Icumsa 45 sugar from brazil (white refined sugar), chicken, soybeans, coffee , corn products, wheat, edible oils, petroleum products, minerals, fertilizer & rice.
I have Gypsum Bentonite Granules for sale. Origin India. Specifications will be given on request.
High Purity Silica Powder produced from white quartz 1.20 MT per Jumbo Bag with Linings and covered with wooden pallets. bottom with rubber pads
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO42H2O. It is widely mined and is used as a fertilizer, and as the main constituent in many forms of plaster, blackboard chalk and wallboard. A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire and the Nottingham alabasters of Medieval England. Mohs scale of mineral hardness, based on scratch hardness comparison, defines hardness value 2 as gypsum. It forms as an evaporite mineral and as a hydration product of anhydrite. Gypsum plays a very important role in controlling the rate of hardening of the cement. During the cement manufacturing Process , upon the Cooling of clinker, a small amount of gypsum is introduced during the final grinding Process . Gypsum is added to control the âsetting of cement.
