Iron Ore – Pellets

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Iron Ore – Pellets

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Iron Ore Earth’s most important iron ore deposits are found in sedimentary rocks. They formed from chemical reactions that combined iron and oxygen in marine and fresh waters. The two most important minerals in these deposits are iron oxides: hematite (Fe2O3) and magnetite (Fe3O4). These iron ores have been mined to produce almost every iron and steel object that we use today – from paper clips to automobiles to the steel beams in skyscrapers.

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Description

Iron ores are rocks and minerals from which metallic iron can be economically extracted.

The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red.

The iron itself is usually found in the form of magnetite (Fe3O4,72.4%Fe), hematite (Fe2O3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H2O), 55% Fe) or siderite (FeCO3, 48.2% Fe).

Ores containing very high quantities of hematite or magnetite (greater than about 60% iron) are known as “natural ore” or “direct shipping ore”, meaning they can be fed directly into iron-making blast furnaces. Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel—98% of the mined iron ore is used to make steel. Indeed, it has been argued that iron ore is “more integral to the global economy than any other commodity, except perhaps oil”.

 

Iron ore pellets are spheres of typically 6–16 mm (0.24–0.63 in) to be used as raw material for blast furnaces. They typically contain 64%-72% Fe and various additional material adjusting the chemical composition and the metallurgic properties of the pellets.

Typically limestonedolomite and olivine is added and Bentonite is used as binder.

The process of pelletizing combines mixing of the raw material, forming the pellet and a thermal treatment baking the soft raw pellet to hard spheres. The raw material is rolled into a ball, then fired in a kiln or in travelling grate to sinter the particles into a hard sphere.

The configuration of iron ore pellets as packed spheres in the blast furnace allows air to flow between the pellets, decreasing the resistance to the air that flows up through the layers of material during the smelting. The configuration of iron ore powder in a blast furnace is more tightly-packed and restricts the air flow. This is the reason that iron ore is preferred in the form of pellets rather than in the form of finer particles.

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Weight 2.000.000.000 kg
Iron Ore

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No.DateDelivery TermTax (9%)GradeSizePrice( USD )Chart
111-Mar to 17-MarCFR China (From India)Not IncludeFe 63.5 %6-20116
211-Mar to 17-MarCFR IndiaNot IncludeFe 64%6-20121
311-Mar to 17-MarCFR China (from Brazil)Not IncludeFe 65%6-2024
411-Mar to 17-MarFOB IndiaNot IncludeFe 64%6-20106

ElementResult(WT%)Remark
Fe(Total)65-66Min-Max
Feo1Max
Sio22.5Max
Al2o31Max
P0.1Max
S0.01Max