Physical and chemical process: reduction reaction at high temperature + slagging reaction. The purpose of blast furnace smelting is to reduce iron from iron ore and remove impurities. In the whole smelting process, the most important is the reduction of iron and slagging reaction. In addition, it is accompanied by a series of other complex

Get Price

Sep 27, 2021 The extraction of iron from its ore is the third and the penultimate process in metallurgy, which is the process of separating metals from their ores. The common ores of iron are iron oxides. These oxides can be reduced to iron by heating them with carbon in the form of coke. Heating coal in the absence of air produces coke

Get Price

the ore is smelted, yielding a pig iron con taining reduced elements and a slag con taining all the oxidized and unreduced sub stances. The pig iron is melted and refined in a steelmaking furnace. In this procedure the reduction of iron ore is regarded as an incidental intermediate step, and the reduc

Get Price

DRI production. Direct reduction of iron is the removal of oxygen from iron ore or other iron bearing materials in the solid state, i.e. without melting, as in the blast furnace. The reducing agents are carbon monoxide and hydrogen, coming from reformed natural gas, syngas or coal. Iron ore is used mostly in pellet and/or lumpy form

Get Price

The invention relates to a process for the production of pig iron from iron ore, which is initially reduced to sponge iron in a direct reduction shaft furnace by means of a hot reduction gas and the sponge iron obtained is melted in a melt-down gasifier, accompanied by the supply of a carbon carrier and an oxgen-containing gas and accompanied by the formation of at least part of the reduction gas

Get Price

To reduce iron ore and to produce pig iron the process that is most widely used today is the blast furnace process. The iron ore based steel production is a large source of CO 2 emissions for the iron and steel industry, since almost all of the iron reduction processes are

Get Price

Reduction with hydrogen, in the best case produced via renewable energies, is a future-minded alternative to commonly used fossil fuels. Direct reduction processes, which reduce iron ore to metallic iron without any liquid phase, especially have the possibility to use a high percentage of hydrogen in the reducing gas mixture

Get Price

The Iron making is necessarily a reduction process, as far as the chemical theory is concerned, where reduction of the iron ores takes place to produce metallic iron. • Iron ores: Generally in Oxides: Hematite (Fe 2 O 3), Magnetite (Fe 3 O 4) Mass number (55.85) Density=7.874g/cc Atomic number (26) m.p= 1538 C b.p= 2861 C Fe Iron (Latin

Get Price

The iron ore is often in the form of pellets or lumps, and is subjected to a reduction process that is created by the use of a reducing gas that emits from coal or a natural gassource. This type of iron can be produced in several different types of furnaces, including coke or charcoal ovens, blast furnaces, and basic oxygen furnaces

Get Price

Iron and Steel Manufacturing Industry Description and Practices Steel is manufactured by the chemical reduction of iron ore, using an integrated steel manufac-turing process or a direct reduction process. In the conventional integrated steel manufacturing process, the iron from the blast furnace is con-verted to steel in a basic oxygen furnace

Get Price

Iron nugget can be use to substitute pig iron due to its quality that is comparable to pig iron but lower in price. This research conducted to see the effects of carbon content in producing iron

Get Price

Jun 14, 2011 Iron is extracted from its ore through removal of oxygen, which is a process called its reduction. Another process is through blast furnace where the ore is heated with carbon (coke). Iron thus produced using coke in blast furnaces is called pig iron, while iron produced through direct reduction is called sponge iron

Get Price

Mar 16, 2013 Iron ore is used mostly in pellet and/or lumpy form. Oxygen (O2) is removed from the iron ore by chemical reactions based on H2 and CO for the production of highly metalized DRI. In the direct reduction process, the solid metallic iron (Fe) is obtained directly from solid iron ore without subjecting the ore or the metal to fusion

Get Price

Mar 13, 2010 The iron is reduced from the ore by carbon in the coke, the limestone aiding slag separation from the molten iron. The slag and molten iron are tapped off from the bottom of the furnace, the slag being disposed of and the molten iron being poured into molds were it solidifies, now being in the form of pig iron. The pig iron is loaded into to an

Get Price

Apr 09, 2021 The three main raw materials used to make pig iron (which is the raw material needed to make steel) for primary steel production in a blast furnace are the processed iron ore, coke (residue left after heating coal in the absence of air, generally containing up to 90% carbon) and limestone (CaCO3) or burnt lime (CaO)

Get Price

Pig iron analyses :weigh percent % ; Fe 92.7,C4 Si2,P0.9 and Mn0.4 The coke rate is 900kg/ton of pig iron. (Modern blast furnace operates with much lower coke rate) During smelting 99.5% of Fe is reduced and 0.5% is slagged. The CO/CO2 ratio in the top gas is 2/1 Calculate a) Weight of iron ore

Get Price