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  • Direct reduced iron - Wikipedia

    OverviewProcessHistoryUsesSee also

    Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas or elemental carbon produced from natural gas or coal. Many ores are suitable for direct reduction. Direct reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting point of iron. Reduced iron derives its name from these processes, one example bein

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  • Sponge iron makers ask govt to impose 30% export duty on ...

    7 小时前  Sponge iron makers have urged the government to impose a 30% export duty on pellets, an improvised version of iron ore, which attracts zero duty currently.

  • Makers of sponge iron seek 30% duty on pellet exports ...

    May 22, 2020  Iron ore pellets or lumps are used to make sponge iron. Steel is made using iron ore fines, scrap or sponge iron. “This is to also maintain uniform policy for all types of high-grade iron ore fines,” the Chhattisgarh association said. Iron ore fines are discouraged from being exported and there should be a similar policy for iron ore ...

  • ore for sprong iron making - dapeppone.nl

    Iron Ore: Sedimentary Rock. The primary use of iron ore is in the production of iron Most of the iron produced is then used to make steel Steel is used to make automobiles, locomotives, ships, beams used in buildings, furniture, paper clips, tools, reinforcing rods for concrete, bicycles, and thousands of other items It is the most-used metal ...

  • WELSPUN STEEL LIMITED

    Iron Ore: In sponge iron making, iron ore is reduced in solid state. Unlike in the conventional steel melting processes, the gangue content of iron ore cannot be separated as a slag. Therefore, it becomes imperative to select an ore with a high Fe content and a low gangue content, to optimize yield during steel making.

  • Rotary Kiln - Steel-making Solution Provider

    Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, 500 TPD) Solid state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI). Since DRI is produced by removing oxygen from iron ore, its structure is just like ...

  • Sponge Iron Composition Manufacturing Process - Lloyd's ...

    Sponge iron is also known as Direct Reduced Iron (DRI). Direct reduction, is an alternative route of iron making has been developed to overcome some of these difficulties of conventional blast furnaces. DRI is successfully manufactured through either gas or coal-based technology. Iron ore is reduced in solid state at 800-1050 c either by ...

  • What is Sponge Iron? (with pictures)

    Sometimes known as direct-reduced iron, sponge iron is a product that is produced using iron ore.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 gas source. This type of iron can be produced in several different types of furnaces, including coke or charcoal ovens, blast ...

  • Ore - A Minecraft Package Repository

    A Minecraft Package Repository

  • Coal based Direct Reduction Rotary Kiln Process – IspatGuru

    The metallic iron in this process is produced by the reduction of iron oxide below the fusion temperature of iron ore (1535 deg C) by utilizing carbonaceous material present in the non-coking coal. As the iron ore is in direct contact with the reducing agent throughout the reduction process, it is often termed as direct reduced iron (DRI).

  • Makers of sponge iron seek 30% duty on pellet exports ...

    May 22, 2020  Iron ore pellets or lumps are used to make sponge iron. Steel is made using iron ore fines, scrap or sponge iron. “This is to also maintain uniform policy for all types of high-grade iron ore fines,” the Chhattisgarh association said. Iron ore fines are discouraged from being exported and there should be a similar policy for iron ore ...

  • Chhattisgarh CM urges Centre to make iron ore available at ...

    May 13, 2020  New Delhi, May 13 (PTI) Chhattisgarh Chief Minister Bhupesh Baghel has sought the Centre's immediate intervention to make iron ore available at concessional rate to sponge iron

  • Sponge Iron Composition Manufacturing Process - Lloyd's ...

    Sponge iron is also known as Direct Reduced Iron (DRI). Direct reduction, is an alternative route of iron making has been developed to overcome some of these difficulties of conventional blast furnaces. DRI is successfully manufactured through either gas or coal-based technology. Iron ore is reduced in solid state at 800-1050 c either by ...

  • Rotary Kiln - Steel-making Solution Provider

    Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, 500 TPD) Solid state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI). Since DRI is produced by removing oxygen from iron ore, its structure is just like ...

  • Sponge iron making process - slideshare.net

    Nov 09, 2014  Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 2. IRON ORE • Iron = 65-67 % • SiO2 + Al2O3 = 2-3 % • CaO + MgO = 0,5-1 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 5-18 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical Composition

  • Sponge Iron - an overview ScienceDirect Topics

    DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 800–1200 °C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore lumps, or fines. The reduction takes place using gaseous reductants (CO + H ...

  • India – a steel giant in the making

    Plentiful iron ore India has vast reserves of haematite ore that are chiefly mined in the states of Odisha, Chattisgarh, Jharkhand, Karnataka and Goa. The industry is recovering from mining bans imposed in 2012 for illegal mining that made India a net importer of ore from 2012 to 2015 and led to the enforcement of mining limits across the ...

  • The Making of Iron Steel

    2 Materials Used to make Steel 2.1 Iron Ore Composition Iron very rarely occurs in the earth's surface as a metal. It is widely distributed, combined with oxygen as iron oxides. In fact it is believed that iron makes up about 5% by weight of the earth's crust. Geologists recognise various types of iron ore, classified chiefly according to iron (Fe)

  • Direct Reduced Iron and its Production Processes – IspatGuru

    DR process, DRI, HBI, Iron making. Metallization, reformed natural gas, residual elements, Rotary kiln, Direct Reduced Iron and its Production Processes. Direct reduced iron (DRI) is the product which is produced by the direct reduction of iron ore or other iron bearing materials in the solid state by using non-coking coal or natural gas.

  • Direct Reduction Process - an overview ScienceDirect Topics

    The basis of the direct reduction process is that solid sponge iron is produced by removing oxygen from the ore in a shaft furnace, rotary kiln furnace or fluidised bed. Sponge iron can be produced in the form of Direct Reduced Iron (DRI), Hot Briquetted Iron (HBI) and Cold Briquetted Iron (CBI); also Low Reduced Iron (LRI), which is pre ...

  • SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE

    displayed in the Table 2. Iron ore fines and Anthracite coal fines are subjected to grinding in a small ball mill to produce its powder of less than 150 microns for making pellets. Anthracite coal is mixed in the ratio varying from 3% to 6% by t to iron ore fines for weigh making composite pellet or cylinder along with inorganic binder.

  • Steel making today and tomorrow - Hybrit

    Iron ore in the form of fines is normally processed in sintering plants into sinter, and in some cases in pelletizing plants to iron ore pellets. Iron ore sinter and pellets are then charged together with coke from the top of the blast furnaces. Pulverised coal, oxygen and hot blast air are injected through tuyeres in the lower part of the ...

  • AU557005B2 - Process of making steel by melting sponge ...

    sponge iron making steel Prior art date 1983-01-13 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Ceased Application number AU23252/84A Other versions AU2325284A (en Inventor Detmar Arlt Lothar Formanek

  • sponge iron process

    Jul 29, 2010  In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20%.The mean particle size of iron ore shall be restricted to 11mm in order to achieve uniform Fe metallic of all grain size fraction of the product.

  • SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE

    displayed in the Table 2. Iron ore fines and Anthracite coal fines are subjected to grinding in a small ball mill to produce its powder of less than 150 microns for making pellets. Anthracite coal is mixed in the ratio varying from 3% to 6% by t to iron ore fines for weigh making composite pellet or cylinder along with inorganic binder.

  • Difference Between Sponge Iron and Pig Iron Compare the ...

    Apr 30, 2011  The key difference between sponge iron and pig iron is that we can produce sponge iron by direct reduction of iron ore through reducing agents whereas the production of pig iron is by melting iron ore with charcoal and limestone at very high pressures.. Sponge iron and pig iron are different forms of iron that we can produce from iron ores that occurs naturally under the surface of

  • Steel making today and tomorrow - Hybrit

    Iron ore in the form of fines is normally processed in sintering plants into sinter, and in some cases in pelletizing plants to iron ore pellets. Iron ore sinter and pellets are then charged together with coke from the top of the blast furnaces. Pulverised coal, oxygen and hot blast air are injected through tuyeres in the lower part of the ...

  • iron ore disc mill

    Iron Ore Processing for the Blast Furnace. The mill discharge is screened at 1/4" on trommel screens attached to the mill. Ore smaller than 1/4" is pumped in slurry solution to the wet cobber magnetic separator, which begins the process of separating the iron from the non-iron material. The magnetic iron

  • Sponge iron making full process_Coal base DRI - YouTube

    Dec 24, 2018  Direct reduced iron (DRI), also called sponge iron,[1] is produced from the direct reductionof iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas or elemental carbon ...

  • 作者: Tech Friend's
  • AU557005B2 - Process of making steel by melting sponge ...

    sponge iron making steel Prior art date 1983-01-13 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Ceased Application number AU23252/84A Other versions AU2325284A (en Inventor Detmar Arlt Lothar Formanek

  • Ironmaking 101 – From Ore to Iron with Smelting and Direct ...

    Unlike blast furnace pig iron, the siliceous gangue in the iron ore remains in reduced iron sponge and needs to be removed in the steel-making process. Extractive metallurgists and engineers will continue to invent new ironmaking processes to provide more environmentally friendly, energy efficient and lower-cost iron alloys with improved ...

  • How is Iron Refined from Ore? (with pictures)

    Jun 19, 2020  Iron ore is any rock that contains a usable quantity of iron. Common ore minerals include hematite, magnetite, limonite, and siderite, and these are frequently found together with assorted silicates. Although iron does not occur in its pure form in nature, some kinds of ore contain up to 70% iron atoms. Iron ore consists of oxygen and iron ...

  • sponge iron process

    Jul 29, 2010  In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20%.The mean particle size of iron ore shall be restricted to 11mm in order to achieve uniform Fe metallic of all grain size fraction of the product.

  • Ferrous metallurgy - Wikipedia

    Ferrous metallurgy is the metallurgy of iron and alloys.It began far back in prehistory.The earliest surviving iron artifacts, from the 4th millennium BC in Egypt, were made from meteoritic iron-nickel. It is not known when or where the smelting of iron from ores began, but by the end of the 2nd millennium BC iron was being produced from iron ores from at least Greece to India, and more ...

  • PRAKASH PIPES LIMITED - Manufacturer of Iron Ore Mines ...

    To make its mark in the industry. PIL has ventured into activities that have led the company transform into a cohesive Steel and Power producing unit. For this, Prakash Industries Limited setup Sponge Iron Kilns at Champa (Chattisgarh) in technical collaboration with Lurgi Germany.

  • Xindia Steels

    Reduces coal consumption in spong iron making with lower fines generation. Maintenance cost is low as there is not need for crushing and screening of iron ore lumps. Strength - High and uniform mechanical strength even under thermal stress. Productivity A wholesome 20-25% increse in sponge iron making.

  • Chhattisgarh CM urges Centre to make iron ore available at ...

    May 13, 2020  "Chhattisgarh has an immense resource of various minerals, of which iron-ore is a prime ore. World class iron-ore mines are situated in Dantewada district, where NMDC is operating five commercial mines. There are iron-ore based small and sponge iron plants in various industrial areas of the state, which procures iron-ore from NMDC mines at ...

  • Iron ore - Wikipedia

    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. In 2011 the Financial Times has speculated that iron ore is "more integral to the global economy than any other commodity, except perhaps oil ".

  • sponge iron process

    Jul 29, 2010  In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20%.The mean particle size of iron ore shall be restricted to 11mm in order to achieve uniform Fe metallic of all grain size fraction of the product.

  • Chhattisgarh CM urges Centre to make iron ore available at ...

    May 13, 2020  "Chhattisgarh has an immense resource of various minerals, of which iron-ore is a prime ore. World class iron-ore mines are situated in Dantewada district, where NMDC is operating five commercial mines. There are iron-ore based small and sponge iron plants in various industrial areas of the state, which procures iron-ore from NMDC mines at ...

  • PRAKASH PIPES LIMITED - Manufacturer of Iron Ore Mines ...

    To make its mark in the industry. PIL has ventured into activities that have led the company transform into a cohesive Steel and Power producing unit. For this, Prakash Industries Limited setup Sponge Iron Kilns at Champa (Chattisgarh) in technical collaboration with Lurgi Germany.

  • (PDF) Basic Concepts of Iron and Steel Making

    Mar 15, 2020  Steel cannot be produced directly from the iron ore. Steel is a product obtained by refining or purification of impure iron (i.e. hot metal). So, steelmaking is an oxidation process by which ...

  • Mining iron ore Old School RuneScape Wiki Fandom

    Iron ore is an ore always in demand, due to its use in producing iron and steel bars via Smithing.There are many locations to mine iron ore, but one of the best members' places to mine iron for banking is Ardougne Monastery.It has six iron rocks total that are all very close to each other. Players can teleport there quickly with an Ardougne cloak, which offers infinite teleports, and then ...

  • The Direct Reduction of Iron Ore

    sponge iron, so named because the removal of oxygen from iron ore without melting leaves a honeycomb microstructure that resembles a sponge. The sponge iron was made by putting charcoal and iron ore in a shallow hearth, in which intense heat was built up

  • Xindia Steels

    Reduces coal consumption in spong iron making with lower fines generation. Maintenance cost is low as there is not need for crushing and screening of iron ore lumps. Strength - High and uniform mechanical strength even under thermal stress. Productivity A wholesome 20-25% increse in sponge iron making.

  • How is Iron Refined from Ore? (with pictures)

    Jun 19, 2020  Iron ore is any rock that contains a usable quantity of iron. Common ore minerals include hematite, magnetite, limonite, and siderite, and these are frequently found together with assorted silicates. Although iron does not occur in its pure form in nature, some kinds of ore contain up to 70% iron atoms. Iron ore consists of oxygen and iron ...

  • SPONGE IRON PLANT

    sponge iron, originating from Iron Ore, namely, silica and alumina and the sulphur and phosphorous contents adversely affect the economics in subsequent steel making operation. Therefore, the ore should be high in iron content and low in gangue, Physical Specification – Size - 5-20 mm Oversize -

  • Corex Process in Iron Making - LinkedIn SlideShare

    Dec 02, 2009  Accordingly a Corex plant has shaft unit, where iron ore pellets (with or without some closely sized lump ore) is reduced by gases emanating from the second unit to make hot sponge iron (first stage). This is mechanically transferred to the second unit or Melter-Gasifier where it is melted and carburised (second stage) by injection of both coal ...

  • Iron ore processing (iron making) industry in Indonesia ...

    Free Online Library: Iron ore processing (iron making) industry in Indonesia.(INDUSTRY, Sound recording review) by "Indonesian Commercial Newsletter"; Business Business, international Cast iron Laws, regulations and rules Supply and demand Cast-iron Ferric oxide Foreign investments Hematite Iron industry Buildings and facilities Joint ventures Production processes Iron mining Iron ores Iron ...

  • (PDF) i) Direct Reduced Iron: Production

    This product is known as direct reduced iron (DRI) or sponge iron. Processes that produce iron by reduction of iron ore (in solid state) below the melting point are generally classified as DR ...

  • Sponge iron prices zoom 25%, pig iron up 17% on hike in ...

    The price of steel making intermediaries such as sponge iron and pig iron have seen a sharp upward swing after a recent spurt in rates of iron ore and coal, two key inputs for these products. Sponge iron and pig iron are mostly converted to steel in electric arc or induction furnaces.

  • Direct Reduced Iron (DRI) Production Plant

    Direct Reduced Iron (DRI) Production Plant NIPPON STEEL ENGINEERING CO., LTD. Basic Concept or Summary S-16 u A direct reduced iron (DRI) production plant is a shaft reduction furnace to produce DRI with large metal iron content by directly reducing iron ore (or iron ore pellets) with reducing gases.