The chemical composition of 65% Fe hematite iron ore is supposed to be as follows: So like scrap the Fe iron content in sponge goes high depending on Fe % in ore. Raw materials:- Following are the key raw materials required for the formation of sponge iron. Iron Ore: The iron ore used is …
Read Moreknown as sponge iron, is produced through solid-state reduction of iron ore to 90% to 94% Fe (about the same iron content as molten pig iron); however, Dri requires special handling owing to its high susceptibility to oxidation. HBI is a higher density, premium quality form of briquetted Dri with lower
Read MoreSome of the sponge iron plants are captive to steel mills, but there is a significant domestic merchant market, India producing 57% of its crude steel in electric arc furnaces (2016). At integrated mini-mills, DRI can be hot charged to the EAF, at temperatures in the region of 650° C, …
Read MoreA. Choudhury 45 2Fe 2O 3 (320) + 6CO (168) = 4Fe (224) + 6CO 2 (264) [2]. The figures in the bracket indicate the weight of the reactants and products. From the above equations we get 72 Kg carbon or 144 Kg coal + 96 Kg O 2 or 417 Kg air + 320 Kg ore reacts to gene rate 224 Kg of sponge iron & 264 Kg of CO 2.Or in other words, to produce 1 Kg of pure sponge iron the stoichiometric requirements ...
Read MoreThe effect of carbon-to-hematite molar ratio has been studied on the reduction efficiency of iron ore-coal composite pellet reduced at 1523 K (1250 °C) for 20 minutes in a laboratory scale multi-layer bed rotary hearth furnace (RHF). Reduced pellets have been characterized through weight loss measurement, estimation of porosity, shrinkage, qualitative and quantitative phase analysis by XRD ...
Read Moreproducts similar to iron ore pellet quality (60% Fe) will be generated. This product will be pelletized or briquetted for BF (blast furnace) feed. Both products offer a quick iron return to the mill. The accurate determination of metallic iron content and total iron content is vital before and after processing of the received by-products.
Read MoreThe great resources of the iron ore and the vast resources of manpower and energy have kept manufacturers' attention focusing on using sponge iron instead of scrap iron. In the direct reduction method, it has been tried for the iron ore oxygen to be almost completely removed before melting.
Read MoreThe iron ore is available in different grades ranging from 50% to above 65% of the iron (Fe) content. Iron Ore Transportation * We offer to different destinations through vessel chartering freight. Iron ore is usually supplied in bulk in big carriers or as per the customer requirements. We are highly capable of shipping thousands of metric ...
Read MoreSponge iron may be passivated against reoxidation by air and water vapor by contacting it with an amine containing from about one to about twelve carbon atoms. The amine contact may be accomplished in the vapor phase by adding the amine to a cooling gas which is employed to cool freshly reduced sponge iron to a safe temperature.
Read MoreThe total 90 million tonnes of iron ore reserves have been estimated. Out of which 73.6 million tonnes of iron ore are in proved category and 16.4 million tones of iron ore reserves are in probable category. The reserves distributed in three main in-situ ore blocks namely East Block, Central Block and West blocks.
Read More(iii) economics of sponge iron and steel production (september, 2008) by steel and natural resources strategy research, vasant kunj, new delhi (iv) iron ore – status and future prospects" by m. s. jairam, director, geological survey of india (v) ibm report, 2009, and provisional figures,
Read MoreWhat are the reactions in the sponge iron process? Detail reaction mechanism of the process is discussed below: There are two reduction reactions. First reaction converts iron ore to iron oxide which further reacts with CO to produce metallic iron (Fe) which is called sponge iron. These two reactions are exothermic in nature.
Read MorePO4 Sponge - Meta High > 5mg/L 80,000 Low . 2 mg/L 25,000 Iron Ore (Hematite) 1,430 Iron Slag 420 Crushed Red Bricks 510 LECA (expanded clay) 800 Activated Fe Alumina 17,100 Filtra-D 2,500 Phostec 7,000 Remove Soluble Phosphorus Drain Tile & Field Runoff Blue-Green Algae blooms represent a nuisance that forms in water when excess nutrients exist.
Read MoreFor sponge iron nes / manganese ore nes For sponge iron nes / manganese ore nes / ferro alloy dust For iron ore nes / ferro alloy dust For iron ore nes 1. BP 520-150 196 8,000 80 2 1.4 - 1.6 32X25X14 20X12 or 32X25X14 12.5 tons 2. BP 650-220 205 11,000 115 5 3.5 - 4 32X25X14 18.5 tons 3. BP 800-380 350 11,000 251 10 7 - 8 38X26X16 37 tons 4. BP ...
Read More2601. Iron Ores And Concentrates, Including Roasted Iron Pyrites - Iron Ores And Concentrates, Other Than Roasted Iron Pyrites : 26011130. Iron ore fines (62% fe or more) 06-Jul-2019. Customs Basic Duty: 2.5. Basic Duty Pref:
Read Morelevels for Fe in sedimentary rocks are given by Williamson (1999) as: limestone 0.33%; sandstone 0.98%, shale 4.7%, and banded iron formation 28%. McLennan and Murray (1999) cite average values for river particulates and loess as 4.8% and 2.4% Fe respectively. Iron is a major element in soil with a median value of 2.1% (Rose et al. 1979). It is ...
Read More2.1 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) content (see Table 1 below).
Read Moremetallic iron (Fe) and three types of iron oxides: wustite (FeO), hematite (α-Fe 2 O 3) and magnetite (Fe 3 O 4). It also contains traces of non-ferrous metals, alkaline compounds and oils from the rolling process. A study is made of the reduction of mill scale to sponge iron using coke at different temperatures and times. The reduced samples are
Read Morebeen claimed that iron ore occurring in different mineralogical forms, has been successfully treated with solid fuels like anthracite, bituminous high volatile coals and lignite and sponge iron contain,- ing 96.7 per cent total iron, 94.1 per cent metal-lic iron and a degree …
Read MoreTypically, the Integrated Steel Plants(ISPs) use medium/High grade Iron Ore whereas the Sponge Iron plants require only High Grade iron ore, preferably, with +67% Fe . Lumpy/Fine Ore: Iron Ore is traded in lumps (i.e. sized ore) or in fines. Production/availability of lumps is limited by virtue of the natural occurrence and also because of ...
Read MoreSponge iron has about the same iron content as pig iron, typically 9094% total iron (depending on the quality of the raw ore) as opposed to about 93% for molten pig iron. It is an excellent feedstock for the electric furnaces used by mini mills, allowing them to use lower grades of scrap for the rest of the charge or to produce higher grades of ...
Read MoreThe 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 ...
Read MoreIron 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 …
Read MoreThough India has large reserves of iron ore containing average grade around 58% Fe, but the performance of blast furnaces has been at lower levels in comparison with …
Read MoreIn 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.
Read MoreAn improved method for operating a blast furnace wherein a portion of the charge is prereduced iron ore with a relatively low metallization in the range of 75% to 90% and a relatively high carbon content in the range of 1.5% to 4.5% by weight. The composition of the sponge iron is selected so as to realize an increase in the production of pig iron and a decrease in the consumption of coke ...
Read MoreIron content in the DRI is in two forms. One is in metallic form which is known as metallic iron, Fe M, and the second form is iron present in residual iron oxides. The total iron Fe T in DRI is the sum of these two iron components. Metallic iron is the aggregate quantity of iron, either free or combined with carbon (as cementite) present in DRI.
Read MoreTypical Applications. Iron powder is used in powder metallurgy of iron, steel and in combination with other metals. They are used in great quantities in the automotive industries as well as in ferromagnetism. Pig iron is an alloy containing about 3% carbon with varying amounts of S, Si, Mn, and P. It is hard, brittle, fairly fusible, and is ...
Read MoreSponge Iron Production ... The metallic iron content (Fe 0 ... Reaction behavior of a packed bed consisting of reagent pellets A or iron ore mini pellets B and coal composite iron ore hot ...
Read MoreDirect reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) into 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 ...
Read MoreSizing of the Raw materials also play vital role in sponge iron manufacturing process. The required size of Iron ore, MPS (Mean particle size), its physical properties like T.I., A.I. & chemical properties like Fe (T), LOI, gangue content In Sponge Iron Process, two types of coal are being used such as feed coal and injection coal.
Read MoreSponge Iron, also known as Direct Reduced Iron is produced from Hematite Iron ore (5 to 18 mm size) by removing the oxygen by direct reduction process using non coking coal as the fuel and reducing agent in Rotary Kiln. Sponge iron is rich in Metallic Iron (Pure Iron) with …
Read MoreExamples include sintered iron carbide and 'DRI' ore, which is natural ore with Fe >69% and low levels of specific trace elements suitable as feed to 'direct reduction' smelters. Low-grade ore It was the main supply of iron ore for many centuries of the World's early history of production of iron.The dominant economic iron mineral in low-grade ...
Read MorePOLITICIZE is a leading and pioneering enterprise with the most advanced international level in R&D, manufacturing and selling of large-scale crushing & screening plants,industrial milling equipments and beneficiation plants. All of our equipment have got ISO international quality system certification.
Read More
Tel: 0086-21-58386256
E-mail: [email protected]
Fax: 0086-21-58385887
Add: No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
