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Sponge iron manufacturing process


    The process of sponge iron making aims to remove the oxygen from iron ore. The quality of sponge iron is primarily ascertained by the percentage of metallization (removal of oxygen), which is the ratio of metallic iron to the total iron present in the product. Sponge iron manufacture is highly sensitive to raw material characteristics

  • US3212876A - Method for the production of iron powder

    iron production sponge iron powder Prior art date 1963-04-22 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.) Expired - Lifetime Application number US275794A Inventor Hulthen Sven Ingvar Wahlberg Yngve

  • Energy Audit Methodology of Sponge Iron

    sponge iron manufacturing process or kiln operation with a view to finding out major energy sav-ing potential of the unit. In the research work we find that it is the incomplete reaction of coal that causes the major energy inefficiency in the process. Substantial amount

  • Sponge Iron - Sambhv Steel

    Sambhv’s Direct Reduced Iron (DRI) plant uses coal-based technology for the production of sponge iron. The process includes the de-oxidisation of iron ore below the melting temperature of iron through the direct reduction process using high-grade iron ore and non-coking coal. The material used is iron ores lumps/pellets, Coal and Dolomite


    2. PRODUCTION OF IRON AND STEEL POWDERS 8 2.3 The H gan s Sponge Iron Process The H gan s sponge iron process, is essentially a chemical process in which finely divided iron ore is being reduced with coke breeze yielding a spongy mass of solid metallic iron, which can readily be comminuted to iron powder. The iron ore used at

  • Direct reduced iron - Wikipedia

    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) 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

  • Production Process - Grace Castings

    Production Process Ingots To manufacture Mild Steel Ingots the company purchase M.S. Scrap from open market, imported Scrap from actual importer, Sponge Iron from the manufacturers and these materials, once reach the plant the quality is tested and after getting satisfied, unload the material in the stock yard


    blast furnace. Sponge iron is fed into the electric furnace for steel production or into foundries for the manufacture of wrought iron. Commercial production of sponge iron in India commenced in 19801. Sponge Iron India Limited was the first plant to be set up in the country in 1980 in Paloncha district of Andhra Pradesh with a capacity of

  • Nurturing ‘value-accretive’ growth

    enhancement of sponge iron production by 40,000 MT (i.e., from 4,25,000 MTPA to 4,65,000 MTPA) in the existing facility Paving the way for next-level growth Ushering in a new growth era Value creation is a continuous journey for us that is both exciting and eventful. It takes into account the changing expectations of customers

  • (PDF) i) Direct Reduced Iron: Production - ResearchGate

    Mar 30, 2016 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 | Manufacturer of Sponge Iron

    Sponge iron is used in the iron and steel industry as a substitute for scrap in induction and electrical arc furnaces. Over the years, the shortage of expensive melting scrap has made sponge iron a significant raw material for manufacturing high quality steel

  • Sponge iron Manufacturing process - Simurgh

    Sponge iron is a metal product that is produced by a direct reduction of iron ore in solid-state. Sponge iron is a good alternative to waste and is mainly used in the manufacture of steel via secondary routes. The process of making sponge iron

  • Sponge Iron Production Process - Arij Trading

    Sponge Iron Production Process 1) Midrex process. Miderx's involvement in the direct reduction process can be traced back to the work done by Surface... 2) HYL process (4th generation) or Energiron. The HYL process has undergone quite a number of changes over the past... 3) SL / RN process. This

  • Iron Sponge Process - an overview | ScienceDirect

    The iron sponge process is economically applied to gases containing small amounts of H2 S ( 300 ppm) operating at low to moderate pressures in the range of 50-500 psig (344.7-3447 kPa). This process does not remove CO 2. The reaction of iron oxide and H 2 S produces iron sulfide and water as follows: Fe 2 O 3 + 3 H 2 S → Fe 2 S 3 + 3 H 2 O

  • Sponge iron making process - SlideShare

    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 %... 3. COAL • Fixed Carbon = 45 % • Volatile Matter = 25-30 % • Ash = 20 % • Moisture = 8 % Chemical Composition • Size


    The Rotary Kiln process is a well-established process for production of coal based sponge iron. Rotary kiln of certain dia and length is provided for reduction of Iron Ore into sponge iron using non-coking coal as reductant and Dolomite as sulphur scavenger; however the Diameter and Length are to be designed based on the Plant Capacities

  • Sponge Iron - an overview | ScienceDirect Topics

    Iron oxide ores extracted from the Earth are allowed to absorb carbon by a reduction process. In this natural reduction reaction, as the iron ore is heated with carbon, it results in a pop-marked surface, hence the name “sponge iron.” The commercial process is a solid solution reduction, also called direct-reduced iron (DRI). In this process, the iron ore lumps, pellets, or

  • SPONGE IRON – Lloyd's Metals

    Process. Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled with a ‘select’ grade of iron-coking coal little dolomite inside an inclined rotary kiln and control combusted in the presence of air for about 12 hours before the products are air cooled, magnetically separated, screened and size wise in finished product bunkers prior to dispatch

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