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reduction of iron ore sl rn

  • Rotary Kilns | ScienceDirect

    We start with the cement and lime processes and then move on to describe some of the carbothermic reduction processes that employ the rotary kiln as the primary device where we examine two processes, iron ore reduction (the SL/RN (acronym for steel-making companies Stelco, Lurgi, and Republic National) process) and ilmenite ore reduction (the ...

  • SL - RN (Iron Making Rotary Kiln Process for DRI Production)

    Oct 31, 2015· SL - RN (Iron Making Rotary Kiln Process for DRI Production) Ferrous Metallurgy. ... The New Iron Age Part 2 - Balancing Global Metallics Supply and Demand - Duration: ... Iron Ore …

  • Direct Reduced Iron | Industrial Efficiency Technology ...

    Direct Reduced Iron (DRI), also known as Sponge Iron, offers an alternative steel production route to BF-BOF and Scrap-EAF routes. In DRI, iron ore is reduced in its solid state – unlike BF process where a liquid metal is formed during reduction.

  • Prospects for Coal-based Direct Reduction Process

    The reduction reaction kinematic for conventional pellets and sintered ore is controlled by reduction gas diffusion from outside. On the other hand, the reaction of carbon composite agglomerates occurs inside the agglomerates themselves, which consist of iron ore fines and pulverized coal. Once the agglomerates are heated, carbon monoxide is

  • direct reduction ores - residencesantagata.it

    Direct reduction of iron ore | Outotec. Outotec SL/RN rotary kiln direct reduction technology has been used for over 40 years to produce direct reduced iron (DRI) from lump ores and/or iron ore pellets. Direct and smelting reduction | Outotec.

  • Our Process | UMCIL

    The mining of the Sanje Hill iron ore initially through the mountaintop mining and then open pit mining for the sub-surface deposit. The SL/RN coal-based direct reduction process for the conversion of iron oxide ore with coal around 1000 degrees C into sponge iron or direct reduced iron (DRI);

  • Mini Blast Furnace | Blast Furnace | Steelmaking

    HYL) Rotary Kiln DR processes (SL/RN. the Blast furnace route of iron making had about 97% (527mt) share of global iron production. as revealed by one recent global iron production data.7% of total iron production in 1990 .1991.4%. Since then many other alternative processes of iron making have arisen e.. The Mini Blast Furnace (MBF) is the ...

  • sponge iron process

    Jul 29, 2010· All the major sponge iron processes like SL/RN, ACCAR, CODIR,TDR,HYL and MIDREX have been adopted successfully with our raw materials and local conditions ... IS 11093: 1991 Iron ore lumps for direct reduction process. IS 11284: 1985 Rotary tube test for iron bearing materials for the manufacture of sponge iron/direct reduced iron(DRI).

  • SL/RN Process | Industrial Efficiency Technology & Measures

    The so-called Stelco-Lurgi/Republic Steel-National Lead (SL/RN) process is a widely used coal-based DRI-making process which uses a rotary kiln. The process uses lump ore, pellets, beach sand or ilmenite ore and solid carbon to produce hot or cold DRI. The process operates at high temperature and atmospheric pressure.

  • Characterisation of the Physical and Metallurgical ...

    Among the numerous processes for direct reduction of iron ore, the Midrex and HYL III (by means of gas) and the SL/RN (rotary Kiln; by means of coal reduction) have had the most successful industrial implementation [13, 18, 19].

  • Direct-reduced iron - urm-company.com

    This explains why the production of direct-reduced iron is mainly concentrated in countries with large reserves of oil (oilwell gas), natural gas and iron ore, as well as limited scrap resources. Such plants are concentrated in Latin America, the Near and Middle East.

  • The Saga of New Zealand Steel contd

    In November 1964 the consultants recommended that the SL/RN (Stelco-Lurgi/Republic Steel-National Lead) process, not previously considered, was likely to be the most economic method for ore reduction.

  • Energy efficiency in steelmaking Evaluation of the ...

    • State of the art technology and penetration of iron production with DR and SR processes • Boundary conditions and requirements for the DR and SR processes

  • Ironmaking Alternatives Screening - US Department of Energy

    Of the Alternative Direct Iron Reduction Processes, 67% of the DRI is produced by the Midrex Shaft Furnace DRI processes. The second-most production of DRI (23%) is by the HYLSA processes. The balance is split between SL/RN (3%), Finmet (2%) and Other (predominately Corex at 5%).

  • SL/RN process - Outotec

    The SL/RN process was developed in the early 1960s by Outotec in collaboration with three US companies. The process principles are the basis for numerous rotary kiln plants and still represent the dominant technology for the direct reduction of lump ore or pellets using coal.

  • china group for reduction iron ore slrn

    Jun 29, 2017· Jul 29, slrn process sponge iron. china group for reduction iron ore sl/rn. process of sponge iron production power point animation. china group for reduction iron ore slrn The direct reduction process uses pelletized iron ore or natural quot;lumpquot; ore. Live Chat.

  • New Ironmaking Processes: Relevance to India - IIM

    New Ironmaking Processes: Relevance to India Dr B B Agrawal and A S Mathur R & D Centre for Iron & Steel Steel Authority of India Ltd. ... – SL/RN, MIDREX, ... & HISMELT process, iron ore fines can be directly used.

  • reduction of iron ore by grinding - atelierleslandes.nl

    Posts Related to china group for reduction iron ore sl/rn in Hadi, Fars, ... Equipments include crusher, ball mill, grinding mill, complete quarry ... Read More. direct reduction of iron ore …

  • Emerging Technologies for Iron and Steelmaking

    Several processes based upon the direct reaction of coal and iron ore in a rotary kiln, such as the SL/RN process, ... The DIOS process uses a series of fluidized bed reactors for preheating and pre-reduction of iron ore fines.

  • Overview of Market for Direct Reduced Iron -

    of the market for direct reduced iron. Direct reduction iron-making is a method for producing iron without using a blast furnace. Direct reduction iron-making was first industrialized in the 1960s, and various plants started to be built on the commercial and semi-commercial scales. Direct reduction iron-making processes roughly fall into two

  • direct reduction nickel ore - veronaschoolhouse.com

    Feb 06, 2016· This rotary kiln is widely used for extracting nickel from laterite, calcining the activated limestone,. oxidized pellet, magnesium oxide, aluminum oxide, . the production of pellets; abroad, "SL / RN Act", "Krupp Law" with its iron ore direct reduction; volatile chlorination roasting method uses it to extract tin and lead.


    The processes that produce iron by reduction of iron ore below the melting point of the iron produced are generally classified as direct reduction processes, ... HYLSA, COREX, SL/RN, IRON CARBIDE, CIRCOFER. - Semi-commercial application: at the moment it is undergoing the first

  • extraction of iron in blast furance - veronaschoolhouse.com

    Oct 28, 2016· High quality steel smelting test The ferrosilicon,ferromanganese,chromium,iron,calcium,silicon(metal),silicon manganese,silicon aluminum smelting test The reduction of various types of ore smelting test Non-ferrous metal slag to extract metals Corundum and high alumina,magnesia refractories smelting test.

  • china group for reduction iron ore slrn - perkinspreschool.com

    Sep 24, 2018· SL/RN Process Industrial Efficiency Technology & Measures. The process uses lump ore, pellets, beach sand or ilmenite ore and solid carbon to produce hot or cold DRI. This is the most widely used coal based direct reduction process.

  • China Group For Reduction Iron Ore Slrn

    china group for reduction iron ore sl rn fondmemoriin producing iron with slrn process The processes that produce iron by reduction of iron ore below the melting point of the iron produced are generally classified as direct reduction processes, and the...


    Sponge iron is a metallic product produced through direct reduction of iron ore in the solid state. It is a substitute for scrap and is mainly used in making steel through the secondary route. The process of sponge iron making aims to remove the oxygen from iron ore.

  • magnetite ore mine in india for feeding sl rn method

    magnetite ore mine in india for feeding sl rn method Importance Of Hematite Ore In The Economy... importance of hematite ore in the economy ... Iron Ore,Hematite Mining,Magnetite ... iron ore in sri lanka important - India. ...

  • bauxite ore extraction process - Mineral Processing EPC

    Jul 15, 2018· Nov 2, 2017 . Such as: aluminum production with its aluminum hydroxide roasting into alumina; use it for the production of iron ore pellets in blast . by "SL/RN" and "Krupp" method used for iron ore direct reduction; the extraction of lead.

  • process of iron reduction in tunel kin and mineral kiln

    Nov 30, 2014· tunnel kiln iron ore reduction cyberdynesystemsin tunnel kiln for direct iron reduction ,tunnel kiln direct reduction process of iron reduction in tunel kin and rotary kiln direct reduction of iron ore from tunnel kiln processprocess The is the professional mining equipments manufacturer in the worldlocated in China IndiaDirect Reduced .

  • Energy survey of the coal based sponge iron industry ...

    The actual process of the coal based sponge iron production is based on SL/RN process (jointly developed by the Steel Company of Canada, Lurgi Chemie, Republic Steel Company and National Lead Corporation in 1964), which works on direct reduction of ore.This process is adopted by worldwide conventional sponge iron industries.