iron making by corex process

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The MIDREX® Process – The world’s most reliable and productive direct reduction ironmaking technology. Midrex Process . Project Development. Your partner for contracting to commissioning direct reduced iron plants. Project Development . Midrex Global Solutions. Aftermarket group dedied to continual support of your MIDREX® Plant. Global

COREX IRON MAKING PROCESS PDF - PDF Lake Side

Apr 21, 2020· A brief technical review about what is COREX process of iron making, some merits and demerits of COREX technology. The second stage of the process consists of melting and cogex of hot DRI by the coal and oxygen which is added in the meter-gasifier. After the success of the smelting reduction technology was achieved through operation of C module

Raw materials for Corex and their influence on furnace

Jul 18, 2013· The Corex process has been developed as an alternative to BF iron-making, which uses non-coking coal and a small amount of coke as fuel, and pellet/lump ore as iron-bearing feed. JSW Steel operates two Corex units each of 0⋅8 Mtpa, commissioned in 1998 and 2001 respectively.

What is the Corex process in steel making? - Quora

Hello everyone. Corex Process The Corex Process is a smelting reduction process created by Siemens VAI as a more environmentally friendly alternative to the blast furnace. Presently, the majority of steel production is through the blast furnace wh

Minimization of Exergy Losses in the COREX Process - NASA/ADS

The COREX process is being projected as an alternative for blast furnace iron making. The coal consumption of the COREX process is large with a net fuel rate of ~1000 kg/tone of hot metal (THM). The reason for a higher net fuel rate of the COREX process compared with the net coal rate for the blast furnace process has been investigated.

Iron Making - tanggamus

With over a decade Research & Development on environmentally friendly production of hot metal directly from non-metallurgical coal and iron ore (coal reduction process), founded by Korf Engineering GH & VOEST-ALPINE AG in 70s, COREX® process convincingly came into a commercial in the late 90s and currently operated by several worldwide steel

MIDREX® — THE LEADING DRI PRODUCTION PROCESS

Midrex is an innovative ironmaking process, developed for the production of direct-reduced iron (DRI) from iron ores and primarily natural gas. Midrex is a gas-based shaft furnace process that converts iron oxides – in the form of pellets or lump ore – into direct reduced iron (DRI). The Midrex technology is highly adaptive to our customers

(PDF) Minimization of Exergy Losses in the COREX Process

The COREX process is being projected as an alternative for blast furnace iron making. The coal consumption of the COREX process is large with a net fuel rate of~1000kg/tone of hot metal (THM).

ROMELT PROCESS FOR IRONMAKING | Steel360 News

Apr 23, 2018· The iron oxide feed to a Romelt process can be any iron containing material, e.g. iron ore fines and concentrates, blast furnace and BOF dusts and sludges, mill scale, iron bearing slags, scarfing wastes and turnings, and iron dusts etc. The wet non-coking coals of 15 % to 20 % volatile matter and around 8 % to 10 % ash can be used for the process.

Steel Plants with COREX Process in Operation: A Quick

Both the hot metal from COREX plant and direct reduced iron (DRI) are processed to high quality steel in a twin-shell EAF, followed by thin slab casting and direct rolling in the hot strip mill to produce high quality hot rolled coils (HRC).

A Comprehensive Static Model for COREX Process

The most innovative feature of the COREX process is the separation of the iron reduction and smelting into two sep-arate reactors, namely reduction shaft and melter-gasifier as shown in Fig. 1, which were described elsewhere.1–3) The reduction shaft is placed above the melter-gasifier and reduced iron-bearing materials descend by gravity. The

Minimization of Exergy Losses in the COREX Process

Oct 12, 2011· The COREX process is being projected as an alternative for blast furnace iron making. The coal consumption of the COREX process is large with a net fuel rate of ~1000 kg/tone of hot metal (THM). The reason for a higher net fuel rate of the COREX process compared with the net coal rate for the blast furnace process has been investigated.

3A3. Direct Iron Ore Smelting Reduction Process (DIOS)

2. Molten iron production cost decreased by 19%. 3. Coal consumed, 730-750 kg per 1 ton of molten iron production, equivalent to that of the blast furnace process. 4. Net energy consumption decreased by 3 to 4%. 5. CO2 emissions in the iron making process decreased by 4 to 5%. Ta ble 1 Research and development progress 1988 1991 1992 1993

Study on the permeability index of COREX melter-gisifer

COREX ironmaking technique is a new process to produce hot metal by directly using lump coals and pellets, which is also the main process of the current smelting reduction method. C-3000 introduced by Baosteel is the biggest production equipment of non-blast-furnace iron making in the world [1, 2]. However, some heretofore

Iron Making - an overview | ScienceDirect Topics

A by-product of the iron-making process, blastfurnace slags result from the fusion of fluxing stone (limestone or dolomite) with gangue (siliceous and aluminous) residues from the iron ore and coke ash. 302,303 The chemical composition is dominated by lime, silica and alumina (Table 15.16), with smaller amounts of magnesia, sulfur and iron.The equilibrium mineralogical compositions are usually

COREX IRON MAKING PROCESS PDF - Boden Seeland

Sep 07, 2019· By fulfilling more stringent ecological regulations by law, utilization of low-cost, highly available low grade raw materials including fines, the COREX process has been accepted as a commercially proven technology for present and future iron making process. Today Corex technology is an acknowledged process for producing liquid hot metal in a quality which is identical to hot metal …

3A3. Direct Iron Ore Smelting Reduction Process (DIOS)

The Direct Iron Ore Smelting Reduction Process (DIOS) directly uses noncaking coal in a powder or granular form, and iron ore without the use of coke or a sintering process, which are normally required in blast furnace processes. The noncaking coal is directly fed to a …

Study on the permeability index of COREX melter-gisifer

COREX ironmaking technique is a new process to produce hot metal by directly using lump coals and pellets, which is also the main process of the current smelting reduction method. C-3000 introduced by Baosteel is the biggest production equipment of non-blast-furnace iron making in the world [1, 2]. However, some heretofore

Environment-friendly COREX®, FINEX® and MIDREX® …

May 20, 2008· (a) COREX® technology – It is an industrially and commercially proven direct smelting reduction process that allows for cost-efficient and environmentally compatible production of hot metal directly from iron ore and non-coking coal. This is the only alternative to the conventional blast furnace route consisting of sinter plant, coke oven and blast furnace.

Steel Plants with COREX Process in Operation: A Quick

Both the hot metal from COREX plant and direct reduced iron (DRI) are processed to high quality steel in a twin-shell EAF, followed by thin slab casting and direct rolling in the hot strip mill to produce high quality hot rolled coils (HRC).

Operating Line Prediction of COREX Iron-making Process

Operating Line Prediction of COREX Iron-making Process Using RIST Diagram C SRISHILAN,1) Anand VIVEK2) and Ajay Kumar SHUKLA1)* 1) Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, 600036 India. 2) Department of Metallurgical & Materials Engineering, Jadavpur University Kolkata, 700032 India.

(PDF) GASIFIION AND THE MIDREX DIRECT REDUCTION PROCESS …

I02-iron&steel-gs-ad-gct. By Miziey Me-g. COREX PROCESS in IRONMAKING. By Elvis Marca achura. Appliions of computational fluid dynamics (CFD) in the modelling and design of ventilation systems in the agricultural industry: a review. By Tomás Norton.

FINEX (steelmaking process) - Wikipedia

FINEX is the name for an iron making technology developed by former Siemens VAI (now Primetals Technologies) and POSCO.Molten iron is produced directly using iron ore fines and non-coking coal rather than traditional blast furnace methods through sintering and reduction with coke.Elimination of preliminary processing is claimed to make the plant for FINEX less expensive to build than a blast

CO2 Capture in the Steel Industry

Iron & Steel Industry • Reports • 2013-04 – “Understanding the Economics of Deploying CO 2 Capture Technologies in an Integrated Steel Mill” • 2013-TR3 – “Overview of the Current State and Development CO 2 Capture Technologies in the Ironmaking Process” • Stakeholders Engagement • 1 st Workshop (Nov. 2011) Dusseldorf, Germany

Smelt reduction for iron and steel sector | Climate

Smelt reduction, which integrates ore agglomeration, coke making and iron production in a single process, offering an energy-efficient alternative at small to medium scales (IPCC 2007). As an example, Price et al. (2001) demonstrate that South Africa developped the COREX process, as it possesses large reserves of suitable iron ores, but only

(PDF) Optimisation of COREX process

The Corex process is a two-stage smelting reduction process, in which hot metal can be produced from non-coking coal and iron ores. Iscor''s Corex plant has a yearly capacity of 300 000 t.

Minimization of Exergy Losses in the COREX Process

Oct 12, 2011· The COREX process is being projected as an alternative for blast furnace iron making. The coal consumption of the COREX process is large with a net fuel rate of ~1000 kg/tone of hot metal (THM). The reason for a higher net fuel rate of the COREX process compared with the net coal rate for the blast furnace process has been investigated.