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iron making by corex process

Corex Process - Wikipedia

The Corex process consists of two main parts a Reduction Shaft and a Melter- Gasifier . The main reagents for the Corex process are iron ore, noncoking coal, and oxygen. Unlike the Blast furnace the Corex process does not use a hot blast of nitrogen, thereby greatly reducing NOx gas emissions, but instead uses oxygen. In addition, the Corex process can use iron oxides containing up to 80% lump ore and uses non coking coal directly as a reducing agent.

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(PDF) COREX PROCESS in IRONMAKING Elvis Marca

(ii) Absence of post combustion means that much chemical energy is lost in the exit gases and consequently the coal consumption in Corex is much higher than in any other iron making process. (iii) The system is maintenance oriented, including cooling gas compressor for recycling part of COREX gas for cooling the hot gases from the melter-gasifier. (iv) It is provided with very sophisticated ...

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Corex Process for Production of Iron – IspatGuru

The attractiveness of the Corex process is due to (i) hot metal quality suitable for steelmaking, (ii) low investment and operational costs due to the elimination of coke ovens and by product plant, (iii) low process related emission rates, (iv) use of a wide variety of iron ores and especially non-coking coals, and (v) generation of a highly valuable export gas which can be used for various ...

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COREX® — SMELTING REDUCTION PROCESS

Corex enables the cost-efficient and environmentally friendly production of hot metal from iron ore and coal. In the Corex process, all metallurgical work is carried out in two separate process reactors – the reduction shaft and the melter gasifier. Since coking and sintering plants are not required for the Corex process, substantial cost savings of up to 20% can be achieved in the ...

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COREX Process of Iron Making - its Merits and Demerits ...

In a nutshell, COREX is a coal based SR (smelting reduction) process of making hot metal or pig iron by direct use of non-coking coal. The outputs can be used either by integrated mills or EAF (electric arc furnace) mills. The process gasifies non-coking coal in a smelting reactor, which also produces liquid iron. The gasified coal is then fed into a shaft furnace to remove oxygen from iron ...

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Corex Process in Iron Making - SlideShare

02/12/2009  (ii) Absence of post combustion means that much chemical energy is lost in the exit gases and consequently the coal consumption in Corex is much higher than in any other iron making process. (iii) The system is maintenance oriented, including cooling gas compressor for recycling part of COREX gas for cooling the hot gases from the melter-gasifier. (iv) It is provided with very sophisticated ...

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Corex Process Industrial Efficiency Technology Measures

Corex is a smelting reduction process combining a melter gasifier with a reduction shaft. The process takes lump iron ore or pellets, non-coking coal, and oxygen as main inputs. Similar to the blast furnace process, the reduction gas moves in counter flow to the descending burden in the reduction shaft. Then, the reduced iron is discharged from the reduction shaft by screw conveyors and ...

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COREX PROCESS GRP 4.pptx - COREX PROCESS IN IRON

COREX PROCESS DESCRIPTION • Corex process is the separation of the iron reduction and smelting operations into two separate reactors, namely reduction shaft and melter-gasifier • The raw materials are iron ore, none coking coal, oxygen, fluxes • The reduction gas move in a counter flow to the burden ascending down the shaft • The reduced iron is charged into melter gasifier by means of ...

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COREX Process Iron Smelting - YouTube

08/10/2015  Corex Reduction Shaft Furnace. The primary reduction of the iron oxide feed stocks takes place in the reduction shaft furnace. The residence time in the redu...

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(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. The ...

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Corex Process Industrial Efficiency Technology Measures

Corex is a smelting reduction process combining a melter gasifier with a reduction shaft. The process takes lump iron ore or pellets, non-coking coal, and oxygen as main inputs. Similar to the blast furnace process, the reduction gas moves in counter flow to the descending burden in the reduction shaft. Then, the reduced iron is discharged from the reduction shaft by screw conveyors and ...

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Steel Plants with COREX Process in Operation: A Quick ...

COREX Process of Iron Making - its Merits and Demerits. COREX Process and Technology of Ironmaking The COREX technology is a cost efficient, environmentally friendly and industrially accompli... Kilns and Furnaces used in Ceramic and Refractory Industries : A General Description and Comparison. 16-July-2009 Fig - Tunnel Kiln exit. Kiln Car loaded with Wares (Refractory Bricks) coming out of ...

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Operating Line Prediction of COREX Iron-making Process ...

of iron making, other than the traditional blast furnace route. These alternative routes can be classified into the direct reduction methods producing the direct reduced iron (DRI), and the smelting reduction methods producing the liquid hot metal. COREX is one of the commercially realized smelting reduction processes, which allows the non-coking coal to be utilized as fuel. This process ...

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COREX FINEX - NEW DEVELOPMENTS IN UTILIZATION OF LOW ...

present and future iron making process. This paper gives an overview about the COREX FINEX plants in operation, shows the new developments and findings for the FINEXCOREX process and depicts valuable concepts for the utilization of the COREX export gas. And experiences with new developments already applied and proven on operating plants. Keywords: New Developments In Iron Making Process ...

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Cleaner Iron Production with Corex Process

A special manufacturing process is making the production of iron much more environmentally friendly. The outstanding feature of the “Corex process” is that it uses conventional coal instead of coking coal, the customary ingredient. Siemens is currently building the world’s largest Corex-based plant in China. Schedule to begin operation in late 2007, this steel mill requires no coking ...

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COREX IRON MAKING PROCESS PDF - mansic

Corex Process for Production of Iron. During the late twentieth century, several new initiatives have been taken for the development of the. COREX PROCESS in IRONMAKING Report Submitted by: Aditya Kumar Singh ( ), Bachelor in Technology, Metallurgy Materials. A brief technical review about what is COREX process of iron making, some merits and demerits of COREX technology.

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Non-blast Furnace Iron Making Technology :: Total

COREX is the first commercially operating alternative to the blast furnace for hot metal production, and HIsmelt is the world's first commercial smelting process for making iron straight from the ore. In addition, HIsmelt is the only hot air based direct smelting process, enabling to recycle a significant proportion of off-gas as fuel for air preheating. Table 1.2: Characteristics of selected ...

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Emerging Technologies for Iron and Steelmaking

The Corex process, 24 commercialized by Voest Alpine, combines an iron melter/coal gasifier vessel with a pre-reduction shaft to produce a liquid product that is very similar to blast furnace hot metal. Coal, oxygen, and pre-reduced iron are fed into the melter/gasifier to melt the iron and produce a highly reducing off-gas. The primarily CO-H

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COREX IRON MAKING PROCESS PDF - PDF Lake Side

21/04/2020  Corex Process for Production of Iron. During the late twentieth century, several new initiatives have been taken for the development of the. COREX PROCESS in IRONMAKING Report Submitted by: Aditya Kumar Singh ( ), Bachelor in Technology, Metallurgy Materials. A brief technical review about what is COREX process of iron making, some merits and demerits of COREX technology.

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Alternative Iron making processess - SlideShare

18/01/2014  COREX PROCESS Charge is charged into a reduction shaft where they are reduced to direct reduced iron (DRI) by a reduction gas moving in counter flow. Discharge screws convey the DRI from the reduction shaft into the melter –gasifier. In Melter-gasifier final reduction and melting takes place. Hot metal and slag tapping are done as in conventional blast furnace practice. The gas leaving the ...

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The World Leader in Ironmaking Solutions Primetals ...

Corex enables the cost-efficient and environmentally friendly production of hot metal from iron ore and coal. In the Corex process, all metallurgical work is carried out in two separate process reactors – the reduction shaft and the melter gasifier. Since coking and sintering plants are not required for the Corex process, substantial cost ...

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COREX IRON MAKING PROCESS PDF - Igrado

18/04/2020  The Corex Process is a smelting reduction process created by Siemens VAI as a more environmentally friendly alternative to the blast furnace. Views Read Edit View history. Corex Process for Production of Iron Cirex is coal which has been cooked in order to remove impurities so that it is superior to coal. The hot metal produced has carbon and ...

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How are COREX and MIDREX different from each other?

Midrex is an innovative ironmaking process, developed for the production of direct-reduced iron (DRI) from iron ores and primarily natural gas. 5. Overall operation and production cost for COREX ...

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Comparison of CO2 emission between COREX and blast

01/01/2009  Blast furnace (BF) is the classic iron-making process that extracts metallic iron from iron ore by carbon, while COREX is the only commercialized smelting reduction process. In 2007, the world steel output is about 1.344x109 ton where 4.81 x 108 ton of scrap and 9.48 x 108 ton of hot metal were consumed by BF, and the others were consumed the rest by Direct Reduction (DR) and Smelting ...

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COREX IRON MAKING PROCESS PDF - PDF Lake Side

21/04/2020  Corex Process for Production of Iron. During the late twentieth century, several new initiatives have been taken for the development of the. COREX PROCESS in IRONMAKING Report Submitted by: Aditya Kumar Singh ( ), Bachelor in Technology, Metallurgy Materials. A brief technical review about what is COREX process of iron making, some merits and demerits of COREX technology.

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Non-blast Furnace Iron Making Technology :: Total

COREX is the first commercially operating alternative to the blast furnace for hot metal production, and HIsmelt is the world's first commercial smelting process for making iron straight from the ore. In addition, HIsmelt is the only hot air based direct smelting process, enabling to recycle a significant proportion of off-gas as fuel for air preheating. Table 1.2: Characteristics of selected ...

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COREX IRON MAKING PROCESS PDF - mansic

Corex Process for Production of Iron. During the late twentieth century, several new initiatives have been taken for the development of the. COREX PROCESS in IRONMAKING Report Submitted by: Aditya Kumar Singh ( ), Bachelor in Technology, Metallurgy Materials. A brief technical review about what is COREX process of iron making, some merits and demerits of COREX technology.

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Emerging Technologies for Iron and Steelmaking

The Corex process, 24 commercialized by Voest Alpine, combines an iron melter/coal gasifier vessel with a pre-reduction shaft to produce a liquid product that is very similar to blast furnace hot metal. Coal, oxygen, and pre-reduced iron are fed into the melter/gasifier to melt the iron and produce a highly reducing off-gas. The primarily CO-H

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COREX IRON MAKING PROCESS PDF - stateoffluxfo

Corex Process for Production of Iron. During the late twentieth century, several new initiatives have been taken for the development of the. COREX PROCESS in IRONMAKING Report Submitted by: Aditya Kumar Singh ( ), Bachelor in Technology, Metallurgy Materials. A brief technical review about what is COREX process of iron making, some merits and demerits of COREX technology.

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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...

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