corex process in iron making
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corex process in iron making

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

2021-11-18  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.

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Corex Process for Production of Iron – IspatGuru

2017-2-22  Corex Process for Production of Iron. satyendra; February 22, 2017; 0 Comments ; Corex gas, Corex process, Dome, DRI, export gas, Hot metal, Iron ore lump, Melter-Gasifier, non coking coal, pellets, Reduction furnace,; Corex Process for Production of Iron. During the late twentieth century, several new initiatives have been taken for the development of the smelting reduction technology

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Corex Process in Iron Making - SlideShare

2009-12-2  Corex Process in Iron Making 1. COREX PROCESS in IRONMAKING Report Submitted by : Aditya Kumar Singh (5207), Bachelor in Technology, Metallurgy Materials Engineering, National Institue of Foundry Forge Technology, Ranchi,

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COREX® — SMELTING REDUCTION PROCESS Primetals

Corex, the unique smelting-reduction process allows for the cost-effective 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

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Cleaner Iron Production with Corex Process

2020-11-22  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.

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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.

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Alternative emerging ironmaking technologies for energy ...

2014-5-1  The COREX process is a two-stage direct smelting process, consisting of: (1) a melter-gasifier, which melts the DRI and gasifies the coal; and (2) a DRI shaft furnace mounted above melter-gasifier, which reduces lump ore or pellets to DRI by reducing gas from the melter-gasifier. ... In primary iron making, about one-fifth of the energy ...

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Minimization of Exergy Losses in the COREX Process ...

2011-10-12  T he COREX process is being projected as an alternative for blast furnace iron making, which is heavily dependent on coke because good quality coking coal is becoming a scarce commodity. The coal consumption in the COREX process is comparatively large with a fuel rate (noncoking coal and coke) of ~1000 kg/tone of hot metal (THM) as has been estimated by Prachethan Kumar et al.[] This

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(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

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Ironmaking and steelmaking

2013-1-18  MM3020: Iron making and steelmaking (2012-13-II) Instructor In charge: Dr. Ajay Kumar Shukla Department of Metallurgical and Materials Engineering IIT Madras, India. Learning Objectives To apply the principles of physical chemistry and transport phenomena (heat, mass and momentum) to the process steps in Iron

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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.

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The Energy Blog: Cleaner Iron Production with Corex Process

2006-11-24  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. Scheduled to begin operation in late 2007, this steel mill requires no coking ...

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Study on the structure and reactivity of COREX coal ...

2012-11-7  COREX is the primary process in the current smelting reduction method. The COREX smelting reduction process has been used in industrial iron-making since the 1980s [].Using non-coking coal as the energy source in COREX helps to reduce pollution, shorten the production cycle, increase efficiency and decrease the required initial investment [1–5].

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JSW - Corex-Green Technology to produce hot metal

Corex is a smelting-reduction process developed by VAI, for cost-efficient and environmentally friendly production of hot metal from iron ore and low grade coal. The process differs from the conventional blast furnace route in that low grade coal can be directly used for ore reduction and melting work, eliminating the need for coke making units.

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Comparison of CO2 emission between COREX and blast

2009-1-1  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 ...

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Smelting Vanadium–Titanium Magnetite by COREX

2021-10-20  Pre-reduction Treatment. As mentioned above, the ferrous burden is pre-reduced to DRI in the shaft furnace first in the COREX process and then softened and melted in the melting gasifier, [] so it is necessary to pre-reduce the commercially supplied iron ore. The operation steps are as follows: first, four kinds of commercially supplied iron ores (10 to 12.5 mm) needed for the mixed burden ...

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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. Cost for COREX is usually less in comparison to ...

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熔融还原炼铁最新技术及工艺路线选择探讨

2019-12-23  Suggestions and expectations for technology advancement of HIsmelt process in the future after importing HIsmelt process are made. At last,the advice in respect of raw material and fuel material condition,iron-making to steel-making process route, production equality,and other sides are proposed to choose the melting reduction ironmaking process.

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熔融还原炼铁工艺在冶金钢铁工程中的应用 - 豆丁网 - Docin

2020-10-21  Key words :Melting reduction; Iron- making process; Metallurgical steel engineering 当前国内较为普遍的炼铁工艺仍是高炉炼铁技术,环境污染重和工 艺流程长的缺点越发地突显。从环保及焦煤的枯竭的现状出发,对新的炼铁工艺 探索让我们看到熔融还原炼铁

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Ironmaking and steelmaking

2013-1-18  MM3020: Iron making and steelmaking (2012-13-II) Instructor In charge: Dr. Ajay Kumar Shukla Department of Metallurgical and Materials Engineering IIT Madras, India. Learning Objectives To apply the principles of physical chemistry and transport phenomena (heat, mass and momentum) to the process steps in Iron

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熔融还原炼铁工艺在冶金钢铁工程中的应用 - 豆丁网 - Docin

2020-10-21  Key words :Melting reduction; Iron- making process; Metallurgical steel engineering 当前国内较为普遍的炼铁工艺仍是高炉炼铁技术,环境污染重和工 艺流程长的缺点越发地突显。从环保及焦煤的枯竭的现状出发,对新的炼铁工艺 探索让我们看到熔融还原炼铁

More

Comparison of CO2 emission between COREX and blast

2009-1-1  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 ...

More

JSW - Corex-Green Technology to produce hot metal

Corex is a smelting-reduction process developed by VAI, for cost-efficient and environmentally friendly production of hot metal from iron ore and low grade coal. The process differs from the conventional blast furnace route in that low grade coal can be directly used for ore reduction and melting work, eliminating the need for coke making units.

More

Raw materials for Corex and their influence on furnace ...

2013-7-18  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.

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Ironmaking and steelmaking

2013-1-18  MM3020: Iron making and steelmaking (2012-13-II) Instructor In charge: Dr. Ajay Kumar Shukla Department of Metallurgical and Materials Engineering IIT Madras, India. Learning Objectives To apply the principles of physical chemistry and transport phenomena (heat, mass and momentum) to the process steps in Iron

More

Study on the structure and reactivity of COREX coal ...

2012-11-7  COREX is the primary process in the current smelting reduction method. The COREX smelting reduction process has been used in industrial iron-making since the 1980s [].Using non-coking coal as the energy source in COREX helps to reduce pollution, shorten the production cycle, increase efficiency and decrease the required initial investment [1–5].

More

Non-blast Furnace Iron Making Technology :: Total Materia ...

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 ...

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Smelting Vanadium–Titanium Magnetite by COREX

2021-10-20  Pre-reduction Treatment. As mentioned above, the ferrous burden is pre-reduced to DRI in the shaft furnace first in the COREX process and then softened and melted in the melting gasifier, [] so it is necessary to pre-reduce the commercially supplied iron ore. The operation steps are as follows: first, four kinds of commercially supplied iron ores (10 to 12.5 mm) needed for the mixed burden ...

More

COREX (R) Prepared for Present and Future Iron Making ...

2009-10-1  COREX (R) Prepared for Present and Future Iron Making Challenges. Steel work operators face a plenty of challenges in a dynamic market, where even short and mid term fluctuations show their impact in a dramatic way. Hence unfortunately, long term considerations seem to be neglected, although especially in the raw material sector radical changes ...

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PRIVATE SECTOR Introduction - Steel

2016-8-18  hot rolled coils capacity, integrated steel plant based on Corex Process of oxygen iron making. The production facilities include 1.5 mtpa iron ore Beneficiation unit, 3 mtpa Pellet Plant, two Corex units 0.8 mtpa each, 2 x 130 t convertors, two slab casters and hot strip mill with state of art coil box technology. JVSL has a distinction

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