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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.

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 ...

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 ...

(PDF) COREX PROCESS in IRONMAKING Elvis Marca Catachura ...

The COREX process offers high smelting intensity and hence higher productivity, ability to use various types of non-coking coals, use of iron ore fines to an extent, low net operating cost, possible generation of power or other alternative use of export gas generated from

Corex Process for Production of Iron – IspatGuru

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 which ...

Corex Process in Iron Making - SlideShare

Dec 02, 2009  The COREX process offers high smelting intensity and hence higher productivity, ability to use various types of non-coking coals, use of iron ore fines to an extent, low net operating cost, possible generation of power or other alternative use of export gas generated from the ironmaking unit, besides being eco-friendly.

COREX FINEX - NEW DEVELOPMENTS IN UTILIZATION

level of pre-reduction are referred to as first generation processes. The COREX process is the best known first generation process. 3. OVERVIEW OF COREX PLANT IN OPERATION In the COREX process, all metallurgical work is carried out in two separate process reactors. In the first step the iron ore is reducedin a shaft furnace.

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

An Integrated Compact Mill (ICM), based on a COREX C-2000 plant and the Midrex DR plant was started up in mid 1999 at ArcelorMittal Steel South Africa (Saldanha Steel), situated near the west coast of South Africa. It is operated with mainly indigenous iron ores comprising SISHEN lump ore (80 - 100%), CVRD pellets (0 - 20%) and indigenous coal from the VAN DIJKSDRIFT and GROOTELUK coal districts.

(PDF) Optimisation of COREX process - ResearchGate

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.

Corex Process - iron Manufacturing Technology

Oct 29, 2018  Corex Process - iron Manufacturing Technology 1. IRON MANUFACTURING TECHNOLOGY COREXPROCESS 2. Metallurgy Material Engineering Group Members – Usama Hassan(332) – Asfand Shahid(333) – JunaidIllahi (334) – Asad Jamil (335) – Ahmer Ejaz(336) 3.

THE COREX® PROCESS: Historical Development and Innovation ...

May 11, 2010  COREX® was the first industrial smelting reduction process just driven by normal coal, which is available all over the world. It started with promising test results at a time engineers were of the opinion that this process will revolutionize the whole iron market.

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

An Integrated Compact Mill (ICM), based on a COREX C-2000 plant and the Midrex DR plant was started up in mid 1999 at ArcelorMittal Steel South Africa (Saldanha Steel), situated near the west coast of South Africa. It is operated with mainly indigenous iron ores comprising SISHEN lump ore (80 - 100%), CVRD pellets (0 - 20%) and indigenous coal from the VAN DIJKSDRIFT and GROOTELUK coal districts.

COREX FINEX - NEW DEVELOPMENTS IN UTILIZATION

level of pre-reduction are referred to as first generation processes. The COREX process is the best known first generation process. 3. OVERVIEW OF COREX PLANT IN OPERATION In the COREX process, all metallurgical work is carried out in two separate process reactors. In the first step the iron ore is reducedin a shaft furnace.

COREX Process Iron Smelting - YouTube

Oct 08, 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...

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.

(PDF) Optimisation of COREX process - ResearchGate

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.

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 ...

COREX IRON MAKING PROCESS PDF - PDF Lake Side

Apr 21, 2020  Corex Process for Production of Iron Smelting reduction processes come in two basic varieties, two-stage or single-stage. The COREX technology is a cost efficient, environmentally friendly and industrially accomplished alternative to the blast furnace route for the production of hot metal from iron ore and coal.

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 ...

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 ...

Corex Process - WikiMili, The Best Wikipedia Reader

Process. The Corex process consists of two main parts a Reduction Shaft and a Melter- Gasifier [4]. The main reagents for the Corex process are iron ore, noncoking coal, and oxygen. [5] 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 ...

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 ...

Ironmaking Process - an overview ScienceDirect Topics

Apr 04, 2012  The ironmaking process in the blast furnace is a heat and mass transfer process, and the furnace can be divided into different zones according to physical and chemical state of the feed and temperature. Figure 1.1.5 illustrates various zones of the blast furnace and feed distribution and materials flow [13].Corresponding to each temperature interval, typical reactions will take place.

The FINEX Process :: Total Materia Article

The Finex process is an innovative ironmaking process which has been developed by Siemens VAI and Posco. A schematic of the process is shown below: Figure 1: The FINEX process. Molten Iron is produced directly using iron ore fines and non-coking coal rather than processing through a sinter plant and coke ovens as traditional blast furnace route.

THE COREX® PROCESS: Historical Development and Innovation ...

May 11, 2010  COREX® was the first industrial smelting reduction process just driven by normal coal, which is available all over the world. It started with promising test results at a time engineers were of the opinion that this process will revolutionize the whole iron market.

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

Corex Process in Iron Making - SlideShare

The COREX process offers high smelting intensity and hence higher productivity, ability to use various types of non-coking coals, use of iron ore fines to an extent, low net operating cost, possible generation of power or other alternative use of export gas generated from

COREX IRON MAKING PROCESS PDF - PDF Lake Side

Apr 21, 2020  Corex Process for Production of Iron Smelting reduction processes come in two basic varieties, two-stage or single-stage. The COREX technology is a cost efficient, environmentally friendly and industrially accomplished alternative to the blast furnace route for the production of hot metal from iron ore and coal.

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 ...

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 ...

Comparison of CO2 emission between COREX and blast furnace ...

Jan 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 ...

COREX IRON MAKING PROCESS PDF - igrado

Apr 18, 2020  Corex process distinguishes itself from the blast furnace route by i direct use of non-coking coal as reducing agent and energy source, ii Iron ore can be directly and feasibly charged to the process in form of lump ore, and pellets, and iii use of pure oxygen instead of nitrogen rich hot blast.

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...

Ironmaking Process - an overview ScienceDirect Topics

Apr 04, 2012  The ironmaking process in the blast furnace is a heat and mass transfer process, and the furnace can be divided into different zones according to physical and chemical state of the feed and temperature. Figure 1.1.5 illustrates various zones of the blast furnace and feed distribution and materials flow [13].Corresponding to each temperature interval, typical reactions will take place.

Reduction Behaviors of Sinter Made from Magnetite ...

COREX smelting reduction process which is freed of metallurgical coke provides a sustainable developing way for ironmaking industry. However, the shortage and high cost of pellets limit its development in China. Meanwhile, iron ore sinter has a great output in China.

Reducing process of sinter in COREX shaft furnace and ...

In order to reduce the materials cost of COREX ironmaking process, sinter has been introduced into the composite burden in China. This work explored the reducing process of sinter in COREX shaft furnace to clarify its reduction properties change and then the effect of sinter proportion on metallurgical performance of composite burden was investigated.

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.

Ironmaking Alternatives Screening - 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%).

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