HIsmelt process of Ironmaking – IspatGuru

Jul 02, 2013 · Fig 2 Typical flow sheet of HIsmelt plant Environmental Impact The environmental benefits of the HIsmelt process are considerable. By reducing the demand for coke, sinter and pellets, and improving the energy efficiency of the iron making process, it reduces emissions of greenhouse gases and other damaging environmental pollutants such as SO x, NO x and dioxins.


change takes place in direct reduction. The gangue material in sponge iron, originating from Iron Ore, namely, silica and alumina and the sulphur and phosphorous contents adversely affect the economics in subsequent steel making operation. Therefore, the ore should be high in iron content and low in gangue, Physical Specification –

Fire in Direct Reduced Iron Fines - bulk-online.com

Jun 11, 2014 · Dear All, We have a Midrex Sponge Iron plant producing cold DRI. Since some days we are noticing fire in DRI dust. The temperature stays normal at the furnace discharge but when the product gets transferred after moving through a belt for around 200 meters to another belt the DRI dust catches fire. It is happening again and again. We have started using some new pellets since some days but …

Nucor DRI Facility

during the direct iron ore reduction process, Nucor needed to build its DRI plant in an area that was plentiful in producing natural gas. Transportation was also an issue that needed to be addressed, as the direct-reduced iron needed to be transported to the steel …

Industrial Training Report on Direct Reduced Iron Plant(DRI

Industrial Training Report on Direct Reduced Iron Plant(DRI) 1. 1 | P a g e 20 days Industrial Training Report File On DRI (18/02/2017-09/03/2017) Submitted To Submitted By Mr. MK Pyasi Shani Kumar Singh General Manager Roll No-1344948 Direct Reduced Iron Plant-2 Branch-Mechanical Jindal Steel and Power Ltd, Raigarh Semester-8th College-CGC-COE, Mohali Signature-

Direct Reduced Iron Company Dammam – Business Recorder

The Direct Reduction Process converts iron oxides, in the form of lump and pellet, to high purity direct reduced iron. The major components of a Direct Reduction Plant include the shaft furnace, reformer and heat recuperator. The direct reduction of the oxide is carried out on a continuous basis. The iron oxide fed to the top of the shaft ...

PDF) i) Direct Reduced Iron: Production

This product is known as direct reduced iron (DRI) or sponge iron. ... is an integrated steel plant that consists of. sintering or pelletizing units, coke ovens, BFs, and BOFs. ... diagram of a ...

Direct Reduced Iron (DRI) - Cargo Handbook - the world's

Direct-reduced iron (DRI), also called sponge iron, is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. The reducing gas is a mixture majority of hydrogen (H2) and carbon monoxide (CO) which acts as reducing agent.

Flexibility of Direct Reduction Technology The MIDREX Way

Jun 18, 2012 · for Direct Reduction. Rough Conversions 1 ton Coke →3 ton LS. 1 ton Coke →500 Nm. 3. COG. 500 Nm. 3. COG →1 ton DRI →0.88 t LS (using DR grade pellets) Key Points • Using COG to produce DRI would increase liquid steel production by ~30% • Product from the MIDREX DR Plant can be used in the BF, BOF, or an EAF • This allows ...

Direct-Reduced Iron - an overview | ScienceDirect Topics

Jan 05, 2012 · Direct reduction (DR): Direct reduction involves the production of solid iron from iron ores and a reducing agent (e.g., natural gas). The solid product is called DRI and is mainly applied as feedstock in EAF. The direct reduction process has been commercialized since the 1970s and a variety of processes have been developed. (2)

The Ironmaking Process | New Zealand Steel

The success of this direct reduction process of ironsands on a commercial scale was a hard-fought technological battle, culminating in a world first achievement for New Zealand Steel. At the Waikato North Head mine, the ironsand is concentrated by magnetic and gravity separation processes to increase the iron content and decrease the amount of ...

PERED Technology for Direct Reduced Iron Production

The PERED direct reduction process converts iron oxides, in the form of pellets or lump ore, to highly reduced product suitable for steel making. The reduction of iron oxide takes place without its melting with the help of reducing gases in solid state in a vertical shaft furnace.

Direct reduced iron - Wikipedia

Direct reduced iron, also called sponge iron, is produced from the direct reduction of iron ore to iron by a reducing gas or elemental carbon produced from natural gas or coal. Many ores are suitable for direct reduction. Direct reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting point of iron. Reduced iron derives its name from these processes, one example being heating iron ore in a furnace at a high temperature of 800 to 1,200


The product delivered to the smelting reduction vessel is quite similar to the reduced iron that is produced in direct reduction technology, namely direct reduced iron (DRI). More coal is needed in the smelting reduction vessel to melt the iron. Processes operating at such a high level of pre-reduction are referred to as first generation processes.

direct reduction plant for iron ore supplier in mining

direct reduction plant for iron ore supplier Mining. 3/6/2013 Mining > Mining News > direct reduction plant for iron ore supplier in thailand; Print direct reduction plant for iron ore supplier in thailand Posted at:June 3, 2013[ 49 3937 Ratings] History – Danieli – The Art of Steel In those days the Company manufactured tools for forging plants and auxiliary the leading suppliers of hot ...

PDF Cost Effectiveness Analysis of HYL and Midrex DRI

agglomerate fine iron ore dust in conjunction with other material (typically limestone) to form a product that can be added to the blast furnace. Another alternative to hot molten iron making is the direct reduction method. In this method, iron is reduced in its solid state using either coal or natural gas as a fuel.

Midrex® the world’s leading direct-reduced iron production

Midrex is an innovative ironmaking process, developed for the production of direct-reduced iron (DRI) from iron ores and primarily natural gas.You want to kn...

Primetals Technologies develops breakthrough technology

Jun 26, 2019 · Primetals Technologies has developed the world's first direct reduction process for iron ore concentrates from ore beneficiation not requiring any preprocessing like sintering or pelletizing. Primetals can resort to the comprehensive experience from the earlier Finmet development and plant …

Hot briquetted direct reduced iron plant @ voestalpine

The hot briquetted direct reduce iron (HBI) plant of voestalpine in Corpus Christi , Texas, USA, is the biggest plant of its kind. It produces 2 million ton...

PDF) Detailed Modeling of the Direct Reduction of Iron Ore

The direct reduction (DR) of iron ore, usually followed by electric ar c steelmaking, is an alternative route to the standard, blast furnace, basic oxygen route for making steel. Annual DR iron ...

Direct-reduced iron plant - Azerbaijan Simurgh Mining

Therefore, the plant cannot absorb the necessary iron from the clay. If the problem is clay, you should use a compost or similar natural product to improve the soil. For information about direct reduced iron prices Visit our site. production process of direct-reduced iron .

Direct Reduced Iron | Industrial Efficiency Technology & Measures

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. DRI can then be transformed to steel in electric arc furnaces. DRI production is common in Middle East, South America, India and Mexico. DRI offers ...

FASTMET and FASTMELT Processes of Ironmaking – IspatGuru

Nov 15, 2013 · The FASTMET process converts iron ore pellet feed, iron ore fines and/or metallurgical waste from the steel plant into direct reduced iron (DRI) using pulverized non coking coal as a reductant. The process uses a rotary hearth furnace (RHF) for the reduction reaction (Fig 1).

Reduction and release of ferritin iron by plant phenolics

These reductants represent an oxidation reduction potential range of 0.38 volts. A direct correlation between reducing power of the o-diphenols and rate of ferritin iron release was observed. Superoxide dismutase, catalase, mannitol, or general radical traps had no effect on the rate of iron removal; however, EDTA and oxalate inhibited iron ...

Direct-reduced iron - URM-Company

All effective methods of direct reduction actually use the same process: rich iron ore (fine concentrate or pellets) is reduced by a special gas mixture up to the iron content of 85-90%. 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 ...

Detailed Modeling of the Direct Reduction of Iron Ore in a

41 is of sufficient length to separate the reduction section from the cooling section to allow an 42 independent control of both sections. The solid product, called direct reduced iron (DRI) or reduced 43 sponge iron, is cooled in the lower part of the furnace down to approximately 50°C prior to being 44 discharged.

Direct Reduced Iron (DRI) | International Iron Metallics

Direct Reduced Iron (DRI) is the product of the direct reduction of iron ore in the solid state by carbon monoxide and hydrogen derived from natural gas or coal. See more information about the production of DRI.Most gas-based direct reduction plants are part of integrated steel mini-mills, located adjacent to the electric arc furnace (EAF) steel plant. DRI can be either hot or cold charged to the EAF. Some steel companies ship DRI from their captive direct reduction plants to their remote ste...

Direct reduction/hot briquetted iron plant Cape Lambert | EPA

The proposed plant will utilise conventional and commercially proven ore concentration, pelletising and gas-based shaft furnace direct reduction technologies to convert Pilbara iron ore (fines and lump) into HBI. The production capacity of the plant is expected to be 3.6 million tonnes per year (Mtpa) of HBI.

DRI production | International Iron Metallics Association

Direct reduction of iron is the removal of oxygen from iron ore or other iron bearing materials in the solid state, i.e. without melting, as in the blast furnace. The reducing agents are carbon monoxide and hydrogen, coming from reformed natural gas, syngas or coal. Iron ore is used mostly in pellet and/or lumpy form.

The HBI direct reduction process - voestalpine

Nov 03, 2016 · The direct reduction process. HBI is the product of reducing iron ore with natural gas. This is called the direct reduction process and is an environmentally-friendly production process; a DRI plant uses natural gas which is more environmentally sound than coke. The reduction process takes place in the reduction tower.

Reduction of Iron Oxides with Hydrogen—A Review - Spreitzer

Reduction with hydrogen, in the best case produced via renewable energies, is a future‐minded alternative to commonly used fossil fuels. Direct reduction processes, which reduce iron ore to metallic iron without any liquid phase, especially have the possibility to use a high percentage of hydrogen in the reducing gas mixture.

dri direct reduced iron project cancelled

dri direct reduced iron project cancelled. Nucor corps direct reduced iron plant first phase of nucor corp dedicated the companys completed million direct reduced iron, or dri, plant in st james parish, louisiana the plant is the first of a potential fivephase project in the parish, which is located on the mississippi river approximately miles north of new orleans

MIDREX Processes

Plant Engineering Department, Iron Unit Division, Natural Resources & Engineering Business Since 1978, when a plant based on the MIDREX process was built in Qatar for producing direct reduced iron, Kobe Steel and MIDREX Technologies, Inc., have collaborated to make many technical improvements in the process. The largest MIDREX module, having an

HBI production | International Iron Metallics Association

The schematic represents the HBI briquetting process. Direct Reduced Iron is discharged hot from the reduction furnace and screw-fed into the nip between two counter rotating rollers. Pockets in the synchronously rotating rollers form the briquettes. This process occurs at high temperatures (typically approx. 700 °C) and high pressing forces.


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).