Direct reduced iron Wikipedia

Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas or elemental carbon produced from natural gas or coal. Many ores are suitable for direct reduction.

(PDF) i) Direct Reduced Iron: Production ResearchGate

i) Direct Reduced Iron: Production . Chapter (PDF Available) · March 2016 with 25,568 Reads How we measure 'reads' A 'read' is counted each time someone views a

A cost comparison: Production and smelting of prereduced

09.01.2017· The major capital expenditure in a plant to make prereduced pellets is for kilns and coolers. Other items, beyond those required for conventional pellets, such as reductant bins and conveyors, add little to the depreciation charge per ton of product. Prereduced pellet plants cost more per product ton than those for oxide spheres largely because there is more iron in the

Persian Reduction Technology to Lower Steelmakers’ Costs

New direct-reduced iron plants in Iran are being equipped with the Iranian direct-reduction technology called PERED, or Persian Reduction. The

Direct Reduction Process an overview ScienceDirect Topics

DRI or HBI are virgin iron sources free from tramp elements and are increasingly being used in EAF to dilute the contaminants present in the scrap. The first commercial-scale MIDREX Direct Reduction Plant began operation in 1969 at Oregon Steel Mills in Portland, Oregon. There are now over 60 MIDREX Modules operating, under construction, or

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

Cost Effectiveness Analysis of HYL and Midrex DRI

Cost Effectiveness Analysis of HYL and drex DRI Te chnologies for the Iron and Steel-king Industry Pa ge 4 also included in each individual section. The results show that not only does the HYL/EAF combination yields the most cost savings over the business as usual scenario, but it also results in the most reduction of CO 2.

Direct Reduced Iron (DRI) Production Plant

Direct Reduced Iron (DRI) Production Plant NIPPON STEEL ENGINEERING CO., LTD. Basic Concept or Summary S-16 u A direct reduced iron (DRI) production plant is a shaft reduction furnace to produce DRI with large metal iron content by directly reducing iron ore (or iron ore pellets) with reducing gases.

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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

Direct-Reduced Iron an overview ScienceDirect Topics

MIDREX has earned its leadership in direct reduction because its plants are the industry’s most productive and most reliable Production of direct reduced iron involves reduction of iron ores in pallet or lump form in the presence of reducing gas comprising CO and H 2. SIS plays an important role in this process, which is a stone process rather than a normal iron extraction


GASIFICATION AND THE MIDREX DIRECT REDUCTION PROCESS By: Rob Cheeley Senior Sales Engineer, Midrex Direct Reduction Corporation INTRODUCTION The production of direct reduced iron (DRI), a basic raw material for making steel, is concentrated in a few countries in the Middle East and Latin America. One primary reason is that natural gas, the main fuel source


Direct reduction Scrap Ladle (Refining) Electric arc furnace (Steelmaking) Iron Ore Pellets Electric Arc Furnace Steelmaking Continuous casting Design by Blisscommunication / Cover photo: ThyssenKrupp Steel / Tubes photo: Salzgitter The process shown above is illustrative only and is not designed to show the steelmaking process in detail.

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.


Outotec Direct Reduction technologies are based on almost 50 years’ experience of delivering solutions for customers in the ferrous direct reduction sector, encompassing the full range of plant types. Our innovative technologies, developed through our world-class R&D capabilities, enable sustainable energy use, the use of lower-grade ores, and

Resources Trend and Use of Direct Reduced Iron in

Direct reduction is a process for reducing iron ore in the solid state. It requires much less capital investment than the BF process and requires no coke. Therefore, DR plants have nbeen built mainly in oil and natural gas producing countries to supply raw iron for EAF processes. Particularly in the

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

3A3. Direct Iron Ore Smelting Reduction Process (DIOS) Technology Overview˜ ˜ 1) Core technology study (FY1988-FY1990) Core technologies necessary for the construction of the pilot plant were established. These core technologies include an increase in the thermal efficiency of a smelting reduction furnace

Iron and Steelmaking

Pig iron is divided into steel-making pig iron, which is intended for further processing to steel by various refining processes, and foundry pig iron, from which cast iron is produced by re-melting. Directly Reduced Iron Directly reduced iron is a product of iron (steel) direct reduction from ores in the solid

Midrex direct reduction SMS group

As a result, Paul Wurth is able to offer Midrex ® gas-based direct reduction ironmaking plants as part of its portfolio. The Midrex ® direct reduction process is the industry’s most productive technology for making high-quality direct reduced iron (DRI) products, accounting for approximately 60% of the world’s total annual production. DRI

Direct Reduction Iron DRI Perantech

/ Direct Reduction Iron DRI; Direct Reduction Iron DRI . Competences. Design and Supply together Perantech analyses and manages the projects using a techno-commercial approach so that the equipment configuration is geared to the customer's requirements. Equipment Selection/ Configuration Selection and designation of the best compatible product for the plant according

Direct Reduction Iron DRI Perantech

/ Direct Reduction Iron DRI; Direct Reduction Iron DRI . Competences. Design and Supply together Perantech analyses and manages the projects using a techno-commercial approach so that the equipment configuration is geared to the customer's requirements. Equipment Selection/ Configuration Selection and designation of the best compatible product for the plant according

The HBI direct reduction process voestalpine

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.

HYL Process for Direct Reduction of Iron Ore IspatGuru

HYL process for direct reduction of iron ore was the fruition of research efforts begun by Hojalata y L.mina, S.A. (later known as Hylsa), at the beginning of the 1950s. After the initial evaluation of the concept, it was decided to install a process using a tunnel furnace and several runs were undertaken. The first batch was made by using an ancient furnace (which had been

Mines and Metals Engineering PERED

Output from the PERED® Direct Reduction plants can be in any form: Cold DRI, Hot Briquetted Iron (HBI) Combination of Cold DRI / HBI, Hot DRI / Hot Briquetted (HBI) Cold DRI / Hot DRI combination . The Direct Reduction process converts iron oxides, in the form of pellets or lump ore, to highly reduced product suitable for steel making. PERED® a "Direct Reduction

Potential for CO2 emissions reduction in MIDREX direct

DRI (Direct Reduced Iron) Direct Reduction: The removal of oxygen from iron ore without melting TFe%:90-94, MFe%:83-89, Met%:92-95, Carbon%:1.0-3.5, Gang%:2.8-6.0 . 4 World DRI Production & Shipment 0% 2% 4% 6% 8% 10% 12% 14% 16% 18% 20% 0 10 20 30 40 50 60 70 80 1975 1980 1985 1990 1995 2000 2005 2010 DRI Production, DRI Shipment(Mt/y) DRI

Beneficiation Plants and Pelletizing Plants for Utilizing

*2 Plant Engineering Dept., Iron Unit Div., Engineering Business *3 Ironmaking Dept., Kakogawa Works, Iron & Steel Business Recently, the grade of iron ore deposits has deteriorated and further development of low grade deposits is desired. Presently, the most effective and often followed route taken to utilize such deposits is the provision of beneficiation plants for upgrading iron

Home Midrex Technologies, Inc.

Direct reduction technology. 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 dedicated to continual support of your MIDREX® Plant.

Midrex® the world’s leading direct-reduced iron

05.11.2015· 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 k...

Chapter 6 Smelting reduction technology Universiteit Utrecht

direct reduction technology has began to be used on a wider scale. Direct reduced iron (DRI or sponge iron) is increasingly processed in mini-mills, primarily in developing countries where cheap natural gas is available [IISI, 1998; Chatterjee, 1994; Astier, 1991]. Direct reduction facilities are usually not built at the site of mini-mills

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

Corex Process for Production of Iron IspatGuru

Fig 2 Schematic view of main Corex plant sections. Iron ore (lump ore, pellets, or a mixture thereof) is charged into the reduction shaft, where it is reduced to direct reduced iron (DRI) by the reduction gas in counter flow. The materials descend in the reduction shaft by gravity. The reduction gas around 800 deg C to 850 deg C and with more than 3 kg/sq cm pressure moves in the counter

Sponge Iron Production by Direct Reduction of Iron

This book provides a fascinating study of the very important emerging field of direct reduction in which iron ore is ‘directly reduced’ in the solid-state, using either natural gas or non-coking coal, to produce a highly metallised material, referred to as sponge iron (or direct reduced iron).

Direct reduced iron and production of DRI part 2

11.03.2016· Direct reduced iron and production of DRI part 2 MIDREX PLANT AUTOMATION DEMO BASED ON 3D SCADA CONTROL SYSTEM Duration: 3:41. ESEPRIN 22,281 views. 3:41. Chemistry Extraction of Iron in

Iron Reduction Technologies TENOVA

HYL / ENERGIRON ZR process technology with integrated CO2 absorption system represents with more than 40 references and lowest plant emissions (NOx, SCR, dust) the benchmark in the field of iron reduction technologies.

The Making of Iron & Steel SEAISI

Reduction: lronmaking Iron ore, as mined, is a combination of iron with oxygen and various other unwanted substances, generally known as "gangue". The first metallurgical step is to reduce iron ore to metallic iron, a process which is mostly carried out in a blast furnace, using coke as both a fuel and reducing agent. The metallic iron produced


assistance, not only in the DR plant but in the steel mill as well. Further, Danieli and Tenova can provide complete steel mill projects covering materials handling, direct reduction, EAF meltshop, casting and rolling and product finishing lines. What makes Energiron unique: _No raw materials limitation _Best Carbon-Iron units mix

Detailed Modeling of the Direct Reduction of Iron Ore in

The direct reduction (DR) of iron ore, usually followed by electric arc steelmaking, is an alternative route to the standard, blast furnace, basic oxygen route for making steel. Annual DR iron production (86 Mt in 2017) remains small, compared to the production of 1180 Mt of blast furnace pig iron .

News + Resources Midrex Technologies, Inc.

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schematic diagram iron ore beneficiation plant india

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