retort process of sponge iron

retort process of sponge iron

Coal based Direct Reduction Rotary Kiln Process – IspatGuru

Boudouard reaction, dolomite, DRI, Iron ore, metallization, non coking coal, pellets, reduction, Rotary kiln, Sponge iron, Sulphur, Coal based Direct Reduction Rotary Kiln Process . The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials.

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SPONGE IRON PLANT

The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non-Coking coal. Limestone, in small quantities, is also required to scavenge the sulphur. IRON ORE The quality requirement of Sized ore for sponge iron

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retort process of sponge iron - loopevenementendenhelder.nl

A lantern retort for small. or brownish due to its reaction with iron The Thermex retort is thought to be , remove the sponge gold , and the amalgam during the heating process The retort ....

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(PDF) i) Direct Reduced Iron: Production - ResearchGate

This product is known as direct reduced iron (DRI) or sponge iron. Processes that produce iron by reduction of iron ore (in solid state) below the melting point are generally classified as DR ...

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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. Direct reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting ...

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Carbothermic process - Kinglor Metor S.p.A.

Feb 19, 1980  A carbothermic process and apparatus for converting iron ore directly to sponge iron in a vertical retort is described. A reaction charge of iron ore, reducing agent, and additives if employed is charged to a vertical retort having in reciprocal cooperation and coordination as a first stage a pre-heating operation wherein the reaction mixture descends in the retort at a constant speed, the ...

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Iron Sponge Process - an overview ScienceDirect Topics

The iron sponge process selectively removes H2 S from gas or liquid streams. The process is limited to treating streams containing low concentrations of H 2 S at pressures ranging from 170 to 8300 kPa (ga). The process employs hydrated iron oxide, impregnated on wood chips. Care must be taken with the iron sponge bed to maintain pH, gas ...

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Chapter 3. Modern carbonising retort systems

Where complex retort systems are used for charcoal making the simplest approach is undoubtedly to use the whole of the off-gases as a source of heat for carbonisation and if there is an excess to burn the gases for power or process heat generation. Some of the retort systems described earlier in this chapter recover the heat in the off-gases ...

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Retort Processes Retorts

The Saturated Steam Process is the oldest method of in-container sterilization. Since air is considered an insulating medium, saturating the retort vessel with steam is a requirement of the process. It is inherent in the process that all air be evacuated from the retort by flooding the vessel with steam and allowing the air to escape through ...

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SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE

In the year 1908 use of tunnel kiln started for iron oxide reduction. This process was invented by E.Sieurin as Hoganas process [3]. In 1954, more kilns came in operation in SWEDEN and USA. Presently it is more popular in China for sponge iron production from beneficiated iron ore fines cakes. In this process, the material passes through

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Sponge Iron - SEIL

Steel Exchange India Limited is having a Sponge Iron manufacturing unit in technical collaboration with world renowned M/s Mannesmann Demag of Germany (CODIR Process). With an installed capacity of 2x350TPD and can able to produce Sponge Iron of 0.225 Million Tons per Annum 1. The main raw materials used for the production of sponge iron is ...

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Sponge iron making process - LinkedIn SlideShare

Nov 09, 2014  Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 2. IRON ORE • Iron = 65-67 % • SiO2 + Al2O3 = 2-3 % • CaO + MgO = 0,5-1 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 5-18 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical Composition

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Hydrogen production by steam–iron process - ScienceDirect

The sponge iron process requires re-heating after the oxidation to raise the temperature to about 800°C, as reduction is an exothermic process. The heat is supported by lean gas combustion. We established the number of retorts as follows:

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SPONGE IRON PRODUCTION FROM ORE -COAL

In the year 1908 use of tunnel kiln started for iron oxide reduction. This process was invented by E.Sieurin as Hoganas process [3]. In 1954, more kilns came in operation in SWEDEN and USA. Presently it is more popular in China for sponge iron production from beneficiated iron ore fines cakes. In this process, the material passes through

More

Simulation of Rotary Kiln Used in Sponge Iron Process ...

Simulation of Rotary Kiln Used in Sponge Iron Process Using ANN IACSIT International Journal of Engineering and Technology, Vol. 6, No. 2, April 2014 DOI: 10.7763/IJET.2014.V6.673 95 Abstract—In the present study, estimation of actual output parameters is carried out for a sponge iron production process

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Powder metallurgy - Wikipedia

Sponge iron process. The longest established of these processes is the sponge iron process, the leading example of a family of processes involving solid state reduction of an oxide. In the process, selected magnetite (Fe 3 O 4) ore is mixed with coke and lime and placed in a silicon carbide retort. The filled retort is then heated in a kiln ...

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SL - RN (Iron Making Rotary Kiln Process for DRI ... - YouTube

Nov 01, 2015  Midrex® the world’s leading direct-reduced iron production process - Duration: 2:26. Primetals Technologies 16,447 views. 2:26. DIY Brick Rocket Stove ...

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Mercury Retorting - Mineral Processing Metallurgy

In the horizontal retort the amalgam is placed in iron trays divided into compartments by partitions. In either case, the retorted metal is prevented from adhering to the iron, either by laying it on three or four thicknesses of paper, the ashes of which remain beneath the amalgam, or by covering the iron trays with a coating of whitening.

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Study on Accretion Formation on DRI kiln during spong

Study on Accretion Formation on DRI kiln during spong iron production Chandrashekhar shrivas, Himanshu shrivas Abstract---Today is an era of competition, and contrary to this the Iron and steel industries are also suffering from the same. One of the major challenges for sponge iron plant is the Accretion formation. Through this

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Carbothermic process for producing sponge iron and the ...

Dec 30, 1980  Sponge iron and excess coal are withdrawn from a cooling zone of the retort after it has been cooled below the air oxidation temperature of the sponge iron, the withdrawal rate being controlled in order that the momentary speed of descent of the mixture within the retort is constant at every point in any one single horizontal section of the retort.

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A Thesis Submitted for Partial Fulfillment of the Degree ...

Exceptionally in the fluidized bed process sized iron ore particles are used. Few selected ores are suitable for direct reduction process. Sponge iron is produced in a powdered form so, it acts as a good raw material that can very well mixed with other metals in the production of different types of iron

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CN1804049A - Tunnel kiln without exterior combustion ...

The relates coal-base direct reduction process for sponge iron with different shape by tunnel kiln without outer combustion chamber and the combination comprises as shown in abstract figure: to iron concentrate, firing pellet, cooling or compacting; preparing the reducer; blending, loading into retort; entering the kiln; out the kiln; and sorting.

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WELSPUN STEEL LIMITED

The process of sponge iron making aims to remove the oxygen from iron ore. The quality of sponge iron is primarily ascertained by the percentage of metallization (removal of oxygen), which is the ratio of metallic iron to the total iron present in the product. Sponge iron manufacture is highly sensitive to raw material characteristics.

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Sponge iron production in tunnel kiln – Aramico Company

Although iron powder could be produced in sponge iron tunnel kiln production line and it is the main raw material for powder metallurgy production lines. Process In sponge iron production plant by tunnel kiln method, after crushing and screening raw materials, iron ore, coal and limestone are mixed and charged in storage bins in certain ratios.

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Sponge iron making full process_Coal base DRI - YouTube

Dec 24, 2018  Direct reduced iron (DRI), also called sponge iron,[1] is produced from the direct reductionof iron ore (in the form of lumps, pellets, or fines) to iron

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(PDF) Analysis of temperature profile and % metallization ...

Analysis of temperature profile and % metallization in rotary kiln of sponge iron process through CFD Article (PDF Available) in Journal of the Taiwan Institute of Chemical Engineers 63 March ...

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Powder Production Technologies - Powder Metallurgy Review

The sponge iron process. The longest established of these processes is the sponge iron process, the leading example of a family of processes involving solid state reduction of an oxide. In the process, selected magnetite (Fe3O4) ore is mixed with coke and lime and placed in a silicon carbide retort.

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ENGINEERING NATIONAL INSTITUTE OF TECHNOLOGY,

The process of DRI or sponge Iron making can be classified into different categories, which are as follows. 1.4.1 Rotary Kiln Processes Rotary Kiln Processes are very useful for Sponge Iron Production using non-coking ... 1.4.2 Retort Process In Retort process the reactor vessel is a retort where the charge is fed from top end

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Tunnel Kiln Process For Sponge Iron Making

Retort Process Of Sponge Iron . Price For Tunnel Kiln For Sponge Iron 16 Price For Tunnel Kiln For Sponge Iron Production of Sponge Iron, . Get Price And Support Online; ... tunnel kiln process for sponge iron making - YouTube. 13 May 2015, Here all Gulin machines are designed produced, assembled and texted according to the ISO9001:2008 ...

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Sand Processing To Produce Sponge Iron

The sponge iron process. The longest established of these processes is the sponge iron process, the leading example of a family of processes involving solid state reduction of an oxide. In the process, selected magnetite (Fe3O4) ore is mixed with coke and lime and placed in a silicon carbide retort.

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Energy Audit Methodology of Sponge Iron Manufacturing ...

Most of the plants in India use DRI process—a solid state direct reduction process by which iron ore is reduced to sponge without phase change (Figure 1). Raw material mix-iron ore, dolomite and coal are fed to one end of rotary Kiln and product sponge iron along with char is taken out from the other end. Apart from this, primary

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calculation on reduction for direct reduced iron in tunnel ...

1 Y FOLLOWED FOR SPONGE IRON This chapter describes the ... Generally in any sponge iron process, reduction is conducted in a refractory lined rotary kiln. ... The coal and iron ore are metered into the high end of the inclined kiln. A .... CO with FeO to form CO2 and metallic iron (Equation II). FeO +

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ASHISH NAZAR - Proprietor - METALLURGICAL CONSULTANTS ...

- High presssure vertcal retort process for production of iron. Reduction is done with coal gas using 100% steam and no air. The gas so formed will have 23% H2 and 70% CO and 7% H2O and gasification retort will be in the same chamber where reduction retorts are placed.

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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.

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Mercury Retort AB Prospecting

Clean the retort heating chamber cavity bowl with alcohol to remove any oils, and allow it to air dry. ... Unscrew the cavity bowl to remove the gold sponge. Store all devices used to process mercury in air tight plastic bags in a secure location. DO NOT allow children to play with these devices.

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Difference Between Sponge Iron and Pig Iron Compare the ...

Apr 30, 2011  The key difference between sponge iron and pig iron is that we can produce sponge iron by direct reduction of iron ore through reducing agents whereas the production of pig iron is by melting iron ore with charcoal and limestone at very high pressures.. Sponge iron and pig iron are different forms of iron that we can produce from iron ores that occurs naturally under the surface of

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A Thesis Submitted for Partial Fulfillment of the Degree ...

Exceptionally in the fluidized bed process sized iron ore particles are used. Few selected ores are suitable for direct reduction process. Sponge iron is produced in a powdered form so, it acts as a good raw material that can very well mixed with other metals in the production of different types of iron

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Clothing Containers – d20PFSRD

Vial, Iron. Source PZO9410. This metal potion bottle has hardness 5, 3 hit points, and break DC 14. Potion Sponge. Source PZO1121. This egg-sized sponge is covered in a layer of waterproof edible wax, designed to absorb 1 dose of a potion. Chewing a potion sponge and swallowing its liquid contents is a full-round action.

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HYL Process for Direct Reduction of Iron Ore – IspatGuru

Apr 22, 2017  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.

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H2S Dry Scrubber Technology Proven Design Enhanced Media

Iron sponge has been used to remove H 2 S from gas streams for more than 100 years and the media is comprised of wood chips coated with iron hydroxide. H2SPlus Systems are currently in use throughout the U.S. treating a variety of gas streams to remove H 2 S mercaptans and reduce SO 2. View Case Studies. How It Works

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