demerit of sponge iron

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US2880083A

Another process to avoid the disadvantages referred to has been to char the coal in the presence of lime prior to the production of sponge iron. This however...

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Study of Steel from Sponge Iron

The disadvantages of induction furnace are: i. Life of basic lining is low. ii.Low temperature of slag, which is heated from the metal....

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SPONGE IRON

Best Practices Manual for Reducing GHG Emissions in Iron & Steel (Sponge Iron) Sector These emissions limitation commitments are listed in Annex B of the....

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Advantages of Sponge Iron Consumption in EAF Compared

Realization of steel products standard chemical analysis when using sponge iron in EAFs: Continuity of analysis in the product. Less Sulfur and phosphorus. Also,...

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A Thesis On PREPARATION AND

Taking into account all the above mentiond demerits a new process known as Direct The coal base DRI rotary kiln used for the production of sponge iron with....

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IS 12668 (1989): Melting characterstics of sponge iron/direct

1 Jun 2010 iron/direct reduced iron (DRI) [MTD 30: Sponge Iron and. Smelting Reduction] that one of the major disadvantages of Indian pig iron is that it...

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Direct reduced iron

Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron temperature, only about 1,100 °C or so. The disadvantage, relative to a blast furnace, is that only small quantities can be made at a time....

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energy integration in sponge iron plant using heat of

Waste gas from the rotary kiln of the sponge iron plant exits at a temperature around integration techniques to overcome all the shortcomings in the process....

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Sponge Iron

DRI, also known as sponge iron, is the product of reducing iron oxide in the form of However, in some cases, the reduction limitation can change from carbon...

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reduction behaviour of iron ore pellets

Demand of sponge iron and pre-reduced pellets for the manufacture of different varieties the disadvantages inherent to the process led to the development of...

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Effect of Amount of Carbon on the Reduction Efficiency of Iron

8 Apr 2016 productivity due to heat transfer limitation that restricts a few layers on the hearth. [3] Freshly produced iron at the later stages of reduction is supposed to P.C. Pradhan: Hand book of Sponge Iron for Rotary Kiln, Sri R. N ....

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Processes for phosphorus removal from iron ore

The disadvantage of using nitric acid was the formation of NO2 or NH4+. The main conclusions of the researchers were: The content of the final match of sinter met...

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What are the advantages and disadvantages of high silica in

However in sponge iron making (DRI) the SiO2 / Al2O3 ratio should preferably be 1. Higher SiO2 in ore causes accretion formation in DRI kiln. A balanced Al2O3...

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Full article: PROPERTIES AND FEATURES OF DIRECT

31 Jan 2007 However, the disadvantages inherent to the process led to the Thus, due to this porous structure, DRI is often called sponge iron. It should be...

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Sponge Iron | Tata Steel BSL Ltd.

Sponge iron, also called direct reduced iron, is the product created when iron ore is reduced to metallic iron, usually with some kind of carbon (charcoal, etc),...

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Sponge iron industries are killing fields

Sponge iron plants are 'red category' industries, which means they have very high pollution potential and can cause serious health hazards. The manufacturing...

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Inhibition of reoxidation of direct reduced iron (DRI) or sponge

5 Nov 2014 Special Issue: Steel and Direct Reduced Iron (sponge Iron) Industry. Vol. 4, No. disadvantages of this process are ,sodium silicate which....

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Iron Sponge | AMERICAN ELEMENTS ®

Iron Sponge Fe bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term contracts & credit cards/PayPal accepted....

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US3165398A

Further, sponge iron has a disadvantage of so low thermal conductivity that fine iron grains are liable to reoxidize and enter the slag before they melt, resulting in...

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Mathematical Modeling of the Melting of Sponge Iron in a Bath

Keywords: sponge iron, Electric Arc Furnace, melting time Another limitation of small particle size DRI is a decrease in metallic yield because many of those...

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Optimization of Operating Parameters for Sponge Iron

Keywords: Sponge iron process, Rotary kiln, ANN topologies, Optimum input Due to limitation of the pages of journal complete data of day-1 is shown in Table...

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reoxidation of sponge iron is an exothermic process

Taking into account all the above mentioned demerits a new process known as Direct Reduction of Iron (DRI) process has been developed for. Iron making....

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