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CHAPTER-11 FUNDAMENTALS OF IRON ORE SINTERING

CHAPTER-11 FUNDAMENTALS OF IRON ORE SINTERING R. P. Bhagat INTRODUCTION The process of sinter making originated from a need to make use of fines generated in mines and in ore benefiCiation plants. With the development of sintering technology, a ... TATA STEEL, Schwelgerm and Ruhort (No.6) that Coke rate and productivity are

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APPLICATION OF OPTICAL BASICITY TO VISCOSITY OF .

APPLICATION OF OPTICAL BASICITY TO VISCOSITY OF HIGH ALUMINA BLAST FURNACE SLAGS D. Ghosh*, V.A. Krishnamurthy*and S.R. Sankaranarayanan#,* *Department of Metallurgical and Materials Engineering, National Institute of Technology Tiruchirappalli, Tiruchirappalli – 620 015, India

  • Published in: Journal of Mining and Metallurgy, Section B · 2010Authors: D Ghosh · V A Krishnamurthy · S R SankaranarayananAffiliation: National Institute of Technology TiruchirappalliAbout: Blast furnace · Liquidus · Viscosity · Ground granulated blast-furnace slagGet Price

A compilation of slag foaming phenomenon research

slag, which affect the foaming phenomenon of the slag-steel system, appear to be relatively complicated to control in the manufacture of stainless steel. The foaming index is a parameter that quantifies the ability of slag to generate foam from either injected gas or gas that is .

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(PDF) Effect of Steel Making Slag on Castability of Medium ...

CaS formation is influenced by the steel composition (Sulfur, Calcium, Aluminium and total Oxygen contents) [5,8]. One of the major practical difficulties in steel melting shop was controlling the slag carry over at primary steel making sections while tapping. This primary slag is highly oxidizing nature contains 15-20% of FeO + MnO [13].

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Steel - Primary steelmaking | Britannica

Steel - Steel - Primary steelmaking: In principle, steelmaking is a melting, purifying, and alloying process carried out at approximately 1,600° C (2,900° F) in molten conditions. Various chemical reactions are initiated, either in sequence or simultaneously, in order to arrive at specified chemical compositions and temperatures. Indeed, many of the reactions interfere with one another ...

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Basic oxygen steelmaking - Wikipedia

Basic oxygen steelmaking is a primary steelmaking process for converting molten pig iron into steel by blowing oxygen through a lance over the molten pig iron inside the converter. Exothermic heat is generated by the oxidation reactions during blowing. The basic oxygen steel-making process is .

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(PDF) Application of optical basicity parameter to foaming ...

Application of optical basicity parameter to foaming of slags ... thereby making it possible to compare the basicity of media for which comparisons based upon the Brønsted-Lowry or Lux-Flood ...

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Quality of Lime for Steelmaking in Converter – IspatGuru

Sep 08, 2015 · Basicity, calcined lime, converter, lime, reactivity, slag, steelmaking, Quality of Lime for Steelmaking in Converter. ... The lime quality was obviously less important at that time because the open hearth process for making steel had a smelting period of 6 to 8 hours. With the introduction of the basic oxygen converter (BOF), the process of ...

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EAF dust: An overview on the influences of physical ...

Electric-arc furnace dust (EAFD) is one of the several process residues generated in mini mills during steel production. The presence of valuable zinc in EAF dust and the rising costs for waste disposal are the motivating factors for EAFD recycling or its incorporation into other materials.

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SLAG ANALYSIS SOLUTIONS - Bruker

Effective steel production goes hand-in-hand with effective slag control • production capacity (number of heats) ... By fixing basicity and temperature, the phase relations as a function of ... slag analysis in your plant It's the right tool for the metallurgist and the operators

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SLAG - IRON AND STEEL - ibm.nic

SLAG - IRON AND STEEL 16 Slag - Iron and Steel S lag is a by-product generated during manufacturing of pig iron and steel. It is produced by action of various fluxes upon gangue materials within the iron ore during the process of pig iron making in blast furnace and steel manufacturing in steel .

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What is the purpose of limestone in a blast furnace? - Quora

Nov 14, 2017 · limestone is used to remove impurities in the furnace and the main impurity of the blast furnace is silica (sand and rock) which is silicon dioxide. silicon dioxide is a solid at furnace temperatures so it reacts with calcium oxide from the decomp...

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What is the difference between BF pellets and DR pellets ...

Jul 29, 2015 · Pellets are substitute to Calibrated lump ore. now the question where do you want to substitute them? in Blast furnace? or DRI plants? ( again in DRI plants, what technology DRI plant? coal based horizontal rotary kiln or gas based vertical kiln?)...

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Iron & Steel Making - askmemetallurgy

askmemetallurgy provides you lots of fully solved Metallurgical Engineering (Iron & Steel Making) questions and answers with Explanation. All students, freshers can attemp or download Metallurgical Engineering Physical Metallurgy quiz questions with answers as PDF files and eBooks.

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Comparative Analysis of Dolomitic Lime and Chinese ...

steelmakers in making significant improvements in productivity and cost effective steel production. Below is a quick review of key points from their findings done in the last few years: 1, 4,14 • Five oxides typically are monitored in the EAF slag, CaO, SiO 2, MgO, FeO and Al 2 O 3. These are used to determine slag basicity.

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CA1074125A - Reducing material for steel making - Google ...

REDUCING MATERIAL FOR STEEL MAKING Abstract of the Disclosure During reducing period in steel making, particularly in making of stainless steel, reduction of oxides in the slag and desulphurization of the molten steel are promoted by adding a reducing material which is prepared by mixing uniformly aluminum powder and lime and the like and com-pression molding the mixture into a desired shape.

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Filler Metal Flux Basicity Determination Using the Optical ...

phosphorus removal in steel-making pro­ cesses. Several researchers have pro­ posed modifications of Equation 3 to include other oxides in the basicity index expression (Refs. 5-7). In 1969, exactly 100 years after Mra­ jek's basicity expression was published, Tuliani and his coworkers (Ref. 8) pro­ posed a basicity index expression given by:

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Slag Foaming Fundamentals - A Critical Assessment

the variation of basicity, viscosity and chemical composition of the slag. 2. Foamy Slag 2.1. Foamy Slag Formation Foamy slag formation can be divided into 3 steps (Figure 1). Step 1, which is O 2 injection in liquid steel phase, step 2, which is carbon injection into the slag, and step 3, which is when O 2 is injected into the slag.

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Slag - Wikipedia

Slag from steel mills in ferrous smelting, on the other hand, is designed to minimize iron loss and so mainly contains oxides of calcium, silicon, magnesium, and aluminium. Any sandy component or quartz component of the original ore automatically carries through the smelting process as silicon dioxide.

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(PDF) Application of optical basicity parameter to foaming ...

Application of optical basicity parameter to foaming of slags ... thereby making it possible to compare the basicity of media for which comparisons based upon the Brønsted-Lowry or Lux-Flood ...

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Effect of Slag Composition on Phosphorus Separation from ...

Some researches on phosphorus removal from steel-making slag have been reported. For example, Shiomi et al.5) reduced synthesized steelmaking slag with basicity ... basicity, most of the metal cohered and no magnetic slag was obtained because the slag sample melted. In the experi-

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