of steelmaking slag

Utilization of steelmaking slag in Japan and the recent progress

In Japan about 40 million tons of slags are generated during iron and steelmaking process annually thus investigations into the effective utilization of such large amount of by product always attract attentions In this paper the production chemical characteristics and recent utilization of slag in Japan especially steelmaking nbsp …

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Efficient removal of arsenic V from water using steel making slag

Water Environ Res 2014 Jun 86 6 524 31 Efficient removal of arsenic V from water using steel making slag Chakraborty A Sengupta A Bhadu MK Pandey A Mondal A This study describes the potential use of steel making slag as an arsenic removal medium Systematic analysis of slag material revealed a nbsp …

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Chemical Mineralogical and Morphological Properties of Steel Slag

27 Jul 2011 After all the steel is removed from the basic oxygen furnace it is tilted again in the opposite direction to pour the liquid slag into ladles The slag generated from a steelmaking cycle is later processed and the final product after processing is referred to as basic oxygen furnace slag BOF slag The chemical nbsp …

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New Applications for Iron and Steelmaking Slag CiteSeerX

New Applications for Iron and Steelmaking Slag Tatsuhito Takahashi and Kazuya Yabuta Chief Engineer Dr Steel Technology Center Manager Dr Ceramic Engineering Lab Applied Technology Research Center Iron and steelmaking slag is a by product of the iron and steelmaking process Slag has nbsp …

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Production of calcium carbonate from steelmaking slag and

12 Dec 2016 The X2PCC pilot plant produces precipitated calcium carbonate PCC from calcium extracted from steel slag and CO2 gas This work investigates the carbonation process in order to optimise it to produce PCC of the desired morphology and size A literature review is presented showing the potential effects nbsp …

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Utilization of steel making slag for the uptake of ammonium and

Steel making slag a waste by product of the Steel Industry constitutes a major disposal problem In the present study excellent adsorbent materials for reducing eutrophication in wastewaters have been prepared from this slag Heated samples of acid treated slag and mixtures of slag with kaolinite and Al OH 3 were nbsp …

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Types of iron and steel slag NIPPON SLAG ASSOCIATION

The iron and steel slag that is generated as a byproduct of iron and steel manufacturing processes can be broadly categorized into blast furnace slag and steelmaking slag nbsp …

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Ex Situ CO2 Capture by Carbonation of Steelmaking Slag Coupled

4 Mar 2013 Using CO2 from flue gases as the stabilizing and neutralizing agents could also diminish CO2 emissions In this investigation ex situ hot stove gas containing 30 vol CO2 in the steelmaking process was captured by accelerated carbonation of BOF slag coupled with CRW in a rotating packed bed RPB …

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Enhancement of the cementitious properties of steelmaking slag

The overall objective of this work was to determine whether steel slag might be processed into a sufficiently cementitious material to allow it to be recycled as an additive to ordinary Portland cement clinker Steel slag has limited cementitious properties due to both a lack of tricalcium silicate and the presence of wustite solid nbsp …

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Use of Steel making Slag as a soil conditioner to improve the

Paper ID 109 th Proceedings of the Waste Safe 2015 – 4 International Conference on Solid Waste Management in the Developing Countries 15 17 February 2015 Khulna Bangladesh USE OF STEEL MAKING SLAG AS A SOIL CONDITIONER TO IMPROVE THE SATBILITY OF SOIL FOR LAND DEVELOPMENTS T …

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Effect of Slag Composition on Phosphorus Separation from J Stage

Steelmaking slag is recycled and reused but its utilization is restricted due to its chemical properties On the other hand steelmaking slag is considered to be a promising resource of iron and phosphorus in Japan In this work reduction of FetO and P2O5 in steelmaking slag and recovery of iron and phosphorus …

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Steelmaking slag beneficiation by magnetic separator doiSerbia

Steelmaking Slag Beneficiation by Magnetic Separator and Impacts on Sinter Quality Ö S Bölükbaşı1 B Tufan1 1Department of Mining Engineering Dokuz Eylül University 35160 Izmir Turkey Abstract Basic oxygen furnaces BOF slag is the main problem at all iron and steel factories About more than 6 million nbsp …

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Metals Free Full Text Roles of Mineralogical Phases in Aqueous

18 May 2016 Mineralogical phases of steelmaking slags have significant influences on the carbonation of the slags In this paper the effects of temperature and reaction time on the conversion of calcium related phases and the carbonation degree of a slag sample were studied The experimental conditions were a nbsp …

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The performance of steel making slag concretes in the hardened state

Some uncertainties relating to steelmaking slag concretes are described in the literature under review and further investigation is needed before these materials fully comply with all the relevant standards on structural concrete Therefore the main objective of this research concerns concrete that blends slag aggregates nbsp …

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3 5 Characteristics of steelmaking slags Global CCS Institute

Discussion of the characteristics of steelmaking slags is relevant due to their widespread use Steelmaking slags are usually classified into the following categories 45 Air cooled blast furnace slag BFS is a by product of iron manufacturing in which silica and alumina constituents combine with lime to form a molten slag nbsp …

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NATIONAL SLAG ASSOCIATION

STEELMAKING SLAG A SAFE AND VALUABLE PRODUCT Page 3 Producing BF BOF and EAF slags is an important step in the iron steel making process During this process substances that are incompatible with iron and steel are removed by forming complex metallic and nonmetallic oxides Chemically steelmaking …

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recycling of steelmaking slag from electric arc furnace

The paper presents results of research of demetallized EAF slag recycling into charge of electric arc furnace Effects of recycling on steelmaking process parameters on composition of steel and slag are discussed Economic and environmental benefits of proposed technology are presented Key words electric arc furnace nbsp …

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Production and utilisation of iron and steelmaking slag in Japan and

In Japan about 40 million tonnes of slag is generated annually during the iron and steelmaking process This large amount of byproduct warrants investigation on its disposal In this study the production chemical characteristics and use of iron and steel slag in Japan especially converter slag have been reviewed Then nbsp …

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Growth promotion of Spirulina by steelmaking slag application of

12 Oct 2016 A solubility diagram was employed to understand growth promotion of Arthrospira Spirulina platensis by steelmaking slag SMS The growth promotion effect of 112 of freshwater microalga A platensis was obtained using 5 g L SMS However metabolites such as pigments and protein content of A …

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Kinetics of Aqueous Leaching and Carbonization of Steelmaking Slag

Kinetics of Aqueous Leaching and Carbonization of Steelmaking Slag S N LEKAKH C H RAWLINS D G C ROBERTSON V L RICHARDS and K D PEASLEE Sequestration of carbon dioxide by steelmaking slag was studied in an atmospheric three phase system containing industrial slag particles water and CO2 gas …

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Concrete Produced by Steel Making Slag Basic Oxygen Furnace

A steel making slag basic oxygen furnace obtained from the Kardemir Steelworks was modified to be used as a clinker additive in the cement industry This study confirmed that the compressive strength values of concretes produced by addition of these steel making slags up to 30 mass were within the values of nbsp …

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Activity of Iron Oxide in Steelmaking Slag SpringerLink

Most refining reactions in steelmaking involve oxidation of impurity element s The product s of oxidation either dissolve in the slag or escape as gaseous phase The activities of oxygen in the metal hO and that of FeO in slag aFeO are major factors controlling these chemical reactions The activities of oxygen and nbsp …

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Steel making slag ispatguru com

12 Apr 2013 Steel making slag is defined as the solid material resulting from the interaction of flux and impurities in the smelting and refining of steels It is a by product of steel making It is produced during the separation of the molten steel from impurities in steel making furnaces The slag occurs during steel making in nbsp …

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Effect of Slag Composition on Phosphorus Separation from J Stage

Steelmaking slag is recycled and reused but its utilization is restricted due to its chemical properties On the other hand steelmaking slag is considered to be a promising resource of iron and phosphorus in Japan In this work reduction of FetO and P2O5 in steelmaking slag and recovery of iron and phosphorus nbsp …

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Lecture 4 Slag in steelmaking Contents Preamble The role nptel

Lecture 4 Slag in steelmaking Contents Preamble The role of slag in steelmaking Structure of pure oxides Structure of pure silica Network former and breaker oxides Structure of slag Keywords Steelmaking synthetic slag Electric steelmaking BOF steelmaking Preamble Slag plays a very important role in nbsp …

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Performance of steel making slag concrete reinforced with fibers

Performance of steel making slag concrete reinforced with fibers Vanesa Ortega López1 José Antonio Fuente Alonso2 Marta Skaf2 Amaia Santamaría3 Ángel Aragón1 and Juan Manuel Manso1 1 Department of Civil Engineering University of Burgos C Villadiego s n 09001 Burgos Spain 2 Department of nbsp …

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Processing and Reusing Technologies for Steelmaking Slag

Processing and Reusing Technologies for Steelmaking Slag Kazuhiro HORII Naoto TSUTSUMI Yoshiyuki KITANO Toshiaki KATO Abstract About 40 million tons of steel slag a year which is the by product of iron and steel manu facture is generated in Japan and the almost all the slag is reused for the materials e g ce nbsp …

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Utilization of ironmaking and steelmaking slags

technical University of košice košice slovakia Utilization of ironmaking and steelmaking slags introdUction smelting of hammerable iron and its treatment in antiquity and Medieval produced also by product slag Because of small yields of iron the process produced only small amounts of slag that did not attract attention …

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FACT SHEET Steel industry by products Worldsteel

plants often use a mix of DRI and recycled steel feeds On average the production of one tonne of steel results in 200 kg EAF to 400 kg BF BOF of by products These include slags dusts sludges and other materials Ironmaking and steelmaking slags More than 400 million tonnes of iron and steel slag is produced each …

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Fundamental Research on a Rational Steelmaking Slag Pyro co za

Fundamental Research on a Rational Steelmaking Slag Recycling System by Phosphorus Separation and Collection Kenji Nakase1 Akitoshi Matsui1 Naoki Kikuchi1 Yuji Miki1 Yasuo Kishimoto2 Itsuo Goto3 and Tetsuya Nagasaka4 1 Steelmaking Research Dept Steel Research Laboratory JFE Steel nbsp …

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Development of Heat Recovery System from Steelmaking Slag

Abstract JFE Steel has been developing a technology of sensi ble heat recovery from steelmaking slag as one of the themes in Incorporated Administrative Agency New Energy and Industrial Technology Development Organization NEDO project Environmentally Har monized Steelmaking Process Technology nbsp …

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Development of large steelmaking slag blocks using a new

5 May 2015 Porous slag blocks 1 m3 were produced by carbonation of steelmaking slag over a period of 12 days The compressive strength and bulk density of the blocks were 18·4 ± 3·3 MPa and 2·4 g cm3 respectively To make a large block the optimum amount of water and bulk density of the compact were nbsp …

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Evaluation of the economic feasibility of a SAGE Journals

In 2014 Brazil produced 33 9m t of steel corresponding to 2 of the world production and 52 of the Latin American production IABr 2014 The steel industry generated in total 19 2m t of resi due from which almost 11 5m t 60 comprised steelmaking slag IABr 2014 In another words each tonne of raw steel pro …

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Recovery of Steelmaking Slag and Granite Waste in the Production

12 Jan 2015 necessary to produce the rock wool Recovery of Steelmaking Slag and Granite Waste in the Production of Rock Wool Joner Oliveira Alvesa Denise Crocce Romano Espinosab Jorge Alberto Soares Tenóriob aSENAI Innovation Institute of Mineral Technologies Federation of Industries of the State of …

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Common Uses for Slag National Slag Association

Slag 39 s ain 39 t Slag 39 s SLAG is a broad term covering all non metallic co products resulting from the separation of a metal from its ore Its chemistry and morphology depends on the metal being produced and the solidification process used Slags can be broadly categorized as ferrous iron steel and non ferrous copper nbsp …

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Steel Slag Material Description User Guidelines for Waste and

ORIGIN Steel slag a by product of steel making is produced during the separation of the molten steel from impurities in steel making furnaces The slag occurs as a molten liquid melt and is a complex solution of silicates and oxides that solidifies upon cooling Virtually all steel is now made in integrated steel plants using a nbsp …

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Dephosphorization of Steelmaking Slag by Leaching with Acidic

18 Dec 2015 Abstract In the present paper dephosphorization of steelmaking slag by leaching with acidic aqueous solution composed of citric acid sodium hydroxide hydrochloric acid and ion exchanged water was investigated The buffer solution of C6H8O7 NaOH HCl system prevented changes in the pH values …

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Kinetics of Dephosphorization from Steelmaking Slag By Leaching

2 Feb 2016 Kinetics of Dephosphorization from Steelmaking Slag By Leaching With C6H8O7 Naoh Hcl Solution Randolph E Kirchain Bart Blanpain Christina Meskers Elsa Olivetti Diran Apelian John Howarter Anne Kvithyld Brajendra Mishra Neale R Neelameggham and Jeff Spangenberger Yong Qiao1 nbsp …

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Possible Uses of Steelmaking Slag in Agriculture An InTechOpen

16 Mar 2012 Possible Uses of Steelmaking Slag in Agriculture An Overview Teresa Annunziata Branca and Valentina Colla Scuola Superiore Sant 39 Anna PERCRO TeCIP Institute Italy 1 Introduction Slags are the main by products generated during iron and crude steel production and the steel industry is nbsp …

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Slag Wikipedia

Slag is the collection of compounds that are removed In many smelting processes oxides are introduced to control the slag chemistry assisting in the removal of impurities and protecting the furnace refractory lining from excessive wear In this case the slag is termed synthetic A good example is steelmaking slag nbsp …

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