
Blast furnace slag desulfurization

Desulfurization Ability of Blast Furnace Slag Containing High Al
2021年8月2日 In this paper, the effects of B (w (CaO)/ w (SiO 2)) and w (MgO)/ w (Al 2 O 3) on the desulfurization ability of a CaOSiO 2 MgOAl 2 O 3 quaternary blast furnace slag system were studied by using a doublelayer graphite crucible to simulate the process of molten iron 2021年12月1日 In this study, refining slag containing high hydration active component C 12 A 7 was added in GBFS−SS−DG−based clinker−free cementitious material The optimum was The mechanism of hydration reaction of granulated blast furnace 2021年8月2日 In this paper, the effects of B (w (CaO)/w (SiO2)) and w (MgO)/w (Al2O3) on the desulfurization ability of a CaOSiO2MgOAl2O3 quaternary blast furnace slag system were (PDF) Desulfurization Ability of Blast Furnace Slag Containing High 2020年10月1日 This paper studies the mechanical properties and hydration of green concrete which is made from ground granulated blastfurnace slag (GGBS), desulfurization gypsum Green concrete with ground granulated blastfurnace slag

Desulphurisation behaviour of blast furnace slag with high Al
2022年2月20日 The desulphurisation of blast furnace slag is an important metallurgical function of blast furnace smelting To elucidate the desulphurisation behaviour of blast furnace slag 2024年8月1日 In this study, the slags from desulfurization (DeS) and ground granulated blast furnace (GGBS) processes in the steel company waste were applied as the sorbent in CO 2 Investigation on desulfurization and ground granulated blast 2016年5月1日 The results show that C S increases with increasing CaO/SiO 2 and MgO contents in the slag, but decreases with increasing Al 2 O 3 contentDesulphurisation ability of blast furnace slag containing high 2015年9月22日 Through analyzed and regressed the actual productive desulfurization data from the oversize blast furnace (5500 m 3) in north China, the relationship between the sulfur Analysis on the Oversize Blast Furnace Desulfurization and a
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Comprehensive Desulfurization and Dealkalization Capacity of
2018年6月20日 In order to reflect the ability of comprehensive dealkalization and desulfurization of BF slag more accurately, the K2S capacity was proposed The effects of w(CaO)/w(SiO2), 2016年3月24日 The results show that C S increases with increasing CaO/SiO 2 and MgO contents in the slag, but decreases with increasing Al 2 O 3 content The effects of O 2− and O 0 on C S were analysed using multiple linear Desulphurisation ability of blast furnace slag 2024年1月12日 Blast furnace slag (BFS) is commonly used as a substitute for cement clinker due to its hydration properties The mechanism of hydration reaction of granulated blast furnace slagsteel slagrefining slagdesulfurization gypsumbased clinkerfree cementitious materials J Build Eng, 44 (2021), Article Synergistic preparation of highperformance composite blast furnace 2024年6月4日 22 New Metallurgical Wastewater Desulfurization Process Metallurgical wastewater desulphurization process is a new desulphurization process based on the traditional limestonegypsum wet desulphurization process and combined with the chemical characteristics of blast furnace slag waterResearch on Flue Gas Purification Renovation of Blast Furnace Hot Blast
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Compressive Strength and Microstructure Properties of Alkali
22 Mix Proportions and Specimen Preparation Table 3 presents the experimental plan of this study For the weight of BFS, DS was applied at 5, 10, 15, 20, 25, and 30% In addition, G was also applied at 9, 12, and 15% by BFS weight to improve the compressive strength of the alkaliactivated system with BFS and DS2018年12月11日 This study investigates the effect of desulfurization slag (DS) and gypsum (G) on the compressive strength and microstructure properties of blast furnace slag(BFS) based alkaliactivated systems(PDF) Compressive Strength and Microstructure Properties of 2021年2月21日 Introduction Since the early days of iron and steelmaking, sulphur is considered as an unwanted impurity that needs to be removed [Citation 1]Although there are various processes in the modern steelmaking chain where sulphur can be removed, a dedicated hot metal desulphurisation (HMD) process between the blast furnace (BF) and converter (or Optimal hot metal desulphurisation slag considering iron loss 2020年9月30日 Abstract: This paper studies the mechanical properties and hydration of green concrete which is made from ground granulated blastfurnace slag (GGBS), desulfurization gypsum (DG) and electric arc furnace reducing slag (EAFRS) as cementitious materials The green concrete with a water to cementitious materials ratio of 032 yields a compressive Green concrete with ground granulated blastfurnace slag

Transition of Blast Furnace Slag from SilicatesBased to Aluminates
2016年5月6日 The effect of Al2O3 and the Al2O3/SiO2(A/S) ratio on the viscosity of the CaOSiO2Al2O3MgOTiO2 slag system was studied in the present work At a fixed CaO/SiO2(C/S) ratio of 120, 9 mass pct MgO, and 1 mass pct TiO2, the viscosity increases with an increase in Al2O3 content at a range of 16 to 24 mass pct due to the polymerization of the aluminosilicate 2018年10月1日 In the current paper, we have determined the desulfurization ability of a CaO–MgO–SiO2 –Al2 O3 slag system using slagmetal equilibrium technique The chemical composition of slag samples consists of Al2 O3 in the range of 25–30 wt%, CaO/SiO2 ratio (08–16) and MgO (8–16 wt%) All the experiments are conducted at a temperature of 1773 K Study on desulfurization capacity of high alumina blast furnace slag 2023年6月30日 3721 Test Materials and Their Properties The raw materials used in the experiment are mainly iron tailings, granulated blast furnace slag (GBFS) and desulfurization ash (DA) The iron tailings are from Daguoshan beneficiation plant of Ansteel Group Mining Company, and the main mineral phases are quartz, feldspar, mica, amphibole, chlorite, etcStudy on the Preparation of Green LowCarbon BakingFree Bricks 2021年10月11日 To control the SO2 emission and achieve the target of “waste controlled by waste”, a novel desulfurization method with blast furnace dust slurry was proposed The effects of reaction temperature, oxygen concentration, and solid–liquid ratio on SO2 removal efficiency were investigated The optimal conditions were reaction temperature of 35 ℃, oxygen concentration Removal of SO2 from flue gas using blast furnace dust as an
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Sulphur removal in ironmaking and oxygen
2017年3月22日 A sulphur balance is made for the steelmaking process of Tata Steel IJmuiden, the Netherlands There are four stages where sulphur can be removed: in the blast furnace (BF), during hot metal (HM) pretreatment, in the 2013年10月1日 Request PDF Flowability and desulfurization of high alumina blast furnace slag KTH viscosity model was applied to predict the viscosity of blast furnace slag with high content of alumina, and Flowability and desulfurization of high alumina blast furnace slag2024年1月1日 The composition and properties of slag can be controlled by slagging to ensure the quality of pig iron, such as making alkaline slag desulfurization, regulating the basicity of slag, control of silicon, manganese reduction, alkali discharge, etc Blast furnace slag has the function of promoting beneficial elements and inhibiting the reduction of harmful elements, such as SlagForming in Blast Furnace Ironmaking SpringerLink2020年7月1日 Zhang et al (2020) added flue gas desulfurization (FGD) gypsum into the red mud, blast furnace slag, and steel slag ternary system, obtained a new quaternary system grouting material, and Investigation the synergistic effects in quaternary binder
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Comprehensive Desulfurization and Dealkalization Capacity of Blast
2018年6月20日 In order to reflect the ability of comprehensive dealkalization and desulfurization of BF slag more accurately, the K 2 S capacity was proposed The effects of w(CaO)/w(SiO 2), w(MgO) and w(Al 2 O 3) on the ability of comprehensive dealkalization and desulfurization were studied at 1773 K using gasslag equilibrium techniquesThe results showed that with an 2024年6月11日 Slag density in the blast furnace ironmaking process is dependent on a complex set of parameters which govern the thermodynamics and kinetics of the slag formation and transport, respectively [] The slagmetal separation rate is directly influenced by the slag density which affects the productivity of the process [] The network structure of the Al 2 O 3MgO Interproperty Correlation of Al2O3CaOMgOSiO2 Quaternary Slag 2023年6月27日 22 Sample preparation The sample preparation process is shown in Fig 3The PS and GBFS were dried prior to specimen preparation and then dry mixed using a JJ5 planetary mixer according to the ratios in Table 2Then the alkali activator and ionized water were poured into JJ5 planetary mixer to prepare mortar according to Chinese standard GB/T 17671–1999 Performance study of alkaliactivated phosphate slaggranulated blast 2024年10月1日 Application of blast furnace slag in desulfurization In general, flue gas desulfurization (FGD) In the blast furnace slag, around 91 % of the magnesium and 97 % of the calcium are converted to the respective carbonates, and 76 % of the aluminum is recovered as 996 wt percent pure NH 4 Al(SO 4) 2 12 H 2 O Ju et al Utilization of steel slag in air pollution and greenhouse gas
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The mechanism of hydration reaction of granulated blast furnace slag
DOI: 101016/jjobe2021 Corpus ID: ; The mechanism of hydration reaction of granulated blast furnace slagsteel slagrefining slagdesulfurization gypsumbased clinkerfree cementitious materials2013年7月1日 Based on composition of raw materials and property of slag with superhigh ω(Al2O3), which was produced using smelting laterite sinter ore by a blast furnace (BF) with 450 m3 of Chengde Nickel Viscosity and desulfurization behavior of blast furnace slag with 2016年3月24日 The sulphide capacities (C S) of CaO–SiO2–Al2O3–MgO–TiO2 blast furnace slags were experimentally measured at 1773 K, and the percentages of free oxygen ions (O2−) and bridge oxygen (O0) of molten slag were calculated using molecular dynamics at 1773 K The measured and calculated results were closely correlated with the change in CaO/SiO2, MgO, Desulphurisation ability of blast furnace slag containing high 2016年3月24日 The desulfurization and the removal of alkali in the blast furnace have been investigated extensively [9][10][11][12][13][14][15][16] However, the previous studies have certain limitations: (1 (PDF) Desulphurisation ability of blast furnace slag containing

Reducing MgO Content of Blast Furnace Slag SpringerLink
2024年2月3日 The best basicity of the slag was about 1245 In the industrial test, the MgO content and the viscosity of the blast furnace slag were maintained in the ranges of 45–50% and 016–02 Pa s, respectively The slag with low MgO had good desulfurization capacity by regulating slag basicity2020年10月1日 This paper studies the mechanical properties and hydration of green concrete which is made from ground granulated blastfurnace slag (GGBS), desulfurization gypsum (DG) and electric arc furnace reducing slag (EAFRS) as cementitious materialsThe green concrete with a water to cementitious materials ratio of 032 yields a compressive strength over 50 MPa Green concrete with ground granulated blastfurnace slag Desulfurization Slag/Granulated Blast Furnace Slag Binder and Mortar without Portland Cement WenTen Kuo 1, TsungChin Hou , and HuangHsing Pan1 1Department of Civil Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan Email: ABSTRACT: Molten iron desulphurization slag (DS) is a common Desulfurization Slag/Granulated Blast Furnace Slag Binder and 2024年8月11日 The desulfurization capacity of top slag in the process of predesulfurization of hot metal containing vanadium and titanium was researched The top slag system of CaOSiO2MgOAl2O3TiO2VOx that was formed by blast furnace slag and a CaO desulfurization agent reduced the sulfur in hot metal from 008 wt% to 002 wt% It was found that the Influence of Top Slag Containing TiO2 and VOx on Hot Metal Pre

SlagForming in Blast Furnace Ironmaking SpringerLink
2023年6月10日 The composition and properties of slag can be controlled by slagging to ensure the quality of pig iron, such as making alkaline slag desulfurization, regulating the basicity of slag, control of silicon, manganese reduction, alkali discharge, etc Blast furnace slag has the function of promoting beneficial elements and inhibiting the reduction of harmful elements, such as 311 Components and Classification of the Blast Furnace Slag Conventional blast furnace slag belongs to silicatebased system At present, the research on the structure of blast furnace slag took the related research methods of silicate glass and geological lava as the reference [1,2,3]According to the theory of network structure, the common components in the blast Slag Structure of High Alumina Blast Furnace Slag2021年9月1日 Download Citation The mechanism of hydration reaction of granulated blast furnace slagsteel slagrefining slagdesulfurization gypsumbased clinkerfree cementitious materials In this study The mechanism of hydration reaction of granulated blast furnace slag 1 Introduction Hot metal desulfurization serves as the main unit process for removing sulfur in blastfurnacebased steelmaking Hot metal desulfurization is commonly conducted in a ladle or a torpedo car, 1 using a desulfurization reagent that is either injected into the metal bath or added on top of it 2 From the thermodynamic point of view, the fundamental requirement for the A Review of Modeling Hot Metal Desulfurization
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Effect of High Al2O3 Slag on the Blast Furnace Operations J
lower part of the blast furnace So, it will be important to keep good slag fluidity at the blast furnace operations such as, drainage of tapping and keeping good permeability In order to clarify the effect of high Al 2O 3 slag fluidity on the blast furnace, high Al 2O 3 slag (20%) test operations of experimental blast furnace have been 2023年9月8日 Alkali activation and the combination of fly ash (FA) and ground granulated blastfurnace slag (GGBS) Investigation into the synergistic effects in hydrated gelling systems containing fly ash, desulfurization gypsum and steel slag Constr Build Mater, 187 (2018), pp 11131120, 101016/jconbuildmat201807241Modification mechanism of flue gas desulfurization gypsum on 2024年4月14日 Blast furnace slag is an industrial waste Its disposition is generally by means of landfilling or stacking, which goes against the concept of sustainable development In order to maximize its reuse and abate its adverse Sustainable Application of Blast Furnace Slag in the 2002年7月1日 Pelletization of the slag concentrate will allow the iron and steel industry to increase profits with higher iron recovery and lower disposal costs, while preventing pollution through lower waste generation This is the first time that iron units, beneficiated from hot metal desulfurization slag, have been pelletized for reuse as blast furnace Pelletizing steel mill desulfurization slag ScienceDirect

Blast Furnace Process an overview ScienceDirect Topics
Desulfurization potential of slag is characterized by the degree of approach to equilibrium of the reactions of desulfurization: Blast Furnace Slag (BFS) is a byproduct of the reduction stage, in which iron ore is converted into pig iron About 300 kg of BFS is produced per ton of pig iron [16]2004年9月1日 Request PDF Iron Blast Furnace Slag/Hydrated Lime Sorbents for Flue Gas Desulfurization The desulfurization rate was lower under a lower temperature range up to 773 K, Iron Blast Furnace Slag/Hydrated Lime Sorbents for Flue Gas 2023年2月16日 The increased utilization of pellets in blast furnaces is one of the directions for lowcarbon ironmaking As a result, the low slag rate may affect the desulfurization of the hot metal and the removal of alkali in the blast furnace Effective desulfurization and the removal of alkali in the low slag ironmaking process have become the focus of the steel industry In this Experimental Study on Desulfurization and Removal of Alkali Desulfurization Slag/Granulated Blast Furnace Slag Binder and Mortar without Portland Cement WenTen Kuo 1, TsungChin Hou , and HuangHsing Pan1 1Department of Civil Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan Email: ABSTRACT: Molten iron desulphurization slag (DS) is a common Desulfurization Slag/Granulated Blast Furnace Slag Binder and
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Desulphurisation behaviour of blast furnace slag with high Al 2 O
2022年2月20日 The desulphurisation of blast furnace slag is an important metallurgical function of blast furnace smelting To elucidate the desulphurisation behaviour of blast furnace slag with high Al2O3 2023年11月22日 Commercial ground granulated blast furnace slag (GGBFS/slag) available in Taiwan was used as the main powder of the supersulfated cement (SSC) The alkali sulfate activators were Type I Portland cement complied with ASTM C150 and the industrial solid waste of flue gas desulfurization gypsum (FDG) available in Taiwan, respectivelyUtilizations of preheated flue gas desulfurization gypsum and