determination of lf vd refining furnace slag by x ray
Alumina extraction from high-alumina ladle furnace
Nov 01 2013 · The phases in the slag were identified by X-ray diffraction analysis using Cu Kα radiation (Type Bruker D8 Advance). 2.2. Alumina leaching from LF refining slag. To study leaching behaviour of ladle furnace refining slag by sodium carbonate solution a series of experiments were carried out.
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Environmental Science Technology Vol 46 No 7
Response to Comment on "Variability and Uncertainty in Life Cycle Assessment Models for Greenhouse Gas Emissions from Canadian Oil Sands Production". Adam R. Brandt. Environmental Science Technology 2012 46 7 4254 (Correspondence/Rebuttal)
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Full text of "Chemical Metallurgy"
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ISIJ InternationalJST
The influence of Al 2 O 3 addition up to 30 wt on equilibria phase relations of Ti-bearing slag system with w(CaO)/w(SiO 2) of 1.00 was investigated at 1300°C and 1400°C by classical high temperature thermodynamic equilibria technique followed by XRD (X-Ray diffraction) and SEM-EDX (Scanning Electron Microscope and Energy Dispersive X-ray
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(PDF) Hot stage processing of metallurgical slags
They performed a large number of extraction tests on industrial stainless steel electric arc furnace slags and derived an empirical formula factor sp to relate the overall slag composition to the chromium leaching Factorsp = 0.2MgO 1.0Al 2 O 3 nFeO x − 0.5Cr 2 O 3 n is a number between 1 and 4 depending on the oxidation state of the slag.
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ISIJ InternationalJST
The influence of Al 2 O 3 addition up to 30 wt on equilibria phase relations of Ti-bearing slag system with w(CaO)/w(SiO 2) of 1.00 was investigated at 1300°C and 1400°C by classical high temperature thermodynamic equilibria technique followed by XRD (X-Ray diffraction) and SEM-EDX (Scanning Electron Microscope and Energy Dispersive X-ray
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Menue Metec-Estad 2019Home
In the present study the models of Ladle Furnace (LF) and Ruhrstahl Heraeus (RH) refining are developed based on the concept of linking practical metallurgical models to thermodynamic database. In the modeling thermodynamic library–ChemApp and ChemSage data-file are applied to perform equilibrium calculation.
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RUC2Device for measurement and control of
FIELD metallurgy. SUBSTANCE device consists of facility for automatic control of loaded charge or scrap depending on power supplied to bath and of measuring instrument for added charge coordinated with facility for automatic control. The measuring instrument is equipped with a weighting machine for a furnace jacket and for its inside.
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Analysis of inner fold and bulge defects on J55 steel for
J. Wang X. Tian and J. Fang Metall. Collect. 5 11 (2011). reported that large numbers of inner folds were distributed randomly on the internal surface of 26CrMoV pipe and that Si–Mn–Fe composite oxide layers were present near the inner fold region. The formation of inner fold defects was initiated during the perforation process.
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(PDF) CHARACTERIZATION OF LADLE FURNACE SLAG FROM THE
Steel slag is a byproduct from either the conversion of iron to steel in a basic oxygen furnace or the melting of scrap to make steel in an electric arc furnace. This paper reviews the production
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Analysis of inner fold and bulge defects on J55 steel for
J. Wang X. Tian and J. Fang Metall. Collect. 5 11 (2011). reported that large numbers of inner folds were distributed randomly on the internal surface of 26CrMoV pipe and that Si–Mn–Fe composite oxide layers were present near the inner fold region. The formation of inner fold defects was initiated during the perforation process.
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(PDF) Hot stage processing of metallurgical slags
They performed a large number of extraction tests on industrial stainless steel electric arc furnace slags and derived an empirical formula factor sp to relate the overall slag composition to the chromium leaching Factorsp = 0.2MgO 1.0Al 2 O 3 nFeO x − 0.5Cr 2 O 3 n is a number between 1 and 4 depending on the oxidation state of the slag.
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RUC2Device for measurement and control of
FIELD metallurgy. SUBSTANCE device consists of facility for automatic control of loaded charge or scrap depending on power supplied to bath and of measuring instrument for added charge coordinated with facility for automatic control. The measuring instrument is equipped with a weighting machine for a furnace jacket and for its inside.
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X-RAY DIFFRACTION ANALYSIS OF STEEL SLAG AND BLAST
X-ray diffraction analysis of steel slag and blast furnace slag 101 0.00 0.50 1.00 1.50 2.00 2.50 2006 2008 2015 Year mil. t/year Slag from iron desulphurization Converter slag Electric furnace slag Secondary metallurgy slag Total Fig. 1. Quantitative evaluation of steel slag and blast furnace slag
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Analysis of Spinel Based Inclusions During the Last Stage
steel tapping and at the end of the vacuum degassing (VD). Instead of adding CaSi wire for inclusion treatment the modification of inclusions were controlled by an indirect supply of calcium via slag phase to the metal during the ladle refining process. A total of nine
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-X10 201900 Determination of ten components in stainless steel slag by X-ray
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A STUDY ON DIRECT ALLOYING WITH MOLYBDENUM OXIDES
and reductant to prepare pellet added to basic oxygen furnace (BOF). In this paper a new method for direct alloying with molybdenum trioxide is proposed adding molybdenum trioxide molten steel by feeding wire method in ladle furnace (LF) refining process. The feasibility of molybdenum oxide reduction the influence rules of
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Kim Tae Sung Holappa Lauri Park Joo Hyun Influence of
decarburization (VOD) 23 RH refining 24 ladle furnace (LF) 25-34 and continuous casting tundish and mold 17 35 36 . Ren et al. 35 investigated the evolution of steel chemistry and the composition of inclusions caused by reoxidation of Al-killed steel in the tundish using FactSageTM software. However the reaction model used in this
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Electric Arc Furnace Scientific.Net
In this research carbothermic reduction of electric arc furnace dust using coke has been performed to observe the reduction ability and volatilization rate of zinc. Several properties of the dust were determined using chemical analysis differential scanning calorimetry (DSC) X-ray diffraction (XRD) etc.
Chat OnlineDetermination of 12 elements in coal ash by x-ray
Jun 01 2008 · Determination of LF-VD refining furnace slag by X ray fluorescence spectrometry . Kan B Cheng JP Song ZF. Guang Pu Xue Yu Guang Pu Fen Xi 24(10) 01 Oct 2004 Cited by 0 articles PMID
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The heat necessary for melting is generated by the resistance of the slag to the passage of high current between the Soederberg electrodes immersed in the slag. A three phase AC-electric furnace shown in Figure 4 is the 11 most common type of furnace used in the slag cleaning process.
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Analysis of Secondary Refining Slag Parameters with Focus
Analysis of Secondary Refining Slag Parameters with Focus on Inclusion Cleanliness furnace (LF) vacuum degassing (VD) and solidification in a continuous casting (CC) machine with three strands. and slag samples (EP) were subjected to X-ray fluorescence chemical
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Materials Science Forum Vol. 788 p. 6 Scientific.Net
The steel was produced in a certain steelmaking factory whose smelting process is EAF-LF-VD-CC and the micreostructure of the hollow steel 95CrMo samples have been investigated by SEM and EDS. Based on Lumsden s regular solution model to molten slags the possibility of CaO in slags reduced by carbon during hollow steel refining in VD furnace
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XV International Conference on Durability of Building Materials and Components (DBMC 2020) Collection of papers presented at the 15th Edition of the International Conference on Durability of Building Materials and Components Barcelona Catalonia October 20-23 2020 (DBMC 2020)
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IOP Conference Series Materials Science and Engineering
The chemical composition of furnace slag and silicon samples from the Silicon JSC of RUSAL (Russia) has been analyzed using various techniques i.e. metallographic X-ray fluorescence X-ray diffraction and X-ray spectral microanalysis.
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Characterization of ladle furnace basic slag for use as a
May 01 2009 · Ladle furnace basic slag or refining slag is produced in the final stages of steelmaking when the steel is desulphured in the transport ladle during what is generally known as the secondary metallurgy process. The liquid steel is at first subjected to an acid dephosphoration process in the EAF or the BOF (oxygen blowing) after which it is
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A STUDY ON DIRECT ALLOYING WITH MOLYBDENUM OXIDES
and reductant to prepare pellet added to basic oxygen furnace (BOF). In this paper a new method for direct alloying with molybdenum trioxide is proposed adding molybdenum trioxide molten steel by feeding wire method in ladle furnace (LF) refining process. The feasibility of molybdenum oxide reduction the influence rules of
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ISIJ InternationalJST
The influence of Al 2 O 3 addition up to 30 wt on equilibria phase relations of Ti-bearing slag system with w(CaO)/w(SiO 2) of 1.00 was investigated at 1300°C and 1400°C by classical high temperature thermodynamic equilibria technique followed by XRD (X-Ray diffraction) and SEM-EDX (Scanning Electron Microscope and Energy Dispersive X-ray
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t d.pdfA Study on Training Need Assessment Of
In addtion to above MSF has got the following Production facilities Steel Making Melting 15 Ton 2 Ton Basic Electric Arc Furnace with cored-wire Ca-Si Injection Argon purging and Slide Gate Teeming Bottom Pouring facilities. Secondary Steel Refining 20 Ton capacity Ladle FurnaceVacuum Degassing (LF-VD) and 10 Ton capacity Electro
Chat OnlineCHARACTERIZATION OF LADLE FURNACE SLAG FROM THE
Ladle furnace slag samples for determination of free CaO were prepared by crushing and milling of material with a granulation of less than 0.063 mm. Analysis has been performed in accordance with SIST EN 451-1 2004. Bulk mineralogical composition was determined via X-Ray Powder Diffraction (XRD)
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