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· As the name suggests the blast furnace slag is generated in the blast furnace during the production of liquid pig iron and is mostly processed further into granulated blast furnace slag which is a valuable additive in the cement industry. The main type of metallurgical slag is LD slag the byproduct of the Linz-Donawitz process.
Chat Online· Role and Effects of Slag Components in ESR Processes M. Schwenk1 B. Friedrich1 1) IME Process Metallurgy and Metal Recycling RWTH Aachen University D-52072 Aachen The electroslag remelting process (ESR) is a well-known refining process suitable for
Chat Online· As the name suggests the blast furnace slag is generated in the blast furnace during the production of liquid pig iron and is mostly processed further into granulated blast furnace slag which is a valuable additive in the cement industry. The main type of metallurgical slag is LD slag the byproduct of the Linz-Donawitz process.
Chat Online· LD slag has a series of advantages over natural rock in the field of road construction. Greater hardness. Slag has a greater PSV (Polished Stone Value) i.e. greater resistance to wear. This is the result of its mineral composition. The consequences less wear and longer road lifetimes. Roads constructed using LD slag demonstrate reduced rutting.
Chat Online· (glasses) and is very dependent upon the slag composition. Some slags are basically unstable at high temperatures since two or more components in the slag will react and the composition will change continuously eg ESR slags where fluorides and oxides react eg. 3CaF2 Al2O3 = 2AlF3 (g) 3CaO (3)
Chat Online· The latter slag type is presented in Figure 5 and Figure 6. Fluxing to produce the required slag composition was carried out using either silica or a combination of silica and lime (in the form of burnt lime or limestone). The resulting ternary slag contained in mass percent about 30-40 MgO 30-40 Al2O3 and 20-30 SiO2. In the quaternary slag
Chat Online· -bearing system slag of CaO-MgO-SiO 2-Al 2 O 3-TiO 2-FeO-Cr 2 O 3 have been reported. Meanwhile the composition of Cr 2 O 3-bearing BF vanadium slag is different from that of converter slag and traditional blast furnace slag (Table 1) which leads to the different physicochemical properties of the slag 29 30 . With the increase of TiO 2 and
Chat Online· (glasses) and is very dependent upon the slag composition. Some slags are basically unstable at high temperatures since two or more components in the slag will react and the composition will change continuously eg ESR slags where fluorides
Chat Onlinefurnace and containing iron nickel tin lead zinc antimony etc. uses similar equipment to that used for primary matte treatment in the form of air-blown Pierce-Smith converters. Similarly again the copper product is further refined in anode furnaces and finally by elec-trolysis as indicated in figure 4
Chat Online· In this study to investigate the effects of composition on the structure and viscosity of CaO–SiO 2-based mold flux the structure of molten slag was investigated by Raman spectroscopy and the effect of the components on the viscosity was analyzed.The results show that the formation of the molten slag with multicomponent oxides involves the equilibrium and redistribution processes of O 2
Chat Online· The structure of a slag can thus be represented by the mole fractions (X) of Oo O- and O2-present. Consequently it is customary to divide various constituents into either network formers (e.g. SiO 2) or network breakers (CaO Na 2O etc.). However when Al 2O 3 is added to a silicate slag the Al3 ion can be absorbed into the Si4 chain but
Chat Online· Properties of slagD E P A R T M E NT O F Metallurgical and MaterialsSulphide capacity of slag Engineering National Institute of Technology Rourkela• The sulphur affinity of a slag presented as molar sulphide capacity is defined by the equation 1 pO 2 x 2− ′ = x 2− 2 CS = K O (20) S pS γ
Chat Onlinethe viscosity and slag structure. The granularity of the reagents and pre-melted samples is less than 0.074 mm. The composition range of the mold fluxes used in present study is shown in Table 1. 2.2. Viscosity Measurement and Data Processing The rotating cylinder method was adopted to measure the viscosity. An electric resistance furnace with MoSi
Chat Online· (glasses) and is very dependent upon the slag composition. Some slags are basically unstable at high temperatures since two or more components in the slag will react and the composition will change continuously eg ESR slags where fluorides
Chat Online· and a high purity calcium fluoride slag. Figure 13 shows a withdrawal type unit that was used in melting a variety of titanium and zirconium scrap. To date the largest unit that has been successfully operated incorporates a 20 cm diameter crucible and a 300 KW induction power supply. This furnace is
Chat Online· Its composition contains granulated blast furnace slag and pozzolana. Similarly the composition of type CEM II/B-M (S-P-Q) 42 5N product contains two different types of pozzolana and granulated blast furnace slag. While pozzolana increases early strength granulated blast furnace slag enhances strength at later ages.
Chat Online· composition A clear metal-slag interaction expressed by Equation 1 is visible due to the low activity of SiO 2 and high activity of Al 2 O 3 in the slag at process start. The approach to chemical equilibrium between slag- and steel-melt subsequently results in
Chat OnlineOther main outputs from the process are slag and top gas. Slag consists of oxides of Ca Mg Al and Si and its temperature is 50-100°C higher than that of the hot metal. Slag can be used by other industries for example in cement making. A typical composition of the blast furnace top gas is 20-25 CO 2 20-25 CO 50 N 2 1-4 H 2 and some
Chat Online· hydraulic slag. The slag has to consist of granulated blast furnace slag LD-slag Electric arc furnace slag or a mixture of these slags. The maximum grain size of the slag is 11 2 mm. Asphalt aggregate (AG) Asphalt aggregate results from the breaking and sieving of asphalt (bituminous bound layers) from roads.
Chat Online· -bearing system slag of CaO-MgO-SiO 2-Al 2 O 3-TiO 2-FeO-Cr 2 O 3 have been reported. Meanwhile the composition of Cr 2 O 3-bearing BF vanadium slag is different from that of converter slag and traditional blast furnace slag (Table 1) which leads to the different physicochemical properties of the slag 29 30 . With the increase of TiO 2 and
Chat Onlinecontent of Al 2 O 3 in slag would change the slag composition to alkali or alkaline aluminosilicate based slag where the Al 3 ions would be in a tetrahedral bonding with oxygen.
Chat Online· particularly investigated the effect of blast furnace slag addition as filler on wear and friction characteristics of epoxycomposites. 2. Experimental studies The blast furnace slag (BFS) used in the study was supplied by Bolu Cement Factory in Bolu Turkey. Its maximum particle size was 113 78 m.
Chat Online· example in aerospace applications power generation military uses oil and gas extraction facilities or the manufacturing of tool materials. 3 4 The utilized slag in this process plays an important role in minimizing detrimental parameters such as nonmetallic inclusions
Chat Online· The electrical conductivity of the CaO-SiO2-Al2O3-MgO-TiO2 slag was determined using the four-electrode method. The effect of the Al2O3 and Al2O3/SiO2 mass ratio on the electrical conductivity was studied. At a fixed CaO/SiO2 ratio of 1.20 the electrical conductivity decreases with increasing Al2O3 from 16 mass pct to 24 mass pct because of the increased polymerization of aluminosilicate
Chat Online· The structure of a slag can thus be represented by the mole fractions (X) of Oo O- and O2-present. Consequently it is customary to divide various constituents into either network formers (e.g. SiO 2) or network breakers (CaO Na 2O etc.). However when Al 2O 3 is added to a silicate slag the Al3 ion can be absorbed into the Si4 chain but
Chat Online· The structure of a slag can thus be represented by the mole fractions (X) of Oo O- and O2-present. Consequently it is customary to divide various constituents into either network formers (e.g. SiO 2) or network breakers (CaO Na 2O etc.). However when Al 2O 3 is added to a silicate slag the Al3 ion can be absorbed into the Si4 chain but
Chat Online· For the production of titanium-alloy ingots for aerospace applications a most appropriate setup is considered to be combined use of two types of furnaces one being the Electron Beam (EB) refining furnace which is very advantageous in the context of raw materials selection by its permitting the use of a great variety of scrap and the other
Chat Online· DEPARTMENT OF METALLURGICAL AND MATERIALS ENGINEERING NATIONAL INSTITUTE OF TECHNOLOGY ROURKELA ORISSA INDIA769008 CERTIFICATE This is to certify that the thesis titled "Flow Characteristics of Indian Blast Furnace Slag submitted to the National Institute of Technology Rourkela by Mr. Ankit Singhal Roll No. 213MM1475 for the award of Master of Technology in Metallurgical
Chat Online· production is liquid metal slag and blast furnace gas of high calorific value. The blast furnace charge consists of iron bearing materials in the form of lump ores pellets and sinters flux in the form of limestone and dolomite and coke. Coke plays a very important role in the blast furnace operations since it is the only substance that remains
Chat Online· Blast furnace slag is significant in the process of iron-making especially titanium bearing slag which exerts a deep influence on the reduction of ore separating efficiency of slag-metal gas permeability and so on 2–10 . As one of the most important physical properties of slag the viscosity is closely related to temperature and slag
Chat Online· Blast furnace slag is significant in the process of iron-making especially titanium bearing slag which exerts a deep influence on the reduction of ore separating efficiency of slag-metal gas permeability and so on 2–10 . As one of the most important physical properties of slag the viscosity is closely related to temperature and slag
Chat OnlineAs it is decided to carry out the ball burnishing process BF Slag Composition in present work by two process of burnishing the first and foremost work is to design and develop the ball (a) Ca O 30 to 38 burnishing tool by selecting appropriate materials (b) Si O2 30 to 40 dimensions and proper design such that the process and the tool
Chat Online· Properties of slagD E P A R T M E NT O F Metallurgical and MaterialsSulphide capacity of slag Engineering National Institute of Technology Rourkela• The sulphur affinity of a slag presented as molar sulphide capacity is defined by the equation 1 pO 2 x 2− ′ = x 2− 2 CS = K O (20) S pS γ 2− 2 S • or a more useful term wt
Chat OnlineArc furnaces differ from induction furnaces in that the charge material is directly exposed to an electric arc and the current in the furnace terminals passes through the charged material.. For steelmaking direct current (DC) arc furnaces are used with a single electrode in the roof and the current return through a conductive bottom lining or conductive pins in the base.
Chat Online· The structure of a slag can thus be represented by the mole fractions (X) of Oo O- and O2-present. Consequently it is customary to divide various constituents into either network formers (e.g. SiO 2) or network breakers (CaO Na 2O etc.). However when Al 2O 3 is added to a silicate slag the Al3 ion can be absorbed into the Si4 chain but
Chat Online· LD slag has a series of advantages over natural rock in the field of road construction. Greater hardness. Slag has a greater PSV (Polished Stone Value) i.e. greater resistance to wear. This is the result of its mineral composition. The consequences less wear and longer road lifetimes. Roads constructed using LD slag demonstrate reduced rutting.
Chat Online· example in aerospace applications power generation military uses oil and gas extraction facilities or the manufacturing of tool materials. 3 4 The utilized slag in this process plays an important role in minimizing detrimental parameters such as nonmetallic inclusions
Chat Online· tube furnace device in order to provide a basis for the treatment method of MSWI fly ash. First physicochemical properties including the chemical composition microstructure and melting characteristics of fly ash were investigated. Second phase analysis and an investigation of the target heavy metal contents (Pb Cd Zn and Cu) in raw
Chat Online· Continuous process furnaces may also use paste-type Søderberg electrodes to prevent interruptions due to electrode changes. Such a furnace is known as a submerged arc furnace because the electrode tips are buried in the slag/charge and arcing occurs through the slag between the matte and the electrode. A steelmaking arc furnace by
Chat Online· DEPARTMENT OF METALLURGICAL AND MATERIALS ENGINEERING NATIONAL INSTITUTE OF TECHNOLOGY ROURKELA ORISSA INDIA769008 CERTIFICATE This is to certify that the thesis titled "Flow Characteristics of Indian Blast Furnace Slag submitted to the National Institute of Technology Rourkela by Mr. Ankit Singhal Roll No. 213MM1475 for the award of Master
Chat Online· (glasses) and is very dependent upon the slag composition. Some slags are basically unstable at high temperatures since two or more components in the slag will react and the composition will change continuously eg ESR slags where fluorides
Chat Online· The structure of a slag can thus be represented by the mole fractions (X) of Oo O- and O2-present. Consequently it is customary to divide various constituents into either network formers (e.g. SiO 2) or network breakers (CaO Na 2O etc.). However when Al 2O 3 is added to a silicate slag the Al3 ion can be absorbed into the Si4 chain but
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