Slag basicity calculation

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August undefined, 2024

WebSlagsamples werecollectedand usedto estimate theactivitycoefficientandofsilica inthe slagandto investigate the influencesof basicity,temperature andoptical basicityon bothofthem. Arelationshipbetweenthe activitycoefficientand temperaturewasobtainedwhich showsthat therelative partialmolarenthalpyof solution of SiO.inthe slagis70.0kJ/mol. WebNov 30, 2024 · The present study aims to examine MgO saturation, using the software FactSage v.6.4 for all calculations, in the CaO-SiO2-FeO-MgO-Al2O3 slag system and the …

(PDF) Effect of Slag Basicity on Non-Metallic Inclusions and ...

WebDec 12, 2024 · Samples under each basicity of 1~2 L were reduced by the quartile method, and 50 grains were randomly picked up. Maximum diameter and minimum diameter of each slag beads were measured with a vernier calipe, respectively. If the K value was close to 1, the slag beads were close to the sphericity. (1) WebIn the first method, the iron is produced from ore in the BF, thus, generating BF slag (BFS). BBOF slag (BOFS) is produced in the steelmaking process by using the molten iron coming from the BF. In the second method, slags are generated in the scrap-based steel industry. ایرانیان اصناف پرداخت وجوه الزامی اتحادیه

Slag Basicity: What Does It Mean? SpringerLink

WebAs the sulfide capacity of the slag is a decisive factor influencing steel desulfurization, its values have been measured for different slags. A classical presentation of sulfide … WebJun 17, 2024 · Foamy slag formation can be divided into 3 steps. These are (i) step 1 which is oxygen injection in liquid steel phase, (ii) step 2 which is carbon injection into the slag, and (iii) step 3 which is when oxygen is injected into the slag. Initially, oxygen is injected into the molten metal (step 1). WebDependence of slag viscosity on FeO content and slag basicity at 1723 K is shown in Figure 2. The viscosity of slags at a basicity of C/S=1.5 increases from about 2.5 to 10 dPa•s as FeO content decreases from 10 to 5 percent. The viscosity of slags increases with increasing basicity from 1.4 to 1.6 at a fixed MgO and FeO content. As shown in ... ایرپاد qcy t13 ترب

Steel Slag - an overview ScienceDirect Topics

Estimation of Sulfide Capacity of Slags Using Ionic Theory

Web闫超杰陈树军赵晓杰李福民吕庆(1. 华北理工大学冶金与能源学院、教育部现代冶金技术重点实验室，河北唐山 063009;2. 东 WebApr 9, 2024 · In this paper, the thermodynamic properties of the PbO-ZnO-FeO-Fe2O3-SiO2-CaO six-component slag system were studied by using the molecular-ion coexistence theory, and the influence of slag composition changes on the activity of each structural unit was analyzed. The results show that the calculated value of the activity model is in good … ایران قدرت اول موشکی جهانWebWith the help of these results, we then analyzed and evaluated some existing numerical models for determining the sulfide capacity, calculated the activities of oxides, oxygen and sulfur, then finally calculated the distribution ratio for sulfur and the basicity of the slag. With the help of calculations, we have more clearly defined the ... ایران و طالبان امروز

"WebJun 24, 2024 · Finally, thermodynamic calculations and characterizations show that CO2–containing gas injection helps titanium stabilize in a higher valence state, which is conducive to improve the high–temperature characteristics of titanium–containing slag. ... and basic sinters with a mass ratio of 2.56:1:2 to keep the slag basicity required from ... " - Slag basicity calculation

Slag basicity calculation

(PDF) Analysis of the Slag Mode of Blast Furnace Melting Using …

WebApr 28, 2015 · Basicity is the most significant factor determining magnesia saturation. It defines the minimum amount of MgO required in the slag to be compatible with the basic … WebOct 14, 2024 · The use of the slag with a basicity B2 = CaO + MgO/SiO 2 instead of CaO/SiO 2 when plotting the curves of the dependencies of the slag viscosity on the slag basicity …

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WebApr 12, 2024 · As one of the main properties of slag, basicity has a direct effect on the control of O and S content in steel. Research has shown that when slag basicity … Webrefractory wear when slag basicity is between 1.4 and 1.8. Table 4 The content of FeO and MgO in a dual saturated slag in different oxygen partial pressures and slag basicity and the standard deviation of FeO and MgO concentration due to the effect of oxygen partial pressure. High PO2 Medium PO2 Low PO2 Standard Deviation Basicity FeO mol% MgO ...

WebIn the typical slag system of interest, an increase in basicity not only leads to a lower liquid viscosity due to broken silicate bonds, but also increases the likelihood of solids precipitation, thereby increasing the viscosity. Phase equilibrium calculations are used to firstly determine the liquidus temperature, WebAug 1, 2016 · The influence of Al 2 O 3 and MgO content, basicity R2 = w (CaO)/ w (SiO 2) on the fluidity of slag was studied. The stepwise regression analysis in SPSS was used to reveal the relationship between sulfur distribution coefficient LS and slag composition as well as furnace temperature.

WebThe relationship between slag optical basicity and nitrogen capacity can be expressed as lg CN = −5.59lg Λ − 12.41. With the increase in the Al 2 O 3 content of slag, the nitrogen pickup amount of molten steel decreases and the nitrogen pickup rate decreases. WebIn the beginning of blow, irrespective of carbon content of hot metal and basicity, the FeO content of slag rises to as much as 35% FeO in slag. Basicity is still undefined as lime has …

WebMay 10, 2016 · High basicity slag was used to solve this problem in electric furnace smelting in South Africa and New Zealand. As a result, the titanium slag contained about 30%–33% TiO 2 is obtained, but without effective recovery methods.

WebThe degree of basicity in an acidic cupola furnace slag is between 0.5 and 0.7, that of a basic slag is between 1.5 and 2, neutral slags have a basicity degree between 0.7 and 1.5. According to F. Neumann, the composition of a typical cupola furnace slag for a furnace with acidic lining is: 45 - 55 % SiO 2 25 - 45 % CaO 8 - 15 % Al 2 O 3 ایرانیان اصناف شیرازWebApr 16, 2024 · 2.2 Slag composition and slag basicity Table I shows typical slag components along with their respective melting points. Table I. Typical Slag Components Oxide Melting Point (°C) Melting Point (°F)SiO2 1720 3128CaO 2600 4712MgO 2800 5072Al2O3 2030 3686FeO† 1370 2498MnO 1850 3362Cr2O3 2260 4100CaF2 1420 2588 david goggins push upsWebJan 6, 2024 · Slag viscosity has been calculated based on the Arrhenius equation. \ln \left ( \eta \right) \, = \, \ln \left ( A \right) \, + \, 1000*B/\left ( {T + 273} \right) where η = slag … ایرپاد tws-w9WebApr 12, 2024 · To investigate the effect of the chemical makeup of slag on the non-metallic inclusions in liquid steel, laboratory experiments and thermodynamic calculations were conducted on CaO-MgO-SiO2-Al2O3 ... david gonzalez nteuWebThe paper presents a balance model of the blast-furnace process improved by the researchers from the Ural Federal University and Magnitogorsk Iron and Steel Works. It generally represents a system of deterministic dependencies characterizing the ایرپاد w1 تربWebFeb 13, 2024 · The concept of “basicity ” has been central to our understanding of slag chemistry for many decades. Traditionally, basicity has been connected to the level of networking present in a slag, acid slags having a great deal of networking and basic slag … david goldrake divorceWebMay 27, 2013 · Slag viscosity is a transport property which relates to the reaction kinetics and the degree of reduction of the final slag. Slag viscosity also determines the slag– metal separation efficiency, and subsequently the metal yield and impurity removal capacity. ایرپاد پرو الماس پایتخت