Slag basicity ratios
WebJun 24, 2024 · Chromia–bearing vanadiferous titanomagnetite ore ores were used to prepare the experimental samples, and they were mixed with the acid pellets, basic pellets, and basic sinters with a mass ratio of 2.56:1:2 to keep the slag basicity required from actual production (CaO/SiO 2 is about 1.1). The acidic CVT pellets were prepared in air by ... WebBasicity (in metallurgy), the ratio (in percent by weight) of basic and acidic oxides in iron ore materials (iron ore, sinter, and pellets), and also in blast-furnace and steel-smelting slag. Basicity defines the chemical composition and metallurgical properties of such materials.
Slag basicity ratios
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WebThe total slag weight is 3 kg SiO2 (from DRI) + 8.4 kg CaO (for V ratio of 2.8) + 2 kg MgO (for refractory) / 0.6 (SiO2+CaO+MgO represent ~60% of the slag make up) = 22.3 kg/DRI ton of total slag. With 35% FeO in the slag, this means 7.8 kg of FeO or 6.1 kg of Fe lost to the slag. WebThe main compounds in EAF slag are FeO, ranging from 10%–40%; CaO, from 22%–60%; SiO 2, from 6%–34%; Al 2 O 3, from 3%–14%; MgO, from 3%–13%; and some other minor elements (namely, oxidised impurities like MgO, MnO, and SO 3) [17].
http://article.sapub.org/10.5923.j.ijmee.20120105.04.html WebAug 1, 2015 · These are (i) control of slag basicity which is the ratio of the basic oxides and the acidic oxides, (ii) saturation of slag with MgO, (iii) slag foaming control also known as …
Webof the slag. The earliest models used the basicity (%CaO/ %SiO 2) or basicity indices where different weights were given to different basic oxides (e.g. CaO, MgO, or FeO). The most widely used parameter is the ratio of NBO to tetragonal ions (NBO/T), which is calculated using Equation [1]. NBO/T is a measure of the depolymerization of the slag ... WebThe 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
WebAt the dephosphorization temperature range of 1385–1410 °C, the dephosphorization ratio is higher than 55%, the P2O5 content in the dephosphorization slag is 3.93–4.17%, the …
WebNov 9, 2024 · Metallurgical Slag pH Measurement. Table of Contents. The correlation of the high temperature chemical properties of slag-metal systems with some easily measured … gif moto helmet wallpaperWebNov 29, 2024 · Based on the FactSage calculation, it has been identified that 12% MgO coupled with slag basicity ~ 1.0 is the most favorable composition for 22% Al2O3 in slag … gif moving catWebSlagsamples 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. gif moving pencilWebApr 14, 2024 · The results indicated that the dephosphorization ratio was increased with the increase of basicity. Even at the low basicities of 1.73 and 1.83, the dephosphorization ratios can be as high as 77.3 ... gif moving crowWebIn practice, the following degree of basicity B is mostly used for assessment of the basicity of slag (also referred to as as slag ratio, Eq. 1 ): Eq. 1: If the basicity value is greater than … fruity incense sticksWebOct 27, 2024 · The viscosity decreased as the basicity increased and increased as the Al2O3 content increased. To determine the effect of the Al2O3 content and basicity on the … fruity indonesiaWebNov 9, 2024 · A large sample of commercial blast furnace slag of intermediate basicity (V-ratio 1.15) was selected for the study. The slag had been put through a jaw crusher until all of it passed through a 20 mesh screen. Five fractions of this crushed material were separated, -20 to +40, -40 to +60, -60 to +100, -100 to +200, and -200 mesh. fruity incense