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Slag basicity ratios

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 … 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 …

Basicity ratios of slag Download Table - ResearchGate

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 WebAug 5, 2024 · When the ω(MgO) and ω(Al 2 O 3) in magnesium slag were kept unchanged, the basicity was adjusted by 1.5–3.5, and ω(Fe 2 O 3) was adjusted to 10–30%, the smelting conditions were still not satisfied. Therefore, the mass fractions of ω ... Therefore, there was an optimal ratio between basicity, ω ... mayor of pittsburgh wikipedia https://benalt.net

Optimal hot metal desulphurisation slag considering iron loss and ...

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 … WebIn 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 … WebOct 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 … mayor of pittsfield ma

Slag density as a function of basicity …

Category:Estimating the physical properties of slags - Mintek

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Slag basicity ratios

(PDF) Basicity of metallurgical slags - ResearchGate

WebSlag density as a function of basicity (CaO+MgO+MnO/SiO2+Al2O3) around that of the baseline compositions, and at 1673 K (1400 °C) for HCFeMn slags and at 1873 K (1600 °C) for SiMn slags. Solid... http://article.sapub.org/10.5923.j.ijmee.20120105.04.html

Slag basicity ratios

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WebSep 1, 2024 · Three different gas ratios were used to study the softening behavior of the primary slag: 100% N 2, 40% CO + 60% N 2, and 10% H 2 + 90% N 2, based on theoretical … WebFeb 13, 2024 · In industry, weight ratios of basic components over acid components are extensively expressed as basicity and much of the slag literature listing properties …

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]. WebNov 1, 2015 · The average content ratio, CaO/Al 2 O 3 and CaO/SiO 2 of the inclusions, increased with slag basicity increasing when Al 2 O 3 content in slag was around 25%, MgO/Al 2 O 3 and CaO/Al 2 O 3 increased with Al 2 O 3 content in slag decreasing when slag basicity was around 3.3.

WebNov 3, 2024 · As a part of ongoing work on metal droplet dephosphorization, this study specifically investigated the effect of slag basicity (V ratio) by employing time lapse … WebFeb 18, 2015 · In the beginning of heat, the slag also contains high FeO level which is carried over from the previous heat thus aids in the removal of P. High slag basicity (CaO/SiO2 ratio) is also beneficial for the removal of P …

WebNov 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. mayor of pittsfield ma 1931WebJan 5, 2012 · The slag liquidus has been found to be closely associated to slag basicity i.e. (CaO+MgO/SiO 2) showing significant increase above 0.7 slag basicity. Charge mix basicity of 0.2 was found to give maximum Mn and Si recoveries. Increasing or decreasing charge basicty from 0.2 resulted in lower metallic yield and Mn and Si recoveries. mayor of pittsfield ma 1925WebAt 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 logLP value is... mayor of pittsfield ma 1924WebApr 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 ... mayor of pittsfield ma 1945WebThe 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. mayor of pittsfield ma 1927WebThe traditional concepts of slag capacities and basicity ratios are used in order to characterize slag behavior as well as the relatively new concept of optical basicity. mayor of pittsfield ma 1930WebJan 1, 2024 · In a slag with a basicity (B2) below 0.93, which is equal to a molar ratio CaO:SiO 2 of 1:1, the CaS formation will be retarded by the lack of free oxygen (O 2ions), … mayor of pittsfield ma 1926