Sulfide Capacity of CaO–SiO2–MgO–Al2O3–BaO–Na2O Slag at 1773 K

Liu, Wenguo; Chen, Yanbiao; Wang, Jingsong; Zuo, Haibin

doi:10.1007/s40831-021-00411-w

Cited by 7 publications

(8 citation statements)

References 28 publications

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“…According to previous researches [26], the S 2− could be fixed in the 2. FTIR results of premelted slag with varying BaO content.…”

Section: Changes In Sulphide Capacitymentioning

confidence: 99%

“…If assuming the activity of O 2− ions was proportional to that of CaO in the slag, the relationship between sulphide capacity and activity of CaO could be obtained as follows [26]:…”

Section: Changes In Sulphide Capacitymentioning

confidence: 99%

“…where e i S is the interaction coefficient, as listed in Table 4; [%i] is the mass fraction of element i in hot metal, as listed in Table 5 [26].…”

Section: Changes In Sulphide Capacitymentioning

confidence: 99%

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Viscosity and desulphurisation behaviour of CaO–SiO ₂ –MgO–Al ₂ O ₃ –BaO–MnO slag

Liu

Zuo

2023

Ironmaking & Steelmaking

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The influence of BaO on the structure, viscosity and sulfide capacity at 1500°C of CaO-SiO2-MgO-Al2O3-BaO-MnO slag was investigated comprehensively. The activity of O2− and activity coefficient of S2− were discussed, and the sulfur distribution ratio was deduced and analyzed from sulfide capacity. The results revealed that the viscosity increased slightly owing to an increase of BaO content, and the complexity of [SiO4]-tetrahedra and the connection between [SiO4]-and [AlO4]-tetrahedra structure were tighter. The sulfide capacity was lager due to the increased sum of basic component, but the increased range was weakened when BaO was more than 3wt-%. The activity of CaO increased and activity coefficient of CaS descended firstly and then enhanced, but the difference between logaCaO and logγCaS tended to be bigger as a function of BaO. The sulfur distribution ratio was in range of 40-50, similar to the variations of sulfide capacity.

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“…According to previous researches [26], the S 2− could be fixed in the 2. FTIR results of premelted slag with varying BaO content.…”

Section: Changes In Sulphide Capacitymentioning

confidence: 99%

“…If assuming the activity of O 2− ions was proportional to that of CaO in the slag, the relationship between sulphide capacity and activity of CaO could be obtained as follows [26]:…”

Section: Changes In Sulphide Capacitymentioning

confidence: 99%

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Viscosity and desulphurisation behaviour of CaO–SiO ₂ –MgO–Al ₂ O ₃ –BaO–MnO slag

Liu

Zuo

2023

Ironmaking & Steelmaking

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“…The sulphide capacity and desulphurization potential are two other important characteristics necessary for maintaining a reasonable level of operation [27]. The sulphur partition between slag and hot metal is also based on the optical basicity and MgO/Al 2 O 3 ratio [28].…”

Section: Introductionmentioning

confidence: 99%

“…Surface concentration is determined by surface tension as well as the chemical activity of the component which is governed by the Gibbs adsorption isotherm [26]. The sulphide capacity and desulphurization potential are two other important characteristics necessary for maintaining a reasonable level of operation [27]. The sulphur partition between slag and hot metal is also based on the optical basicity and MgO/Al 2 O 3 ratio [28].…”

Section: Introductionmentioning

confidence: 99%

Optimization of high alumina slag practice in blast furnace ironmaking: an industrial approach (PART 1: fundamental aspects)

Hazra,

Pal,

Biswajeet

et al. 2023

Ironmaking & Steelmaking

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The productivity of the blast furnace Ironmaking process is significantly dependent on the slag chemistry. The presence of compounds like Al 2 O 3 in high quantities can make the hearth slag highly viscous and difficult to tap. The objective of part-1 of this study is to provide a comprehensive analysis of the role of high alumina (Al 2 O 3 > 15%) compositions in the blast furnace slags. Slag viscosity, liquidus temperature, activation energy, etc., are critically reviewed with respective solutions to operate under the desired conditions. Flow parameters of the slag are examined to understand the melting-softening phenomena which directly affect the slag tap-totap time. The addition of certain additives to the slag system has also been studied with the aim to improve the target properties of the slag. A range of slag compositions and their optimization techniques are discussed in this part to provide greater insight into the topic.

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Revealing the Viscosity–Structure Relationship of SiO2–MnO–CaO Fluxes Geared Toward High Heat Input Submerged Arc Welding

Wang

Yang

2022

Metall Mater Trans B

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Sulfide Capacity of CaO–SiO2–MgO–Al2O3–BaO–Na2O Slag at 1773 K

Cited by 7 publications

References 28 publications

Viscosity and desulphurisation behaviour of CaO–SiO ₂ –MgO–Al ₂ O ₃ –BaO–MnO slag

Viscosity and desulphurisation behaviour of CaO–SiO ₂ –MgO–Al ₂ O ₃ –BaO–MnO slag

Optimization of high alumina slag practice in blast furnace ironmaking: an industrial approach (PART 1: fundamental aspects)

Revealing the Viscosity–Structure Relationship of SiO2–MnO–CaO Fluxes Geared Toward High Heat Input Submerged Arc Welding

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Sulfide Capacity of CaO–SiO2–MgO–Al2O3–BaO–Na2O Slag at 1773 K

Cited by 7 publications

References 28 publications

Viscosity and desulphurisation behaviour of CaO–SiO 2 –MgO–Al 2 O 3 –BaO–MnO slag

Viscosity and desulphurisation behaviour of CaO–SiO 2 –MgO–Al 2 O 3 –BaO–MnO slag

Optimization of high alumina slag practice in blast furnace ironmaking: an industrial approach (PART 1: fundamental aspects)

Revealing the Viscosity–Structure Relationship of SiO2–MnO–CaO Fluxes Geared Toward High Heat Input Submerged Arc Welding

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Product

Resources

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Viscosity and desulphurisation behaviour of CaO–SiO ₂ –MgO–Al ₂ O ₃ –BaO–MnO slag

Viscosity and desulphurisation behaviour of CaO–SiO ₂ –MgO–Al ₂ O ₃ –BaO–MnO slag