Effects of slag composition and additive type on desulfurization of rejected electrolytic manganese metal scrap by Na2O-containing electroslag

Lu, Ru; Li, Guangqiang; Liu, Chang; Gao, Yunming; Chen, Yufei; Wang, Qiang

doi:10.1007/s42243-021-00680-5

Cited by 6 publications

(2 citation statements)

References 66 publications

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“…When adding these agents into slags, volatilization was confirmed by researchers as well. In the case of Na 2 O-containing slags, Lu et al [25] and Tong et al [26] reported serious volatilization at high temperatures, although the sulphur capacity of the slags was improved by Na 2 O. Han et al [7] indicated that adding Na 2 O influenced the phases in CaO-SiO 2 -CaF 2 slag and promoted the volatilization of fluoride. In terms of Li 2 O-added slag, Kim et al [1] believed that Li 2 O in mold flux could effectively reduce the viscosity of the flux.…”

Section: Introductionmentioning

confidence: 99%

Study on volatilization behaviour of BOF converter slag containing CaCl₂

Yan

Deng

Zhu

2023

Ironmaking & Steelmaking

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The volatilization behaviour of CaCl 2 -containing basic oxygen furnace (BOF) slags was investigated in laboratory at steelmaking temperature. During the melting process, the volatilization ratio was measured, and the volatile compounds were collected with some conductive tapes. Thermogravimetric analysis was conducted to clarify the volatilization of CaCl 2 -containing slags, and the volatilization ratio was also calculated by the thermodynamic software HSC. It was found that volatilization takes place in both CaCl 2 -containing and CaF 2 -containing BOF slags, but their influential mechanisms are different. FeCl 2 is the main volatile compound in CaCl 2 -containing BOF slags. The increasing contents of CaCl 2 and FeO in these slags are favourable for volatilization, while higher slag basicity plays the opposite role. In the case of CaF 2 -containing BOF slags, the volatilization compounds have little relation to the FeO content in the slags, and the volatilization ratio is smaller than that of CaCl 2 -containing BOF slag.

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Section: Introductionmentioning

confidence: 99%

Study on volatilization behaviour of BOF converter slag containing CaCl₂

Yan

Deng

Zhu

2023

Ironmaking & Steelmaking

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“…Due to the presence of a large amount of Na 2 O-bearing slag during the sodium smelting of VTM, it has a very good effect on the removal of impurities [28][29][30]. If lowtitanium-content molten iron can be obtained by adjusting the process parameters, it will greatly broaden its use and enhance its value.…”

Section: Introductionmentioning

confidence: 99%

Titanium Impurity Control in V-Bearing Pig Iron Prepared via the Sodium Smelting of Vanadium–Titanium Magnetite

Bian,

Cao,

Chen

et al. 2023

Metals

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The sodium smelting of vanadium–titanium magnetite (VTM) can realize a multi-component comprehensive utilization of VTM. To broaden the application of the vanadium-bearing pig iron produced through this process, it is imperative to maintain the titanium content in molten iron at a very low level. In this study, the effects of temperature, the added amounts of sodium carbonate and anthracite, and the smelting time on the titanium content of molten iron were investigated using thermodynamic calculations and experiments. The results indicate that the introduction of sodium carbonate makes the reduction reaction of VTM a relatively low-temperature smelting system. In the smelting process, the Ti content in molten iron increases with the increase in temperature and decreases with the addition of sodium carbonate, while the amount of anthracite added has little effect on it. The appropriate technological parameters were determined as temperature: 1150–1250 °C, smelting time: ≥2 h, anthracite consumption: 25–35%, and sodium carbonate consumption: ≥60%. In addition, it was determined that the Ti impurities in the V-bearing pig iron were mainly (Ti,V)(C,N), CaTiO3, and Na2TiO3. All results obtained from this work contribute to the comprehensive utilization of VTM, and also provide theoretical support for the sodium smelting of VTM.

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Kinetic Model of Desulfurization During RH Refining Process

She,

Peng,

Sun

et al. 2023

Metall Mater Trans B

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Effects of slag composition and additive type on desulfurization of rejected electrolytic manganese metal scrap by Na2O-containing electroslag

Cited by 6 publications

References 66 publications

Study on volatilization behaviour of BOF converter slag containing CaCl₂

Study on volatilization behaviour of BOF converter slag containing CaCl₂

Titanium Impurity Control in V-Bearing Pig Iron Prepared via the Sodium Smelting of Vanadium–Titanium Magnetite

Kinetic Model of Desulfurization During RH Refining Process

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Effects of slag composition and additive type on desulfurization of rejected electrolytic manganese metal scrap by Na2O-containing electroslag

Cited by 6 publications

References 66 publications

Study on volatilization behaviour of BOF converter slag containing CaCl2

Study on volatilization behaviour of BOF converter slag containing CaCl2

Titanium Impurity Control in V-Bearing Pig Iron Prepared via the Sodium Smelting of Vanadium–Titanium Magnetite

Kinetic Model of Desulfurization During RH Refining Process

Contact Info

Product

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Study on volatilization behaviour of BOF converter slag containing CaCl₂

Study on volatilization behaviour of BOF converter slag containing CaCl₂