Desulfurization practices in ArcelorMittal Flat Carbon Western Europe

Nadif, M.; Suero, J.; Rodhesly, C.; Salvadori, D.; Schadow, F.; Schutz, Ronald W.; Perrin, Elisabeth; Peeters, Luk

doi:10.1051/metal/2009048

Cited by 4 publications

(6 citation statements)

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“…Because of these drawbacks, torpedo desulphurisation was replaced by ladle desulphurisation in most steel plants 16 . Still with torpedo desulphurisation final sulphur concentrations at converter charge (including resulphurisation) as low as 0.002% are reported in the literature 28,29 .…”

Section: Hot Metal Desulphurisationmentioning

confidence: 99%

“…This means that it differs from plant to plant (or even between steel grades) if the sulphur concentration in the metal increases or decreases during the BOF process. Minimum sulphur levels at tapping are reported to be in the range of 0.003-0.004% 29 .…”

Section: Sulphur Removal In the Convertermentioning

confidence: 99%

“…Ironmaking and Steelmaking 2017 VOL 44 NO 5 With magnesium/lime co-injection, sulphur concentrations below 0.001% (10 ppm) have been reported in the literature [29][30][31][32] . At the plants of Tata Steel IJmuiden and Port Talbot a significant amount of heats had a measured final sulphur concentrations below 0.001% with co-injection.…”

Section: Schematic Overview Of Torpedo Desulphurisation 7 Schematic Omentioning

confidence: 99%

“…During the VD process a lot of turbulence is generated. This creates ideal kinetic circumstances with excellent slag-metal mixing, which can lead to final sulphur levels of <0.001% (10 ppm) 5,9,10,14,29 . The recirculation degasser or RH is in its standard version not well suited for desulphurisation because there is not enough interaction between the steel and the desulphurising slag.…”

Section: Vacuum-based Processesmentioning

confidence: 99%

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Sulphur removal in ironmaking and oxygen steelmaking

Schrama

Beunder

Berg

et al. 2017

Ironmaking & Steelmaking

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Sulphur removal in the ironmaking and oxygen steelmaking process is reviewed. A sulphur balance is made for the steelmaking process of Tata Steel IJmuiden, the Netherlands. There are four stages where sulphur can be removed: in the blast furnace (BF), during hot metal (HM) pretreatment, in the converter and during the secondary metallurgy (SM) treatment. For sulphur removal a low oxygen activity and a basic slag are required. In the BF typically 90% of the sulphur is removed; still, the HM contains about 0.03% of sulphur. Different HM desulphurisation processes are used worldwide. With co-injection or the Kanbara reactor, sulphur concentrations below 0.001% are reached. Basic slag helps desulphurisation in the converter. However, sulphur increase is not uncommon in the converter due to high oxygen activity and sulphur input via scrap and additions. For low sulphur concentrations SM desulphurisation, with a decreased oxygen activity and a basic slag, is always required.

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Section: Hot Metal Desulphurisationmentioning

confidence: 99%

Section: Sulphur Removal In the Convertermentioning

confidence: 99%

Section: Schematic Overview Of Torpedo Desulphurisation 7 Schematic Omentioning

confidence: 99%

Section: Vacuum-based Processesmentioning

confidence: 99%

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Sulphur removal in ironmaking and oxygen steelmaking

Schrama

Beunder

Berg

et al. 2017

Ironmaking & Steelmaking

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“…Isto ocorre devido à heterogeneidade do metal, causada pela forma do carro torpedo. Nadif, et al [2] registrou incrementos de até 10ppm de enxofre no gusa líquido entre carro torpedo e panela. Entretanto, estes valores podem chegar até 40ppm, dependendo do processo de injeção.…”

Section: Introductionunclassified

Dessulfuração De Gusa Líquido Utilizando Agente Dessulfurante À Base De Carbureto De Cálcio E Magnésio Metálico

Viana¹,

Filho²,

Nascimento³

2014

ABM Proceedings

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Resumo A dessulfuração do gusa líquido tem papel fundamental na obtenção de baixos teores de enxofre no aço, considerando que o processo de refino primário envolve utilização de oxigênio, prejudicando a dessulfuração nesta etapa. A busca de processos cada vez mais eficientes levou ao desenvolvimento da dessulfuração do gusa com a utilização simultânea de agente dessulfurante à base de carbureto de cálcio junto com o magnésio metálico em co-injeção ou multi-injeção. Este trabalho tem objetivo de mostrar os resultados desta aplicação em panelas de gusa líquido na ThyssenKrup CSA Siderúrgica do Atlântico, Rio de Janeiro, onde foi possível determinar ganhos de produtividade e custo. Palavras-chaves: Carbureto de cálcio; Dessulfuração e Magnésio.

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Manufacturing of advanced high-strength steels (AHSS)

Theyssier

2015

Welding and Joining of Advanced High Strength Steels (AHSS)

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Desulfurization practices in ArcelorMittal Flat Carbon Western Europe

Cited by 4 publications

References 0 publications

Sulphur removal in ironmaking and oxygen steelmaking

Sulphur removal in ironmaking and oxygen steelmaking

Dessulfuração De Gusa Líquido Utilizando Agente Dessulfurante À Base De Carbureto De Cálcio E Magnésio Metálico

Manufacturing of advanced high-strength steels (AHSS)

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