Behavior of fluorine dissolution from hot metal pretreatment slag

Hideaki Suito; Ryo Inoue

doi:10.2355/tetsutohagane1955.88.6_340

Behavior of fluorine dissolution from hot metal pretreatment slag

Hideaki Suito, Ryo Inoue

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

Research output: Contribution to journal › Article

11 Citations (Scopus)

Abstract

Based on the results for the time dependence of F, Ca, Si and Al amount dissolved from hot metal pretreatment slags, the behavior of fluorine dissolution has been examined. It was found that the amount of fluorine dissolved from hot metal pretreatment slag depends on CaO/SiO₂ mass ratio and fluorine content in slag. This trend is obvious in the case of synthetic slags. Fluorine ion in solution is incorporated into CaO-SiO₂-H₂O and CaO-SiO₂-Al₂O₃-H₂O gels during the formation of these gels. Therefore, it was found difficult to estimate the amount of fluorine in solution from the amount of F-containing mineral phases and slag compositions.

Original language	English
Pages (from-to)	340-346
Number of pages	7
Journal	Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume	88
Issue number	6
DOIs	https://doi.org/10.2355/tetsutohagane1955.88.6_340
Publication status	Published - 2002 Jun

Keywords

Fluorine
Fluorine content
Hot metal pretreatment slag
Slag basicity
Synthetic slag

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry
Metals and Alloys
Materials Chemistry

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10.2355/tetsutohagane1955.88.6_340

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abstract = "Based on the results for the time dependence of F, Ca, Si and Al amount dissolved from hot metal pretreatment slags, the behavior of fluorine dissolution has been examined. It was found that the amount of fluorine dissolved from hot metal pretreatment slag depends on CaO/SiO2 mass ratio and fluorine content in slag. This trend is obvious in the case of synthetic slags. Fluorine ion in solution is incorporated into CaO-SiO2-H2O and CaO-SiO2-Al2O3-H2O gels during the formation of these gels. Therefore, it was found difficult to estimate the amount of fluorine in solution from the amount of F-containing mineral phases and slag compositions.",

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AU - Inoue, Ryo

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AB - Based on the results for the time dependence of F, Ca, Si and Al amount dissolved from hot metal pretreatment slags, the behavior of fluorine dissolution has been examined. It was found that the amount of fluorine dissolved from hot metal pretreatment slag depends on CaO/SiO2 mass ratio and fluorine content in slag. This trend is obvious in the case of synthetic slags. Fluorine ion in solution is incorporated into CaO-SiO2-H2O and CaO-SiO2-Al2O3-H2O gels during the formation of these gels. Therefore, it was found difficult to estimate the amount of fluorine in solution from the amount of F-containing mineral phases and slag compositions.

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