Dissolution Behavior of Fluorine from AOD Slag after Treatments for Volume Stabilization

Qi Xing Yang; An Jun Xu; Fredrik Engström; Feng Lan Han; Peng Xue; Dong Feng He; Bo Björkman

doi:10.4028/www.scientific.net/AMM.587-589.849

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 587-589Dissolution Behavior of Fluorine from AOD Slag...

Dissolution Behavior of Fluorine from AOD Slag after Treatments for Volume Stabilization

Abstract:

AOD slag samples from steel works of Outokumpu Stainless Company were used to study F-dissolution relating to treatments for volume stabilization. Results from the slag tests and sample characterizations indicate that the slag re-melting with or without reduction and granulation with either water or gas have rather small effects on F leaching, as well as formation of different C₂S polymorphs. The chemical composition and cooling condition are the two important parameters to control F leaching from slag samples. These two parameters should be combined together in an optimum way by the steel industry to treat slags for F-immobilization.

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Periodical:

Applied Mechanics and Materials (Volumes 587-589)

Pages:

849-855

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.587-589.849

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Online since:

July 2014

Authors:

Qi Xing Yang, An Jun Xu*, Fredrik Engström, Feng Lan Han, Peng Xue, Dong Feng He, Bo Björkman

Keywords:

AOD, C₂S, Fluorine, Granulation, Immobilisation, Leaching, Slag, Stabilization

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* - Corresponding Author

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