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Characteristics of steelmaking flue dust
Luleå tekniska universitet.
1999 (English)In: Ironmaking & steelmaking, ISSN 0301-9233, E-ISSN 1743-2812, Vol. 26, no 5, p. 372-377Article in journal (Refereed) Published
Abstract [en]

The physicochemical and surface properties of steelmaking flue dust have been investigated by scanning electron (SEM) and X-ray diffraction (XRD) measurements, chemical analysis, FT-IR studies, zeta potential measurement, Brunauer-Emmett-Teller (BET) surface area determination, and potentiometric titration techniques. The results show that the dust consists of very fine spherical particles, which contain mainly iron oxide, iron ferrite, calcium (magnesium) oxide, calcium (magnesium) carbonate, and other metal oxides. The dust possesses a high BET surface area (14·65 m2 g-1 ) and a reversible surface charge. The point of zero charge pHpzc of the surface is around pH 6. Solubility tests show that the dust releases very little heavy metals in solution in the pH range 4·5-11·8 and has a high capacity to neutralise strong acid in solution

Place, publisher, year, edition, pages
1999. Vol. 26, no 5, p. 372-377
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-2793DOI: 10.1179/030192399677248ISI: 000085050600010Local ID: 07dd1ad0-ff11-11dc-8b65-000ea68e967bOAI: oai:DiVA.org:ltu-2793DiVA, id: diva2:975646
Note
Godkänd; 1999; 20080331 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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