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Evaluation of Iron Losses during Desulfurazation of Hot Metal by Modern Reagents
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2015 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2015. , vii, 30 p.
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-169088ISBN: 978-91-7595-610-7 (print)OAI: oai:DiVA.org:kth-169088DiVA: diva2:819679
Presentation
2015-06-12, Sal Kuben N111, Brinellvägen 23, KTH, Stockholm, 10:30 (English)
Opponent
Supervisors
Note

QC 20150611

Available from: 2015-06-11 Created: 2015-06-11 Last updated: 2015-06-11Bibliographically approved
List of papers
1. Characterization of Metal Droplets in Slag after Desulfurization of Hot Metal
Open this publication in new window or tab >>Characterization of Metal Droplets in Slag after Desulfurization of Hot Metal
2015 (English)In: ISIJ International, ISSN 0915-1559, E-ISSN 1347-5460, Vol. 55, no 3, 570-577 p.Article in journal (Refereed) Published
Abstract [en]

Iron losses in slag during an intensive desulfurization of hot metal can reach 0.6-1.1% from the total amount of processed hot metal. The characteristics of different metal droplets (such as morphology, number, size, composition and solidification structure) in industrial slag samples after desulfurization were investigated using SEM. All metal droplets in the slag were classified into three groups according to morphology: Type A - spherical/oval; Type B - spherical/irregular; Type C - irregular. Thereafter, some mechanisms for involving of different metal droplets into the slag during desulfurization process were studied based on obtained characteristics of metal droplets. Moreover, a possibility to remove those metal droplets from the liquid slag was estimated based on Stokes law. In addition, the effect of some parameters (such as slag viscosity and size of different metal droplets in this slag) on the possibility to reduce the iron losses during desulfurization of hot metal was considered.

Keyword
hot metal, desulfurization, iron losses, metal droplets, slag
National Category
Metallurgy and Metallic Materials
Identifiers
urn:nbn:se:kth:diva-165238 (URN)10.2355/isijinternational.55.570 (DOI)000351566600013 ()2-s2.0-84928163017 (Scopus ID)
Note

QC 20150505

Available from: 2015-05-05 Created: 2015-04-24 Last updated: 2017-12-04Bibliographically approved
2. Effect of nepheline syenite on iron losses in slags during desulphurization of hot metal
Open this publication in new window or tab >>Effect of nepheline syenite on iron losses in slags during desulphurization of hot metal
(English)Manuscript (preprint) (Other academic)
National Category
Metallurgy and Metallic Materials
Identifiers
urn:nbn:se:kth:diva-169086 (URN)
Note

QS 2015

Available from: 2015-06-11 Created: 2015-06-11 Last updated: 2015-06-11Bibliographically approved

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