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Development of sinter structure and correlation with its magnetic susceptibility for different basicity indices

AuthorsLarrea, María Teresa; Formoso Prego, Antonio; Sirgado, M.; Gutiérrez, A.; Gómez, P. P.; Cores Sánchez, A.
KeywordsBlast Furnace practice
Iron oxides
Magnetic properties
Mechanical properties
Scanning electron microscopy
Magnetic susceptibility
Sinter basicity
Sinter structure
Iron ore treatment
Issue Date1992
PublisherTaylor & Francis
CitationIronmaking and Steelmaking 19(4): 311-319 (1992)
AbstractTwo series of sinters have been made in a sintering pilot plant. The starting material consisted of two industrial ore mixtures. Sinter structure was studied using electron microscopy, with special attention being paid to the SFCA (silicoferrite of calcium and aluminium) phases, which confer to the sinter an optimum behaviour in the blast furnace. It was confirmed that these phases become more abundant as the sinter basicity increases. The magnetic susceptibility and mechanical strength of the sinters were determined. It was confirmed that a correlation exists between these parameters and basicity, which makes it possible to select from each series of sinters the optimum basicity sinter corresponding to the start of stabilisation of magnetic susceptibility and the appearance of free lime in their structure.
Identifiersissn: 0301-9233
e-issn: 1743-2812
Appears in Collections:(CENIM) Artículos
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