Microstructure characterisation of freeze linings formed in a copper slag cleaning slag
The initial growth rate of freeze linings on water-cooled elements submerged in molten iron silicate slag is fast. The freeze lining microstructure forming on water cooled steel surface in a high-silica, slag cleaning furnace slag of a direct-to-blister copper smelter is mostly glassy or am...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2015-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2015/1450-53391500004J.pdf |
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| author | Jansson J. Taskinen P. Kaskiala M. |
| author_facet | Jansson J. Taskinen P. Kaskiala M. |
| author_sort | Jansson J. |
| collection | DOAJ |
| description | The initial growth rate of freeze linings on water-cooled elements submerged
in molten iron silicate slag is fast. The freeze lining microstructure
forming on water cooled steel surface in a high-silica, slag cleaning furnace
slag of a direct-to-blister copper smelter is mostly glassy or amorphous. It
contains 5-30 μm magnetite crystals, very small and larger copper droplets as
well as small magnetite and silicate nuclei embedded in the glassy
silica-rich matrix. Chemically the formed freeze linings are more silica-rich
than the slag from which they were generated. Magnetite (spinel) is the
primary phase of the solidifying SCF slag but it does not form a continuous
network through the freeze lining. Its strength is given by the intergranular
silica-rich phase which initially is glassy or microcrystalline. Due to only
partial slag reduction in the SCF process, large magnetite crystals are
present in the freeze lining and seem to interact physically with copper
droplets. |
| format | Article |
| id | doaj-art-492adc3824d04c1e8e494421f94d7c50 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-492adc3824d04c1e8e494421f94d7c502025-02-02T08:44:47ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752015-01-01511414810.2298/JMMB130320004J1450-53391500004JMicrostructure characterisation of freeze linings formed in a copper slag cleaning slagJansson J.0Taskinen P.1Kaskiala M.2School of Chemical Technology, Department of Materials Science and Engineering, Aalto University, Espoo, FinlandSchool of Chemical Technology, Department of Materials Science and Engineering, Aalto University, Espoo, FinlandSchool of Chemical Technology, Department of Materials Science and Engineering, Aalto University, Espoo, FinlandThe initial growth rate of freeze linings on water-cooled elements submerged in molten iron silicate slag is fast. The freeze lining microstructure forming on water cooled steel surface in a high-silica, slag cleaning furnace slag of a direct-to-blister copper smelter is mostly glassy or amorphous. It contains 5-30 μm magnetite crystals, very small and larger copper droplets as well as small magnetite and silicate nuclei embedded in the glassy silica-rich matrix. Chemically the formed freeze linings are more silica-rich than the slag from which they were generated. Magnetite (spinel) is the primary phase of the solidifying SCF slag but it does not form a continuous network through the freeze lining. Its strength is given by the intergranular silica-rich phase which initially is glassy or microcrystalline. Due to only partial slag reduction in the SCF process, large magnetite crystals are present in the freeze lining and seem to interact physically with copper droplets.http://www.doiserbia.nb.rs/img/doi/1450-5339/2015/1450-53391500004J.pdfcopper smeltingslagcooling elementfreeze lining |
| spellingShingle | Jansson J. Taskinen P. Kaskiala M. Microstructure characterisation of freeze linings formed in a copper slag cleaning slag Journal of Mining and Metallurgy. Section B: Metallurgy copper smelting slag cooling element freeze lining |
| title | Microstructure characterisation of freeze linings formed in a copper slag cleaning slag |
| title_full | Microstructure characterisation of freeze linings formed in a copper slag cleaning slag |
| title_fullStr | Microstructure characterisation of freeze linings formed in a copper slag cleaning slag |
| title_full_unstemmed | Microstructure characterisation of freeze linings formed in a copper slag cleaning slag |
| title_short | Microstructure characterisation of freeze linings formed in a copper slag cleaning slag |
| title_sort | microstructure characterisation of freeze linings formed in a copper slag cleaning slag |
| topic | copper smelting slag cooling element freeze lining |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2015/1450-53391500004J.pdf |
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