Dissolution mechanism of Al2O3 in refining slags containing Ce2O3
In the present work, the rate of dissolution of Al2O3 rod in CaO-SiO2-Al2O3 and CaO-SiO2-Al2O3-Ce2O3 slags were carried out in the temperature range of 1793 K (1520ºC) - 1853 K (1580ºC) under static conditions. The cross section of the rod and the boundary layers were identified and analyze...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2016-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2016/1450-53391600004W.pdf |
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| author | Wang L.J. Wang Q. Li J.M. Chou K.C. |
| author_facet | Wang L.J. Wang Q. Li J.M. Chou K.C. |
| author_sort | Wang L.J. |
| collection | DOAJ |
| description | In the present work, the rate of dissolution of Al2O3 rod in CaO-SiO2-Al2O3
and CaO-SiO2-Al2O3-Ce2O3 slags were carried out in the temperature range of
1793 K (1520ºC) - 1853 K (1580ºC) under static conditions. The cross section
of the rod and the boundary layers were identified and analyzed by SEM-EDS.
The dissolution of Al2O3 was favored with the increasing CaO/Al2O3 ratio,
elevating temperatures as well as the addition of Ce2O3. An intermediate
product 3CaO5Al2O3Ce2O3 was detected. The mechanism of dissolution of Al2O3
in the Ce2O3 containing slag were also proposed as three steps involved: 1)
the formation of calcium aluminates CaO•Al2O3 at the interface 2) the
formation of 3CaO5Al2O3Ce2O3 as the reaction progresses; and 3) the
dissolution of 3CaO5Al2O3Ce2O3 into the slag. |
| format | Article |
| id | doaj-art-dc53bad14158491886ee13a7f2f1752c |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-dc53bad14158491886ee13a7f2f1752c2025-02-02T09:44:42ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752016-01-01521354010.2298/JMMB140706004W1450-53391600004WDissolution mechanism of Al2O3 in refining slags containing Ce2O3Wang L.J.0Wang Q.1Li J.M.2Chou K.C.3University of Science and Technology, State Key lab of Advanced Metallurgy, Beijing, China + University of Science and Technology, School of Metallurgical and Ecological Engineering, Dept. of Physical chemistry, Beijing, ChinaUniversity of Science and Technology, State Key lab of Advanced Metallurgy, Beijing, China + University of Science and Technology, School of Metallurgical and Ecological Engineering, Dept. of Physical chemistry, Beijing, ChinaTaiyuan Iron & Steel Group Co., Ltd., Shanxi, ChinaUniversity of Science and Technology, State Key lab of Advanced Metallurgy, Beijing, China + University of Science and Technology, School of Metallurgical and Ecological Engineering, Dept. of Physical chemistry, Beijing, ChinaIn the present work, the rate of dissolution of Al2O3 rod in CaO-SiO2-Al2O3 and CaO-SiO2-Al2O3-Ce2O3 slags were carried out in the temperature range of 1793 K (1520ºC) - 1853 K (1580ºC) under static conditions. The cross section of the rod and the boundary layers were identified and analyzed by SEM-EDS. The dissolution of Al2O3 was favored with the increasing CaO/Al2O3 ratio, elevating temperatures as well as the addition of Ce2O3. An intermediate product 3CaO5Al2O3Ce2O3 was detected. The mechanism of dissolution of Al2O3 in the Ce2O3 containing slag were also proposed as three steps involved: 1) the formation of calcium aluminates CaO•Al2O3 at the interface 2) the formation of 3CaO5Al2O3Ce2O3 as the reaction progresses; and 3) the dissolution of 3CaO5Al2O3Ce2O3 into the slag.http://www.doiserbia.nb.rs/img/doi/1450-5339/2016/1450-53391600004W.pdfclean steeldissolution rateinclusionsaluminarefining slagCe2O3 |
| spellingShingle | Wang L.J. Wang Q. Li J.M. Chou K.C. Dissolution mechanism of Al2O3 in refining slags containing Ce2O3 Journal of Mining and Metallurgy. Section B: Metallurgy clean steel dissolution rate inclusions alumina refining slag Ce2O3 |
| title | Dissolution mechanism of Al2O3 in refining slags containing Ce2O3 |
| title_full | Dissolution mechanism of Al2O3 in refining slags containing Ce2O3 |
| title_fullStr | Dissolution mechanism of Al2O3 in refining slags containing Ce2O3 |
| title_full_unstemmed | Dissolution mechanism of Al2O3 in refining slags containing Ce2O3 |
| title_short | Dissolution mechanism of Al2O3 in refining slags containing Ce2O3 |
| title_sort | dissolution mechanism of al2o3 in refining slags containing ce2o3 |
| topic | clean steel dissolution rate inclusions alumina refining slag Ce2O3 |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2016/1450-53391600004W.pdf |
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