Influence of Alkali Metal Oxide Slag Aggregating Agent on the Performance of Magnesium Desulfurization Slags
This is an article in the field of metallurgical engineering. In view of the thin slag layer in the desulfurization process of magnesium-based desulfurizers, it is difficult to remove cleanly, resulting in high-concentration desulfurization slag being brought into the converter, causing the problem...
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Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences
2024-12-01
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| Series: | Kuangchan zonghe liyong |
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| Online Access: | http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2024.06.006 |
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| author | Wufeng JIANG Liang TIAN Suju HAO He BO Tengfei MA Yuzhu ZHANG |
| author_facet | Wufeng JIANG Liang TIAN Suju HAO He BO Tengfei MA Yuzhu ZHANG |
| author_sort | Wufeng JIANG |
| collection | DOAJ |
| description | This is an article in the field of metallurgical engineering. In view of the thin slag layer in the desulfurization process of magnesium-based desulfurizers, it is difficult to remove cleanly, resulting in high-concentration desulfurization slag being brought into the converter, causing the problem of sulfur back in the converter. The liquidus diagram of CaO-SiO2-Al2O3-MgO(FeO) desulfurization slag was drawn by FactSage software, and the phase composition of desulfurization slag and the influence of desulfurization slag composition on the liquid phase area were analyzed, and the sensitivity of desulfurization slag to temperature was reduced, which is conducive to slag removal. A slag aggregation agent whose main component is SiO2 was designed to control the performance of desulfurization slag. The initial melting temperature, hemispherical point temperature and fluidity temperature of the desulfurization slag were measured by a melting point melt rate meter, and the effect of the addition amount of slag aggregation agent on the melting performance of the desulfurization slag was studied. The results show that when the ratio of desulfurization slag to slag aggregation agent is 5∶2～5∶5, the temperature difference between the initial melting temperature and the fluidity temperature of the desulfurization slag can be increased, and the thermal stability of the desulfurized slag can be improved. The ratio of acid desulfurization slag added to the slag aggregate agent should be low, and the desulfurization slag basicity can be increased appropriately to increase the slag aggregate agent ratio. |
| format | Article |
| id | doaj-art-5cbfba5e216a407fba97ce7b0eb70100 |
| institution | Kabale University |
| issn | 1000-6532 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences |
| record_format | Article |
| series | Kuangchan zonghe liyong |
| spelling | doaj-art-5cbfba5e216a407fba97ce7b0eb701002025-01-16T07:32:24ZzhoInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological SciencesKuangchan zonghe liyong1000-65322024-12-01456333910.3969/j.issn.1000-6532.2024.06.0062024-06jiangwufengInfluence of Alkali Metal Oxide Slag Aggregating Agent on the Performance of Magnesium Desulfurization SlagsWufeng JIANG0Liang TIAN1Suju HAO2He BO3Tengfei MA4Yuzhu ZHANG5School of Metallurgy and Energy, North China University of Science and Technology, Ministry of Education Key Laboratory of Modern Metallurgy Technology, Tangshan 063210, Hebei , ChinaSchool of Metallurgy and Energy, North China University of Science and Technology, Ministry of Education Key Laboratory of Modern Metallurgy Technology, Tangshan 063210, Hebei , ChinaSchool of Metallurgy and Energy, North China University of Science and Technology, Ministry of Education Key Laboratory of Modern Metallurgy Technology, Tangshan 063210, Hebei , ChinaDepartment of Materials Engineering, Tangshan Vocational College of Science and Technology, Tangshan 063001, Hebei , ChinaSchool of Metallurgy and Energy, North China University of Science and Technology, Ministry of Education Key Laboratory of Modern Metallurgy Technology, Tangshan 063210, Hebei , ChinaSchool of Metallurgy and Energy, North China University of Science and Technology, Ministry of Education Key Laboratory of Modern Metallurgy Technology, Tangshan 063210, Hebei , ChinaThis is an article in the field of metallurgical engineering. In view of the thin slag layer in the desulfurization process of magnesium-based desulfurizers, it is difficult to remove cleanly, resulting in high-concentration desulfurization slag being brought into the converter, causing the problem of sulfur back in the converter. The liquidus diagram of CaO-SiO2-Al2O3-MgO(FeO) desulfurization slag was drawn by FactSage software, and the phase composition of desulfurization slag and the influence of desulfurization slag composition on the liquid phase area were analyzed, and the sensitivity of desulfurization slag to temperature was reduced, which is conducive to slag removal. A slag aggregation agent whose main component is SiO2 was designed to control the performance of desulfurization slag. The initial melting temperature, hemispherical point temperature and fluidity temperature of the desulfurization slag were measured by a melting point melt rate meter, and the effect of the addition amount of slag aggregation agent on the melting performance of the desulfurization slag was studied. The results show that when the ratio of desulfurization slag to slag aggregation agent is 5∶2～5∶5, the temperature difference between the initial melting temperature and the fluidity temperature of the desulfurization slag can be increased, and the thermal stability of the desulfurized slag can be improved. The ratio of acid desulfurization slag added to the slag aggregate agent should be low, and the desulfurization slag basicity can be increased appropriately to increase the slag aggregate agent ratio.http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2024.06.006metallurgical engineeringfactsagemelting point and melting ratedesulfurization slagslag aggregating agent |
| spellingShingle | Wufeng JIANG Liang TIAN Suju HAO He BO Tengfei MA Yuzhu ZHANG Influence of Alkali Metal Oxide Slag Aggregating Agent on the Performance of Magnesium Desulfurization Slags Kuangchan zonghe liyong metallurgical engineering factsage melting point and melting rate desulfurization slag slag aggregating agent |
| title | Influence of Alkali Metal Oxide Slag Aggregating Agent on the Performance of Magnesium Desulfurization Slags |
| title_full | Influence of Alkali Metal Oxide Slag Aggregating Agent on the Performance of Magnesium Desulfurization Slags |
| title_fullStr | Influence of Alkali Metal Oxide Slag Aggregating Agent on the Performance of Magnesium Desulfurization Slags |
| title_full_unstemmed | Influence of Alkali Metal Oxide Slag Aggregating Agent on the Performance of Magnesium Desulfurization Slags |
| title_short | Influence of Alkali Metal Oxide Slag Aggregating Agent on the Performance of Magnesium Desulfurization Slags |
| title_sort | influence of alkali metal oxide slag aggregating agent on the performance of magnesium desulfurization slags |
| topic | metallurgical engineering factsage melting point and melting rate desulfurization slag slag aggregating agent |
| url | http://www.kczhly.com/en/article/doi/10.3969/j.issn.1000-6532.2024.06.006 |
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