Effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O on Lime Dissolution in Steelmaking Slag
The mechanism of lime dissolution in steelmaking slag and the factors that influence the dissolution rate are highly significant in improving the efficiency of the steelmaking process; however, they are yet to be fully understood. Here, the effects of Al<sub>2</sub>O<sub>3</sub&...
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MDPI AG
2023-01-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/2/209 |
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| author | Kan Yu Yanling Zhang Shuai Zhang Ming Gao |
| author_facet | Kan Yu Yanling Zhang Shuai Zhang Ming Gao |
| author_sort | Kan Yu |
| collection | DOAJ |
| description | The mechanism of lime dissolution in steelmaking slag and the factors that influence the dissolution rate are highly significant in improving the efficiency of the steelmaking process; however, they are yet to be fully understood. Here, the effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O additives on the dissolution rate of lime and the composition of molten slag were investigated using a rotating cylinder technique. The results indicate that the promotion coefficients at 1400 °C decrease in the order of Na<sub>2</sub>O > TiO<sub>2</sub> > Al<sub>2</sub>O<sub>3</sub>. Furthermore, the CaO dissolution rate and kinetic parameters were calculated, and the lime dissolution mechanisms in the presence or absence of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and Na<sub>2</sub>O were compared. Additionally, the data show that ATN (a mixture with a mass ratio of Al<sub>2</sub>O<sub>3</sub>:TiO<sub>2</sub>:Na<sub>2</sub>O = 15:4:3) can be used as a suitable flux in the steelmaking process. |
| first_indexed | 2024-03-11T08:26:46Z |
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| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T08:26:46Z |
| publishDate | 2023-01-01 |
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| record_format | Article |
| series | Metals |
| spelling | doaj.art-eebb5229dab74d3cb3f2cf0adf267de62023-11-16T22:06:12ZengMDPI AGMetals2075-47012023-01-0113220910.3390/met13020209Effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O on Lime Dissolution in Steelmaking SlagKan Yu0Yanling Zhang1Shuai Zhang2Ming Gao3State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road 30, Haidian District, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road 30, Haidian District, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road 30, Haidian District, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Xueyuan Road 30, Haidian District, Beijing 100083, ChinaThe mechanism of lime dissolution in steelmaking slag and the factors that influence the dissolution rate are highly significant in improving the efficiency of the steelmaking process; however, they are yet to be fully understood. Here, the effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O additives on the dissolution rate of lime and the composition of molten slag were investigated using a rotating cylinder technique. The results indicate that the promotion coefficients at 1400 °C decrease in the order of Na<sub>2</sub>O > TiO<sub>2</sub> > Al<sub>2</sub>O<sub>3</sub>. Furthermore, the CaO dissolution rate and kinetic parameters were calculated, and the lime dissolution mechanisms in the presence or absence of Al<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub>, and Na<sub>2</sub>O were compared. Additionally, the data show that ATN (a mixture with a mass ratio of Al<sub>2</sub>O<sub>3</sub>:TiO<sub>2</sub>:Na<sub>2</sub>O = 15:4:3) can be used as a suitable flux in the steelmaking process.https://www.mdpi.com/2075-4701/13/2/209Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>Olime dissolutionkineticssteelmaking slag |
| spellingShingle | Kan Yu Yanling Zhang Shuai Zhang Ming Gao Effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O on Lime Dissolution in Steelmaking Slag Metals Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O lime dissolution kinetics steelmaking slag |
| title | Effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O on Lime Dissolution in Steelmaking Slag |
| title_full | Effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O on Lime Dissolution in Steelmaking Slag |
| title_fullStr | Effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O on Lime Dissolution in Steelmaking Slag |
| title_full_unstemmed | Effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O on Lime Dissolution in Steelmaking Slag |
| title_short | Effects of Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O on Lime Dissolution in Steelmaking Slag |
| title_sort | effects of al sub 2 sub o sub 3 sub tio sub 2 sub na sub 2 sub o on lime dissolution in steelmaking slag |
| topic | Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>/Na<sub>2</sub>O lime dissolution kinetics steelmaking slag |
| url | https://www.mdpi.com/2075-4701/13/2/209 |
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