Thermodynamic Study on MgO Solubility in High-Alumina-Content Slag System

Yoon, Cheol Min; Park, Young Joo; Min, Dong Joon

doi:10.1007/s11663-018-1317-5

Cited by 17 publications

(2 citation statements)

References 44 publications

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“…However, there is a trade-off between increasing basicity value and MgO content in counteracting the viscosity of slag. This is because the limiting solubility of MgO in the alumino-silicate slags is restricted by the basicity value [61]. When the C/S ratio increases, the MgO solubility decreases and thus it cannot be arbitrarily increased.…”

Section: Resultsmentioning

confidence: 99%

Optimization of high alumina slag practice in blast furnace ironmaking: an industrial approach. Part 2: Data-driven aspects

Pal,

Sahoo,

Biswajeet

et al. 2023

Ironmaking & Steelmaking

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The prediction of transport and thermodynamic properties of the blast furnace slag is an experimentally tedious job to accomplish as seen in part-1 of this work. Literature studies have shown that the use of machine learning in the determination of the properties as a function of composition is an effective technique for glassy slags. However, the application of machine learning and data science techniques in the prediction of high alumina slag properties has not been studied extensively so far. In this paper, the use of Support Vector Machine (SVM) and ExtraTrees Regressor have been done to predict the viscosity, liquidus temperature, and other thermodynamic properties of blast furnace type slag in the high alumina regime, i.e. Al 2 O 3 varying from 18 to 22 wt-%. The minimization of detrimental effects of high alumina slag has been studied by varying the MgO content and CaO/SiO 2 ratio in the range of 8-12 wt-% and 0.8-1.2, respectively. The accuracy of models has been tuned to be fairly high and the results of the prediction have been discussed with possible solutions to operate under the high alumina regime of blast furnace slag.

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Section: Resultsmentioning

confidence: 99%

Optimization of high alumina slag practice in blast furnace ironmaking: an industrial approach. Part 2: Data-driven aspects

Pal,

Sahoo,

Biswajeet

et al. 2023

Ironmaking & Steelmaking

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“…Various slags are involved in the metallurgical production process, such as blast furnace slag, hot metal pretreatment slag, steel slag in the steelmaking process, and protective slag used in the continuous casting process [1][2][3][4][5]. Different slags have different properties and play different roles.…”

Section: Introductionmentioning

confidence: 99%

A new method for evaluating the melting performance of the slag

Jiang

Tian

Hao

et al. 2023

Ironmaking & Steelmaking

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Aiming at the shortcomings of traditional slag use of height to represent melting temperature, the melting performance of desulfurization slag under different binary alkalinity is tested, and any time image in the melting process is binarized to obtain the realtime area of slag heating and melting process.The area change rate is obtained from the real-time area and the initial area, and the melting performance of the slag is evaluated by the area change rate. The results show that using the change of the whole area of the slag instead of the change of the height to evaluate the melting performance of the slag can comprehensively evaluate the melting process of the slag, which not only improves the accuracy and universality of the evaluation of the melting performance of the slag but also shows the change rule of the low-temperature slag expansion process.

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