Wettability of Solid Metals by Molten CaO-SiO2-Al2O3 Slag

Parry, G.; Ostrovski, Oleg

doi:10.1007/s11663-008-9181-3

Cited by 10 publications

(10 citation statements)

References 16 publications

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“…[18,19] This estimation results in a buoyancy force of the slag on the bob, 2prrCosh, of approximately 0.15 g. Hence, the effect of surface tension could be neglected, as the weight of the bob is high in comparison to the buoyant force applied by the slag on the bob. The slag densities were measured for two different temperatures (viz.…”

Section: Methodsmentioning

confidence: 99%

Density Measurements of Low Silica CaO-SiO2-Al2O3 Slags

Muhmood

Seetharaman

2010

Metall Mater Trans B

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Density measurements of a low-silica CaO-SiO 2 -Al 2 O 3 system were carried out using the Archimedes principle. A Pt 30 pct Rh bob and wire arrangement was used for this purpose. The results obtained were in good agreement with those obtained from the model developed in the current group as well as with other results reported earlier. The density for the CaO-SiO 2 and the CaO-Al 2 O 3 binary slag systems also was estimated from the ternary values. The extrapolation of density values for high-silica systems also showed good agreement with previous works. An estimation for the density value of CaO was made from the current experimental data. The density decrease at high temperatures was interpreted based on the silicate structure. As the mole percent of SiO 2 was below the 33 pct required for the orthosilicate composition, discrete SiO 4À 4 tetrahedral units in the silicate melt would exist along with O 2-ions. The change in melt expansivity may be attributed to the ionic expansions in the order ofStructural changes in the ternary slag also could be correlated to a drastic change in the value of enthalpy of mixing.

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Section: Methodsmentioning

confidence: 99%

Density Measurements of Low Silica CaO-SiO2-Al2O3 Slags

Muhmood

Seetharaman

2010

Metall Mater Trans B

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“…In the molten BFS, the generation of the sulfur was related to the oxygen partial In molten BFS, the actual oxygen pressure was lower than 10 -3 Pa, so the sulfur was in S 2- [46,47].…”

Section: The Sulfide Capacity Characterizationmentioning

confidence: 99%

Characterizations of the hot blast furnace slag on coal gasification reaction

Duan

Liu

et al. 2016

Applied Thermal Engineering

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The main objective of this research was to comprehensively investigate the role of the hot blast furnace slag (BFS) played in coal gasification reaction process so as to improve the utilization of BFS waste heat and enhance H 2 and CO content in the syngas. The BFS characterizations, such as the heat carrier, catalyst, reactant, and the sulfide capacity were investigated. The results indicated that about 61% BFS waste heat could be recovered by coal gasification, and the exergy loss (EXL) of which was only 409 MJ•t-1 slag. Therefore, the BFS was the favorable heat carrier for coal gasification reaction. Besides, the activation energy (E a

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“…13, and the contact angle was assumed to be 15°, an average contact angle value of the slag/Pt systems. 14,15) The surface tension correction was corresponding to 1.9-2.3% of the measured density.…”

Section: Methodsmentioning

confidence: 99%

Density Measurements of CaO^|^ndash;MnO^|^ndash;SiO2 Slags

2012

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Density measurements of CaO-MnO-SiO2 slags were carried out using the Archimedean method. The density decreased with increasing temperature, and the negative temperature coefficient (-dρ/dT) was in the range of 1.46-3.10 × 10 -1 kg/m 3 K. At a fixed CaO content (25 wt%) and at a fixed SiO2 content (30 wt%), the density of CaO-MnO-SiO2 slag increased with increasing MnO content. The molar volumes of CaO, MnO and SiO2 at 1 773 K were estimated 21.0, 17.2, and 28.0 × 10 -6 m 3 /mol, respectively. The molar excess volume was expressed by , where Ω = -8.97 × 10 -6 m 3 /mol at 1 773 K. The thermal expansion coefficient decreased with increasing XSiO 2 because of the enhanced silicate network structure.KEY WORDS: Archimedean method; CaO-MnO-SiO2 slag; density; molar volume; silicate network structure; thermal expansion coefficient.

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Wettability of Solid Metals by Molten CaO-SiO2-Al2O3 Slag

Cited by 10 publications

References 16 publications

Density Measurements of Low Silica CaO-SiO2-Al2O3 Slags

Density Measurements of Low Silica CaO-SiO2-Al2O3 Slags

Characterizations of the hot blast furnace slag on coal gasification reaction

Density Measurements of CaO^|^ndash;MnO^|^ndash;SiO2 Slags

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