Development of Theoretical Basis for Low-Percentage Ferrotitanium Production Technology with Using Ferrosilicon Aluminium

Baisanov, S. O.; Tolokonnikova, V.; Narikbayeva, G. I.; Korsukova, I. Ya.; Vorobkalo, N. R.

doi:10.1134/s0018151x22050194

Cited by 2 publications

(5 citation statements)

References 5 publications

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“…The obtained results allow us to conclude that the proposed method is universally applicable when it comes to analytically describing phase diagrams from the perspective of the Bjerrum-Guggenheim concept [9] - [12]. The available experimental results on binary phase diagrams contain two coordinates for each point on the liquidus and solidus lines, namely: the concentration of the crystallizing component Х 𝑖 𝐿(𝑆) and the temperature K.…”

Section: Resultsmentioning

confidence: 90%

“…It starts from the melting point of Pb3Ca (939 K) and goes through to the melting temperature of lead (600 K) [14] - [19]. The procedure for mathematical description of monovariant phase equilibrium lines on the phase diagram based on the concept of the Bjerrum-Guggenheim osmotic coefficient is described in [9] - [12]. For thermodynamic calculations, the enthalpy of melting was assumed to be equal to ∆H m,CaPb3 == 7450 J/mol at a melting temperature of 939 K [14], [15], [19].…”

Section: Ca -Pb Phase Diagrammentioning

confidence: 99%

“…3). The mathematical expression of the Pb3Ca crystallization line in the Pb3Ca-Pb system is given in the form of a semi-empirical dependence of the Schroeder-Le Chatelier equation (9): , (9. )…”

mentioning

confidence: 99%

“…Table 2 shows the results on the convergence of the calculated (9) and experimental data ( We will now consider the Pb3Ca crystallization region for the partial Pb3Ca-Ca system. We conducted the same manipulations as in the first area.…”

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confidence: 99%

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Thermodynamic Analysis of Phase Diagrams Based on the Concept of the Bjerrum–guggenheim Osmotic Coefficient

Baisanov,

Lu,

Zhinova

et al. 2024

Acta Metall Slovaca

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The aim of this study is to theoretically confirm or refute the high degree of lead and zinc volatilisation from the Shalkiya deposit (polymetallic refractory ores) by means of analysing the phase diagrams and the behaviour of the osmotic coefficient according to the Bjerrum-Guggenheim equation along the liquidus line for binary systems based on calcium. From the plots depicting the dependence of the Bjerrum-Guggenheim osmotic coefficient on activity, one can infer the structure of the melt (positive <1 or negative >1). That is, if the values of the Bjerrum-Guggenheim osmotic coefficient in a binary system indicate a positive character of interaction between the components, it implies interaction between like atoms in the melt, whereas negative values indicate interaction between unlike atoms, suggesting the formation of complex, high-temperature compounds, which would be undesirable in our case. The question related to the formation of complex high-temperature chemical compounds with impurity elements such as zinc and lead in the Fe-Si-Al-Ca-Mg-Zn-Pb system remains unresolved.

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Section: Resultsmentioning

confidence: 90%

Section: Ca -Pb Phase Diagrammentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Thermodynamic Analysis of Phase Diagrams Based on the Concept of the Bjerrum–guggenheim Osmotic Coefficient

Baisanov,

Lu,

Zhinova

et al. 2024

Acta Metall Slovaca

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“…In this vein, the innovative use of thermodynamic diagram analysis emerges as a critical player, offering insights into phase compositions and structures under diverse conditions. This paper unveils a unique study of the Fe-Si-Al-Mn system, employing thermodynamicdiagram analysis to construct phase relationship diagrams for distinct components of this system [1][2][3][4][5]. A phase diagram is essential for visualising different phases, their distribution, and composition at various temperatures and compositions.…”

Section: Introductionmentioning

confidence: 99%

THEORETICAL AND EXPERIMENTAL MODELING OF THE PROCESS OF MELTING COMPLEX ALLOYED STEELS (Fe-Si-Al-Mn)

Kelamanov,

Kyatbay,

Yerekeyeva

et al. 2024

Acta Metall Slovaca

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In the practice of complex theoretical research of multicomponent systems, the so-called thermodynamic-diagram method of analysis is known, which significantly simplifies the study of phase transformations in multicomponent systems by dividing them into thermodynamically stable elementary partial subsystems of equal dimensionality as the main ones. Thermodynamic-diagram analysis combines the thermodynamic assessment of chemical interactions between components in the studied system with a geometric diagram. Such a combination, as studies of the physicochemical principles of refractories and ferroalloys production have shown, proves to be productive in interpreting chemical interactions in complex systems.

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Development of Theoretical Basis for Low-Percentage Ferrotitanium Production Technology with Using Ferrosilicon Aluminium

Cited by 2 publications

References 5 publications

Thermodynamic Analysis of Phase Diagrams Based on the Concept of the Bjerrum–guggenheim Osmotic Coefficient

Thermodynamic Analysis of Phase Diagrams Based on the Concept of the Bjerrum–guggenheim Osmotic Coefficient

THEORETICAL AND EXPERIMENTAL MODELING OF THE PROCESS OF MELTING COMPLEX ALLOYED STEELS (Fe-Si-Al-Mn)

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