Theoretical characteristics of carbon-ferrochrome smelting in furnaces produced by Aksai Ferroalloy plant

Privalov, O. E.; Kulinich, V. I.; Golovachev, N. P.; Суслов, А. В.; Prokop’ev, L. Ya.

doi:10.3103/s0967091208020125

Cited by 3 publications

(2 citation statements)

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“…The use of a charge consisting of only three components significantly simplifies the smelting of the complex Fe-Si-Mn-Cr ferroalloy, compared to previously used and proposed technologies [5,6]. The employment of unenriched raw ores and high-ash coal also results in a lower cost of production for the ferroalloy [29,30].…”

Section: Research Of Smelting Productsmentioning

confidence: 99%

Production of complex Fe-Si-Mn-Cr ferroalloy using high-ash coal: a sustainable metallurgical approach

Makhambetov,

Gabdullin,

Zhakan

et al. 2024

Mater. Res. Express

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The article presents the results of comprehensive thermodynamic modeling and laboratory tests conducted for smelting a complex ferroalloy of silicon, manganese, and chromium (Fe-Si-Mn-Cr) from chromium, medium-grade manganese ores, and high-ash coals from Kazakhstan. Thermodynamic analysis was performed using HSC Chemistry software to model the Fe-Si-Mn-Cr smelting process over a temperature range of 900–1800 ℃. This analysis involved six actual charge compositions with solid reductant (Csolid) consumption ranging from 5 to 20 kg per 100 kg of Cr and Mn ore mixture. The mechanism of the combined carbothermic reduction of Cr, Mn, Si, and Fe was investigated using the Cr-Si-Al-Ca-Mn-Mg-O-C system. According to thermodynamic data, the optimal consumption of Csolid per 100 kg of ore mixture is 17 kg, and the optimal temperature range for smelting ferroalloys is between 1600 and 1700 ℃. Laboratory tests were conducted in a high-temperature Tamman furnace at 1700 ℃, resulting in experimental samples of the new complex ferroalloy with an average composition of 14.85% Fe, 14.05% Si, 7.55% Mn, 57.54% Cr, and 6.01% C, with P < 0.03% and S < 0.02%. The phase composition included (Cr, Fe, Mn)3Si and carbides Cr23C6 and (Fe, Mn)3C. The resulting alloy is suitable for alloying high-carbon and tool steels.

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Section: Research Of Smelting Productsmentioning

confidence: 99%

Production of complex Fe-Si-Mn-Cr ferroalloy using high-ash coal: a sustainable metallurgical approach

Makhambetov,

Gabdullin,

Zhakan

et al. 2024

Mater. Res. Express

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“…One of the most serious problems in the trapping of dust in exhausted gas from furnaces is significant differences in design of ferroalloys furnaces. The types of furnaces include open, semiopen, closed, hermetical [15]. Obviously most efficient trapping of dust and excluding of ferroalloys gas diluting require applying of closed and hermetical furnaces [16].…”

Section: Object Of Studymentioning

confidence: 99%

Forming and Utilizing Ferrochromium Production Waste

Kascheev

Жучков

Zayakin

2020

MSF

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Analysis of forming chromium-bearing ferroalloys production waste in Russian Federation was performed. Chemical, phase, fractional compositions and physico-chemical, technological properties of high-carbon ferrochromium slag were defined. Physico-chemical, thermo-mechanical and thermo-physical properties of fire-resistant materials, obtained from ferrochromium production slag and dust, were researched. It was shown that researched waste may be utilized as raw for fire-resistant materials production. Because of their chemical and phase composition, researched materials may be utilized for production of forsterite-spinel-based and forsterite-spinel-periclase-based fire-resistant materials. Technological properties of researched materials allow obtaining dense strength fire-resistant materials. Such fire-resistant materials are promising in the field of ferrous metallurgy (lining up furnaces, ladles and overflow launders in ferroalloys production).

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