Aluminothermic SHS of ferrotitanium from ilmenite: Influence of Al and KClO4 content of green composition

Azizov, Sh. T.; Kachin, A. R.; Loryan, V. É.; Borovinskaya, I. P.; Mnatsakanyan, A. S.

doi:10.3103/s1061386214030030

Cited by 7 publications

(4 citation statements)

References 1 publication

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“…However, these methods require complicated procedures and high amounts of thermal energy during the synthesis process. The self-propagating high-temperature synthesis (SHS) method utilizes the high-exothermic heat released from fuel agents such as magnesium (Mg) [10][11][12], aluminium (Al) [13][14][15] and titanium (Ti) [16]. Fuel agents were used to initiating the chemical reaction that then propagated selfsustainable until completion.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mg Content on Synthesis of TiC Powder from Leucoxene by Self-Propagating High-Temperature Synthesis Method

Chanadee

Niyomwas

Patcharasit

et al. 2021

ASEAN Sci Tech Rept

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Titanium carbide (TiC) composite powder was synthesized via the self-propagating high-temperature synthesis (SHS) method using leucoxene as a source of titanium oxide (TiO2) and magnesium (Mg) as an initiator. The effect of Mg content on synthesized TiC composite powder was characterized in terms of chemical composition and morphology by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. Results showed that adding 1.5 moles Mg into the reactant system leached with 0.1 M hydrochloric acid solution was the optimal condition, and TiC was apparent in the XRD analysis at a particle size of less than 150 μm.

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Section: Introductionmentioning

confidence: 99%

Effect of Mg Content on Synthesis of TiC Powder from Leucoxene by Self-Propagating High-Temperature Synthesis Method

Chanadee

Niyomwas

Patcharasit

et al. 2021

ASEAN Sci Tech Rept

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“…FeTi alloys are widely used in various industries such as steel, automotive, aerospace, and biomechanics. Generally, they are produced by the remelting process using Ti scrap as the raw Ti source [1][2][3][4][5][6][7][8][9]. However, the increasing price of Ti scrap and the instability in the supply of Ti scrap limit their applications.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Aluminothermic Process for Producing Ferrotitanium Alloy from Ilmenite Concentrate

Choi

Chang

Ryu

et al. 2020

Metals

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The aluminothermic process is used for producing ferrotitanium alloy (FeTi) from an ilmenite concentrate. In this study, based on thermodynamic calculations and experiments, we investigated the effects of adding varying amounts of exothermal agent (NaClO3), slag-forming agent (CaO), and reducing agent (Al) on the recovery ratio of Ti in the aluminothermic process. The thermodynamic calculations suggested that the exothermal agent plays a crucial role in producing the FeTi alloy from the ilmenite concentrate and the maximum Ti grade in the FeTi alloy was approximately 30 wt %. Experimentally, it was verified that the FeTi alloy obtained under the optimum mixing conditions contained 30.2–30.8 wt % Ti, 1.1–1.3 wt % Si, 9.5–11.2 wt % Al, and 56.9–58.0 wt % Fe, along with trace impurities and small amounts of gases such as oxygen (0.35–0.66 wt %) and nitrogen (0.01–0.02 wt %). At the optimum mixing conditions, the recovery ratio of Ti into the obtained FeTi alloy phase was 60.6–68.9%. These results matched closely with the thermodynamic calculations. Therefore, the thermodynamic calculations performed herein are expected to significantly contribute toward the development of new processes and improvement in conventional processes for producing various ferroalloys including the FeTi alloy through the aluminothermic process.

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“…Ilmenite (FeTiO 3 ), a titanium-bearing ore, is abundant and economical [1,2], and is essential for the production of metallic titanium [3] and titanium-containing materials [2,[4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Ferrotitanium is used as a steelmaking additive [18][19][20] and as a raw material for the production of ferrosilicotitanium [21,22].…”

Section: Introductionmentioning

confidence: 99%

“…Ferrotitanium is used as a steelmaking additive [18][19][20] and as a raw material for the production of ferrosilicotitanium [21,22]. There are three main methods for the production of ferrotitanium: re-melting, molten salt electrolysis [4][5][6]19], and the aluminothermic method [12,16].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Ferrotitanium Using Ilmenite with Different Reduction Degrees

Gao

Cheng

et al. 2019

Metals

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The effect of ilmenite with different reduction degrees on the production of ferrotitanium, using a self-propagation high-temperature synthesis method with aluminum as the reducing agent, was investigated. Increasing the degree of reduction not only contributed to lower consumption of aluminum, but also lowered the oxygen content and improved the grades of titanium and iron in the ferrotitanium. The aluminum content of the ferrotitanium increased with an increase in the extent of reduction of ilmenite, so the Al2O3 content formed in the slag decreased with the constant addition of CaO and CaF2 to the Al powder. This decreased relatively the content of high-melting-point CaAl12O19 and increased the contents of low-melting-point CaAl2O4 and CaF2 in the slag, thereby promoting the separation of ferrotitanium and slag. Improving the reduction degree of ilmenite is beneficial to the preparation of ferrotitanium.

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Aluminothermic SHS of ferrotitanium from ilmenite: Influence of Al and KClO4 content of green composition

Cited by 7 publications

References 1 publication

Effect of Mg Content on Synthesis of TiC Powder from Leucoxene by Self-Propagating High-Temperature Synthesis Method

Effect of Mg Content on Synthesis of TiC Powder from Leucoxene by Self-Propagating High-Temperature Synthesis Method

Investigating the Aluminothermic Process for Producing Ferrotitanium Alloy from Ilmenite Concentrate

Preparation of Ferrotitanium Using Ilmenite with Different Reduction Degrees

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