agents were used to optimize the smelting of titanium rich slag. For smelting of titanium rich slag, the low-ash reducing agents were used, i.e., some oxides (SiO2, Al2O3, CaО and MgO) convert into the slag and impoverish target product - slag. The low electrical conductivity and ash content of the reducing agent ensures a high
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The experimental results show that extending the smelting time increases the FeO content in the slag, the LV rose from 0.66 to 5.02, the LTi declined from 206.90 to 114.86, the shorter smelting ...
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Titanium slag Pig iron Air cooling and water cooling Crushing and Screening Drier Co Grinding and Screening Final product Fig.3 Flow chart of the whole process of titanium slag smelting in large-scale fully enclosed DC furnace (1) Raw material preparation In order to reduce the transshipment of raw and
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The core of titanium dioxide slag production lies in the smelting process, a high-temperature operation that transforms the prepared raw materials into titanium slag. This …
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The advantage of the direct reduction–electric furnace smelting process is that the Ti resources from the VTMCs can be recycled, ... Acid oxide in the enrichment of titanium slag is higher than the titanium slag, and the alkaline oxide is even lower; thus, the enrichment of titanium slag can be used in the production of high titanium slag ...
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In order to study the slag composition of vanadium-titanium magnetite in the blast furnace smelting process and slag-iron slag, the slag composition was adjusted by adding different proportions of ...
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smelting of hemo-ilmenite ore with anthracite coal. Titania slag ... Quebec Iron & Titanium and later referred in the text as QIT), located in Sorel Tracy, Province of Quebec, Canada, ramped up from 250,000t ... moderate-temperature hydrometallurgical process to yield an upgraded titania slag with 94.5 mass percent TiO 2. The chemistry and ...
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To comprehensively utilize the low-iron high-vanadium–titanium magnetite, a new method of vortex smelting reduction of vanadium–titanium magnetite was proposed, and the enrichment and reconstitution regularity of Ti-bearing phases in the slag was investigated through X-ray fluorescence spectrometry, X-ray photoelectron spectroscopy, X-ray diffraction analysis, …
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Kim, Y. & Park, H. Estimation of TiO 2-FeO-Na 2 O slag viscosity through molecular dynamics simulations for an energy efficient ilmenite smelting process, Sci. Rep. 9, Article number: 17338 (2019).
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The slag phase mainly consisted of spinel, silicates and wustite, in which the FeO content gradually decreased during the slag evolution process. Anosovite and silicate were the main phases in the slag fraction at the dripping temperature of 1441 °C. Titanium carbide (TiC) was also verified, which was an unfavorable product for the slag ...
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The traditional electric furnace smelting process is always maintained at 1873 K to 2073 K (1600 °C to 1800 °C) for approximately 8 to 10 hours, and it contains 10 to 12 pct FeO …
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The blast furnace smelting process for vanadium titania-magnetite is shown in Fig. 1.The low concentration of TiO 2 with about 1.5 wt.% in the primary mineral can be enriched into titania-bearing slag with more than 20 wt.% TiO x, 29,30 as shown by the composition range in Table I; other oxides including CaO, MgO, SiO 2, and Al 2 O 3 are presented in the slag as …
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common BF slag. The main cause is the existence of titanium carbide and titanium nitride which has a high smelting point in slag and the out phase point can be easily provided for uniform …
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Therefore, this semi-molten reduction process improves the smelting conditions (1673 K (1400 °C), 1.5 hours) to obtain high-grade titanium slag (81 to 82 pct TiO 2) with low FeO content (5.8 to 6.1 pct FeO). However, the very fine particle size of titanium slag is a challenge when using this process.
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The technological researches of production process of the titanium rich slag and titanium-containing ferroalloy were performed on a 200 kVA large-sized laboratory arc single-phase electric furnace with graphite conductive hearth. ... The associated alloyed metal from titanium slag smelting can be applied as a raw material in the steelmaking.
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The core of titanium dioxide slag production lies in the smelting process, a high-temperature operation that transforms the prepared raw materials into titanium slag. This phase occurs in a specialized furnace where the mix of titanium ores and reducing agents are subjected to extremely high temperatures, typically above 1600°C.
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Titanium-bearing blast furnace slag (TBFS) is a byproduct obtained after the blast furnace smelting process [].It can be categorized into low (W (TiO2) < 5%), medium (5% < W (TiO2) < 20%), and high-titanium slag (W (TiO2) > 20%) based on TiO 2 content [2,3,4].China generates approximately 7 million tons of TBFS annually, with accumulated storage exceeding …
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Trans. Nonferrous Met. Soc. China 28(2018) 2528âˆ'2537 Appropriate titanium slag composition during smelting of vanadium titanomagnetite metallized pellets Shuai WANG, Yu-feng GUO, Tao JIANG, Feng CHEN, Fu-qiang ZHENG, Min-jun TANG, Ling-zhi YANG, Guan-zhou QIU School of Minerals Processing and Bioengineering, Central South University, …
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As the byproduct in the smelting process of vanadium titano-magnetite, titanium-bearing blast furnace slag (TBFS) can be converted to a titanyl sulfate (TiOSO4) solution containing MgSO4 and Al2 ...
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Titanium (Ti) is one of the most important metals on Earth; it is widely used in the aerospace, marine, and biomedicine fields owing to its corrosion resistance, low density, and high strength. Since the 1940s, the Kroll process has been the primary industrial method for Ti production [1], [2], [3]. Nevertheless, evident drawbacks limit its ...
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This agrees well with Mori's speculation that small quantities of Ti 2 O 3 were contained in the CaO-SiO 2-TiO 2 slag during the process of the titaniferous iron sand smelting, the electric conductivity would increase sharply owing to the semiconductive behavior of titanium oxide. This fact had great significances during the practical ...
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Electric furnace reduction smelting is a predominant method for preparing titanium-rich materials in China. [1,2,3] The essence of this method is to remove iron by selective …
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The sodium smelting of vanadium–titanium magnetite can achieve the comprehensive utilization of Fe, V, and Ti. However, the generation of alkaline slag during this process may cause damage to refractory materials. The wettability and corrosion behavior of alkaline slag on three types of refractory (MgO–C, SiC, and high alumina refractory) substrates …
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Slag viscosity is an important indicator in the ironmaking process and plays a critical role in the smooth operation of smelting. Based on viscosity experimental data, this paper proposes a prediction model for the viscosity of titanium-containing slag on the HIsmelt process using big data and artificial intelligence methods.
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The full oxygen bath smelting process does not use coke ... Appropriate titanium slag composition during smelting of vanadium titanomagnetite metallized pellets. Trans Nonferr Met Soc China, 28 (12) (2018), pp. 2528-2537, 10.1016/S1003-6326(18)64899-X. View PDF View article View in Scopus Google Scholar
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Smelting slag from mineral process and blast furnace process to vanadium titanium magnetite is a kind of precious secondary resource in which TiO2 content is higher than 20%.
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HIsmelt smelting reduction is a flexible and environmentally friendly ironmaking process that can cope with complex raw material conditions and is a feasible process for smelting VTM. However, the presence of a large amount of TiO 2 will make the slag sticky and difficult to tap. In this article, the viscosities of the slag generated in the ...
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The smelting process controls the type of titanium slag by adjusting the MgO content. Show abstract Bauxite residue, an industrial solid waste generated during alumina production, with over 80 % of bauxite residue worldwide being accumulated around alumina plants, which occupying a significant amount of land resources and posing a threat to the ...
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Titanium slag is obtained through ilmenite electric furnace smelting; its typical process flow diagram is shown in Figure 3. Generally, there are a multitude of phases in …
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which increases the demand of titanium slag since titanium slag is an important middle material for further production of titanium oxide or other titanium products. The smelting process of the ilmenite in an electric arc furnace (EAF) is a commonly used technology for producing titanium slag in the world [1]. However, this process is energy ...
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