Global DRI production has increased from 72 Mtpa in 2010 to 114 Mtpa in 2021 [5]. Production is expected to further increase to 272 Mtpa by 2050, of which >50% of the increase would be attributed to carbon-free, hydrogen-based process route, assuming the
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DOI: 10.1007/s42243-023-01156-4 Corpus ID: 266953245; Enrichment and reconfiguration of titanium-bearing phase in vortex smelting reduction process of vanadium–titanium magnetite
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— Fluxless smelting in a direct-current open-arc furnace is proposed as an opportunity to improve iron and vanadium recovery and potentially unlock the titanium as …
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— The crystallization behaviors of anosovite and silicate crystals in the high CaO and MgO titanium slag were studied to insure smooth operation of the smelting process and the efficient separation ...
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— The non-blast furnace process, capable of achieving complete smelting of vanadium titanomagnetite with a high titanium grade in the slag, is also conducive to titanium recycling. It is regarded as an effective solution for the comprehensive recovery of iron, vanadium, and titanium from vanadium titanomagnetite [ 10 ].
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— Titanium-bearing magnetite ore is generically defined as magnetite with > 1% titanium dioxide (TiO2) and is usually vanadium-bearing. The iron and titanium occur as a mixture of magnetite (Fe3O4 ...
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— The process of titanium slag production is the process of smelting ilmenite concentrate in arc ore-thermal furnaces (OTF) in a semi-closed mode with the use of a …
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— The control temperature for smelting VTM using the HIsmelt process is 1425°C, with a reduction time of 20–30 min, which is conducive to the transfer of vanadium to the molten iron and the enrichment of titanium in the slag. To ensure vanadium and titanium are efficiently utilized, a basicity control of 0.8 is appropriate.
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The titanium-rich slags produced by ilmenite smelting are unusual in several respects, including their low viscosity, high electrical conductivity, propensity to solidify predominantly as one phase (pseudobrookite), and reactivity (with oxidizers) in the liquid and solidified form. The low viscosity is related to the unexpectedly "basic" behavior of Ti4+; the high …
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— Distribution behavior of vanadium and titanium between hot metal and high titanium slag relevant to HIsmelt smelting condition. J. Mater. Res. Technol. (2022) ... Commercial test of hismelt process in smelting vanadium-titanium magnetite. Ironmaking (2022) Y.-X. Liu et ... machine learning and evolutionary algorithms for parameter …
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— During the slag-tapping process, crystallization will cause the slag viscosity to rise sharply, which is not conducive to stable slag-tapping operation, especially for smelting high-titanium slag.
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— The present study demonstrates the dependence of viscosity on chemical composition and temperature of high-titania slag, a very important raw material for producing titanium dioxide. The results indicated that completely molten high-titania slag exhibits a viscosity of less than 1 dPa s with negligible dependence on temperature. …
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— Figure.2: The new titaniferous slag smelting process. In this new process, the vanadium titanium magnetites are directly reduct by rotary hearth furnace, then the DRI …
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— High-titanium blast furnace slag (TBFS) is a kind of slag produced during the smelting of iron using vanadium–titanium magnetite ore, including various compositions, …
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The FeO in slag also suppressed the side reactions (i.e., carbonization of titanium and iron, reduction of silicon) in smelting process, which improved slag fluidity and iron nugget purity. This technique also provides a new approach for the utilization of V-bearing titanomagnetite, ilmenite, and other similar resources.
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— A high titania slag that is used as a feedstock for TiO2 manufacturing is obtained by ilmenite smelting (FeO.TiO2). The composition of the slag obtained by smelting is dependent on the composition of the mineral used for slag preparation, i.e., ilmenite in our study. At the laboratory scale, ilmenite slags are mostly obtained by using ilmenite as …
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— The production of raw titanium metal relies on natural and man-made feed materials, including natural rutile, titanium dioxide slags of different grades ("chloride slag," UGS, and "sulfate slag"), and synthetic rutile. Natural rutile was the feedstock of choice at the early years of the Kroll process, but nowadays it comes in limited ...
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— In response to the problem of rich vanadium–titanium magnetite (VTM) resources in China contrasting with low blast furnace utilization, a HIsmelt process for smelting VTM is proposed. The influence of the process parameters on smelting reduction is analysed under laboratory conditions by simulating smelting reduction. The results …
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— The smelting reduction process of the ilmenite in an electric arc furnace (EAF) is a commonly used technology for producing titanium slag in the world. It has particular significance to analyze the velocity–temperature–electromagnetics multi-physical field in an EAF for improving its productivity and reducing energy consumption. A …
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— A high titania slag that is used as a feedstock for TiO2 manufacturing is obtained by ilmenite smelting (FeO.TiO2). The composition of the slag obtained by …
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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 …
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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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— 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 …
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Granulation is a cost-effective way to process slag for further usage. Because the granulation process uses water recycled from other water circuits in the plant, fresh water intake is minimized. Outotec Furnace Lining Monitoring System Specifically designed for monitoring the condition of smelting furnace liners, this system enables ...
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and subsequent smelting in electric arc furnace are the dominant process for titanium dioxide production worldwide.[1] During the smelting process, the viscosity influences the taping period, slag-iron separation, and energy consumption. Figure 1 illustrates previous reports on Ti-bearing blast furnace slag.[2–7] However,
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slag cleaning, and certain ironmaking processes (vanadium-titanium-magnetite and ilmenite ores). Hatch has been designing and optimizing ESFs in both non-ferrous and …
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— Relatively speaking, the reduction smelting technology is relatively mature technology and suit large scale production, but it has high power consumption than per ton high titanium slag (including TiO 2 72–92%). Power consumption is about 2200–3500 kW-h and 80 kg graphite electrode [].Reduction smelting dislodge not iron impurity ability is not …
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— Hot Products Used for titanium slag smelting process hpc cone crusher cs cone crusher lm vertical mill scm ultrafine mill pew jaw crusher mtw milling machine titanium slag smelting process – Iron Ore Processing …
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— Abstract Titanium slag in this study was produced by subjecting titanomagnetite concentrate to direct reduction-electric furnace smelting. Processing mineralogy and mineral phase reconstruction behavior at high temperature and slow cooling treatment were examined by chemical analysis, X-ray diffraction (XRD), optical …
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— The titanium-rich slags produced by ilmenite smelting are unusual in several respects, including their low viscosity, high electrical conductivity, propensity to solidify predominantly as one phase (pseudobrookite), and reactivity (with oxidizers) in the liquid and solidified form. The low viscosity is related to the unexpectedly "basic" behavior of …
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