Reduction behaviors and mechanisms of vanadium titanomagnetite …
By means of isothermal oxidation and chemical analysis, great importance was attached to the parameters that made effects on the oxidation degree of vanadium, titanium-bearing magnetite pellet in ...
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Gas-based reduction of vanadium titano-magnetite …
International Journal of Minerals, Metallurgy and Materials - The reduction of vanadium titano-magnetite pellets by H2–CO at temperatures from 850 to 1050°C was investigated in this...
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Consolidation and reduction behaviour of pellets with sea sand vanadium
sea sand ore is a vanadium – titanium magnetite with a rela- tively coarse particle size, the gas di ff usion rate was faster in the early stage of the reduction reaction, which was condu-
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Oxidation behavior of low-grade vanadiferous …
Keywords Low-grade vanadiferous titanomagnetite concentrate Oxidation degree Phase transformation Micromorphology Oxidation path Pore structure 1 Introduction Vanadiferous titanomagnetite (VTM) ore is an important natural multi-mineral co-associated magnetic material ... recovery rates of iron, titanium, vanadium, and chromium were 97.9%, …
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Effect of Cr2O3 addition on the oxidation induration …
As part of a research project to develop a novel clean smelting process for the comprehensive utilization of Hongge vanadium titanomagnetite (HVTM), in this study, the effect of Cr 2 O 3 addition on the oxidation induration mechanism of HVTM pellets (HVTMPs) was investigated in detail. The results showed that the compressive strength …
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High-Efficiency Extraction of Fe, V, and Ti from Vanadium …
Vanadium-containing titanium magnetite is the main source of V and Ti in the internal market. About 75% Fe, 82% V, and 44% Ti pass into iron concentrate during ore enrichment [].Therefore, the question of how to improve comprehensive utilization of vanadium-titanium magnetite concentrate (VTMC) is of decisive importance for the …
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Non-isothermal oxidation induration mechanism of vanadium
High-Cr VTM is a vanadium titanomagnetite with special complexity in raw materials, composition, distribution, and grade [20][21][22][23][24]; therefore, it is more difficult to smelt than ...
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Kinetic study on microwave-enhanced direct reduction of titanomagnetite …
In the direct reduction process, the main phase of the titanomagnetite ore is the solid solution formed by Fe 3 O 4 and FeTiO 3 [24, 25]. It is reported that more lattice defects and higher porosity will be formed after the pre-oxidation of TC [ 26 ], indicating that the pre-oxidation can enhance the reduction process.
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A New Route of Roasting-Flotation-Leaching for the …
Ti-concentrate from altered Vanadium titanomagnetite (VTM) ore. Based on the character of the ore sample, it is recommended to recover the Ti-bearing minerals, ilmenite and anatase, as composite mineral. Pretreatment experiments indicate that the oxidation roasting (800 C) and acid washing methods increase the flotation indexes …
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Titanium-Enriched Slag Prepared by Atmospheric …
1. Introduction. The vanadium-bearing titanomagnetite (VBTM) ore deposit in the Panzhihua–Xichang region, China, is a complex ore that contains many valuable elements, including titanium (Ti), vanadium (V), iron (Fe), chromium (Cr), scandium (Sc), and gallium (Ga), and has high utilization value [1,2,3].Vanadium titanomagnetite …
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The oxidation state of vanadium in titanomagnetite from layered …
For instance, vanadium oxidation state ranges from +III to +V in terrestrial magmatic systems, which influences dramatically the partitioning of this element between minerals and melts (e.g ...
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(PDF) The Geology of Vanadium Deposits
Four main deposit types from which vanadium was historically extracted, are currently produced from, or may be recovered from in the future are: (1) vanadiferous titanomagnetite (Figure 2(a)), (2 ...
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Optimized magnetic separation for efficient recovery of V …
However, since the concentration of vanadium in its ore is low, the extraction process is energy-intensive and consumes a large volume of acid [11, 12]. Moreover, extraction by chemical separation generates a large volume of hazardous materials, such as low-pH wastewater and precipitated by-products [12, 13]. By enriching the vanadium …
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Soil microbial community variation in vanadium-enriched …
1. Introduction. Vanadium is extensively used for the traditional steel, automobile and aviation industries, and advanced vanadium redox flow batteries (Almeida et al., 2020).Vanadiferous titanomagnetite ore (VTM) is the primary source of iron (Fe), titanium (Ti), and vanadium (V) (Yang et al., 2021).The Panzhihua area of China is rich …
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Process Mineralogical Analysis of a Typical Vanadium Titano …
In this manuscript, process mineralogical analysis of a typical vanadium titano-magnetite concentrate was investigated thoroughly. The specific phase composition of VTM is 84.11% titanomagnetite, 6.52% hematite-limonite, 1.41% ilmenite, 3.87% olivine and 3.31% alumina. Iron in the VTM ore primarily exists in the form of titanomagnetite ...
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Migration Behavior of Valuable Components in Pellets with …
The migration behavior of valuable components has a certain guiding significance for exploring the oxidation consolidation mechanism of pellets. In this paper, the compressive performance, phase composition and microstructure of oxidized pellets were comparatively calculated and analyzed by XRD, OM, SEM–EDS and FactSage 8.0; …
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Influence of TiO 2 addition on the oxidation induration
The vanadium-bearing titanomagnetite (VBTM) ore deposit in the Panzhihua-Xichang region, China, is a complex ore that contains many valuable elements, including titanium (Ti), vanadium (V), iron ...
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Non-isothermal oxidation induration mechanism of vanadium
Vanadium titanomagnetite (VTM) is a type of iron ore that contains several valuable metallic elements, which are mainly iron, titanium, and vanadium. The Panxi region of China accounts for about 9.66 billion tons of VTM [1], [2], [3]. At present, VTM is mainly smelted and separated in a blast furnace, where most of the iron and part of the ...
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Oxidation behavior of low-grade vanadiferous titanomagnetite …
With respect to high efficient utilization of low-grade iron ore resource, the behavior of low-temperature "973 K to 1123 K (700 °C to 850 °C)" oxidation, on the phase transition of SA TTM ...
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Promoting low-temperature consolidation of vanadium titano-magnetite
Non-isothermal oxidation induration mechanism of vanadium titanomagnetite pellets. Ruiqi Zeng Nan-nan Wang Wei Li. Materials Science, Engineering. Advanced Powder Technology. 2023; 4. Save. Process Mineralogy of Vanadium Titanomagnetite Ore in Panzhihua, China. Fuxing Zhu Zhan-yu Ma Guanjin Gao Kehui …
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Oxidation Kinetics, Structural Changes and Element …
DOI: 10.1016/S1006-706X(16)30171-6 Corpus ID: 100034309; Oxidation Kinetics, Structural Changes and Element Migration during Oxidation Process of Vanadium-titanium Magnetite Ore
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Vanadium (V) Ore | Minerals, Formation » …
15/04/2023 Modified date: 23/04/2023. Vanadium (V) ore refers to a type of mineral deposit that contains vanadium, a chemical element with the atomic number 23 and the symbol V in the periodic table. Vanadium is a …
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(PDF) Influence and Mechanism of CaO on the Oxidation
The oxidation induration process of Hongge vanadium titanomagnetite pellets (HVTMP) with different amounts of CaO was investigated. This research forms part of an ongoing study on a novel and ...
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Resource utilization of High-Ti vanadium titanomagnetite: …
In order to achieve the goal of resource utilization of High-Ti vanadium titanomagnetite (High-Ti VTM), the high-temperature sintering characteristics of High-Ti VTM were investigated by micro ...
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The oxidation behavior of MnO2 on the surface of a shale vanadium ore …
Vanadium as an important strategic metal [1], its special properties are widely used in metallurgy, chemical, new energy, medical and other fields [2]. In China, the available vanadium resources are mainly vanadium titanomagnetite, stone coal, clay vanadium ore, vanadium shale, etc [3], [4].
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Oxidation induration process and kinetics of Hongge vanadium …
The induration process and oxidation kinetics of Hongge vanadium titanium-bearing magnetite (HVTM) pellets have been investigated by employing X-ray diffraction, scanning electron microscope, energy-dispersive spectroscopy, thermogravimetric and differential thermal analysis and thermogravimetric and differential scanning calorimetry. …
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-XRD pattern of vanadium-bearing titanomagnetite.
The main chemical composition of the raw material is shown in Table 1. The total Fe content (TFe) is 52.88 wt%, and the TiO 2, V 2 O 5 contents are 12.20 wt%, 0.561 wt%, respectively. The ...
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Extraction of titanium, vanadium and iron from titanomagnetite …
A significant titanomagnetite deposit is located at Pipestone Lake in northern Manitoba [4]. The ore body contains up to 60 % magnetite, 31% ilmenite and 0.66 % vanadium which is associated with the magnetite. The rest of the ore consists mainly of oxides of silicon, magnesium and aluminum which total up to seven percent.
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Efficient separation of vanadium, titanium, and iron from vanadium …
1. Introduction. The vanadium–bearing titanomagnetite (VBT) is a strategic and complex iron ore, which containing valuable metals of vanadium, titanium, and iron used as constituents of several alloys, whitepigments, and steel [1], [2], [3].In China, the gross reserve of titanium in VBT ore is estimated to be about 1.18 million tons, …
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[PDF] Characterization and Pre-Concentration of Low-Grade Vanadium …
A large number of unexploited low-grade vanadium-titanium magnetite deposits have been found in the Chao-yang area of China in recent years. The reserves are estimated at more than 20 billion tons. A mineralogical study of raw sample indicated that it was a typical low-grade vanadium-titanium magnetite ore with weathering. Most of …
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