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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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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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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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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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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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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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Sea sand vanadium titanomagnetite is a complex iron ore resource with titanomagnetite as the main ore phase formed by erosion. There are deposits distributed in Japan, Philippines, Indonesia, Aus-tralia, New Zealand and the coastal areas of Hainan Island in China, which are rich in reserves, easy to be mined and low in price.1–4 Sea sand ...
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DOI: 10.2138/am.2006.2192 Corpus ID: 96249747; The oxidation state of vanadium in titanomagnetite from layered basic intrusions @article{Balan2006TheOS, title={The oxidation state of vanadium in titanomagnetite from layered basic intrusions}, author={Etienne Balan and Johan P.R. de Villiers and Sigrid Griet Eeckhout and Pieter …
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These findings will support the development of the DR-EF process for the comprehensive utilization of vanadium titano- magnetite ore. 2 Experimental 2.1 Materials and methods The raw material for producing vanadium titanomagnetite metalized pellets used in this study was taken from the Panxi region of China.
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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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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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The oxidation behaviors of South Africa (SA) titanomagnetite (TTM) and its effects on the gas solid reduction in the fluidized bed were investigated on the basis of the two-stage short process of direct reduction–electric arc furnace (DR-EAF) melting separation. The results showed that the oxidation phase transformations in the high …
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Through thermodynamic smelting experiments, nonisothermal and isothermal kinetics experiments, the effects of CO2–containing gas injection on the smelting of chromia–bearing vanadiferous titanomagnetite ore were investigated. The experiments at 900 °C, 1000 °C, 1100 °C, 1200 °C, and 1300 °C, and CO2 concentration of 0, 10 …
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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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A sodium modification–direct reduction coupled process was proposed for the simultaneous extraction of V and Fe from vanadium- bearing titanomagnetite. The sodium oxidation of vanadium oxides to ...
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The experimental results were presented in two pseudo-binary sections, which represent the process of HIsmelt for the treatment of titanomagnetite ore and mixed titanomagnetite+ilmenite ore ...
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In the present work, the effect of V2O5 addition on the oxidation induration process of Hongge vanadium titanomagnetite pellet (HVTMP) was investigated by various characterisation methods.
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Abstract: An innovative method for recovering valuable elements from vanadium-bearing titanomagnetite is proposed. This method in-volves two procedures: low-temperature roasting of vanadium-bearing titanomagnetite and water leaching of roasting slag. During the roast-ing process, the reduction of iron oxides to metallic iron, the sodium ...
DetailsIn 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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These deposits include vanadiferous titanomagnetite (VTM) deposits, sandstone-hosted vanadium (with or without uranium) deposits (SSV deposits), and vanadium-rich black shales. ... these deposits have average ore grades that range from 0.1 to greater than 1 weight percent V 2 O 5. The United States has been and is currently the main producer …
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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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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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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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Vanadium titanomagnetite concentrate (VBT) is a kind of multi-metal element symbiotic compound ore, containing iron, vanadium, and titanium [].More than 85% of vanadium and 90% of titanium originate from VBT in China [2, 3].The western Liaoning area is another large deposit in China besides Panzhihua, which is …
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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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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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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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A sodium modification–direct reduction coupled process was proposed for the simultaneous extraction of V and Fe from vanadium- bearing titanomagnetite. The sodium oxidation of vanadium oxides to water-soluble sodium vanadate and the transformation of iron oxides to metallic iron were accomplished in a single-step high-temperature process. …
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Vanadium bearing slags, the solid byproducts in iron- and steel-making plants, are the principal source of vanadium production, accounting for more than 69% of total vanadium in terms ofthe raw ...
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