However, little attention has been paid to vanadium-titanium-magnetite (VTM), which is a magnetite containing iron and titanium as its main elements (Lai et al. 2018). Hence, applications of VTM can offer an innovative research opportunity due to their superior performance in adsorption (and catalytic degradation) of pollutants ( Liuet al. 2016 ).
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) magnetite deposits to produce vanadium, titanium pigment and iron oxides using hydrometallurgical process routes. Rio Tinto QIT operations in Canada at Sorel where titaniferous magnetite ore is mined produce concentrates that are smelted to produce pig iron and titania slag.
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Vanadium ore mainly includes vanadium-titanium magnetite and weakly magnetic iron ore containing vanadium and titanium, such as vanadium-titanium hematite, vanadium-titanium limonite, vanadium-titanium hematite-limonite; the former of which is the main source of vanadium, with more than 80% of the world annual output of vanadium coming from ...
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In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate. Meanwhile, the mechanisms of potassium salt roasting and acid leaching kinetics were investigated. The results indicate that potassium salt roasting additives are more efficient than sodium and calcium salt and that K2SO4 works best. Under …
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The magnetite and ilmenite concentrates can be smelted separately to recover vanadium and titanium in their respective slags. Poor TiO2 recovery in the ilmenite concentrate, however, makes this process route undesirable.
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Vanadium-titanium magnetite has coarse particle size, small specific surface area, poor surface hydrophilicity and low strength when being made into pellets. However, vanadium-titanium magnetite pe...
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At the same time, the efficient utilization of valuable components such as iron, vanadium, titanium, and chromium in vanadium-titanium magnetite can also alleviate the problems caused by mineral ...
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The deep exploration potential of basic-ultrabasic rock masses associated with Panzhihua-type vanadium-titanium magnetite (VTM) deposits are closely tied to the occurrence of deep-seated rock bodies. In this study, we utilized newly acquired 1:50000 scale aeromagnetic data from the Panxi region to perform a 3-D magnetization inversion using an improved regularized focusing …
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Keywords: vanadium titanium magnetite; titanium enrichment; alkalinity; melting temperature; carbon content 1. Introduction Vanadium-titanium magnetite is a complex symbiotic iron ore resource composed of iron, vanadium, titanium and other metals, which is one of the most important iron ore resources in China [1–4].
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Comprehensive Utilization of Vanadium–Titanium Magnetite Deposits in China Has Come to a New Level. HAO Ziguo, HAO Ziguo. Chinese Academy of Geological Sciences. Editorial Office of Acta Geological Sinica Geological Society of China. Search for more papers by this author. FEI Hongcai,
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Vanadium-titanium magnetite is a complex symbiotic iron ore resource composed of iron, vanadium, titanium and other metals, which is one of the most important iron ore resources in …
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Vanadium does not form concentrated deposits like other metals such as copper, nickel or zinc. It is widely dispersed in the Earth's crust, with V 3+ replacing Fe 3+ or Al 3+ in a number of minerals. Vanadium as V 3+ can substitute for Fe 3+ in magnetite (Wenk and Bulakh, 2004); vanadium(III) and iron(III) ions have near identical ionic radii in octahedral sites of …
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Blast furnace process is the main approach for utilizing vanadium–titanium magnetite (VTM) and VTM pellet is an important burden due to its excellent performance. In this paper, the softening–melting behavior of VTM pellets was investigated. The softening, melting temperature interval and permeability index were obtained as 75 °C, 181 °C and 507 kPa·°C, …
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The slag ing caused by Ti(C,N) is the main limitation of smelting vanadium–titanium magnetite by blast furnace. COREX, with unique pure oxygen injection that avoids the formation of Ti(C,N), has a huge potential advantage for the smelting of vanadium–titanium magnetite. In the present study, the detailed characterization was …
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Vanadium titanomagnetite (VTM) is a valuable multi-element symbiotic ore mainly composed of iron, vanadium, and titanium, as well as small amounts of chromium, nickel and cobalt [1, 2, 3].
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Vanadium-titanium magnetite is a significant source of iron, vanadium and titanium, accompanied by a variety of valuable elements, which is internationally recognized as a strategic mineral [1, 2].Currently, the comprehensive utilization of vanadium-titanium magnetite mainly includes blast furnace process and non-blast furnace process [3, 4].In the smelting process, …
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Vanadium-titanium magnetite is a complex symbiotic iron ore resource composed of iron, vanadium, titanium and other metals, which is one of the most important iron ore resources in China [1, 2, 3, 4].
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Vanadium-titanium magnetite (VTM) ore is the main source of V, Ti, and Fe in nature with a high comprehensive utilization value [1,2,3]. China is one of the countries which has the richest resources of VTM in the world. At present, the mainstream route for VTM's comprehensive utilization is the transition from a blast furnace to a basic ...
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Vanadium-titanium magnetite (V-Ti magnetite), one kind of paragenetic ore composed of iron, vanadium, and titanium, etc., is an important mineral resource with a high commercial value. The ore is extensively …
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The key to smelting vanadium–titanium magnetite is to prevent the over-reduction of TiO 2 and reduces the formation of TiC or Ti(C,N), which are the main driving force that causes slag thickening and ing, and further deteriorates the bed permeability.
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The burgeoning accumulation of vanadium-titanium magnetite tailings (VTMT) presents a dual challenge of environmental hazard and loss of valuable metal resources. This review arrives at a crucial juncture in global efforts towards a circular economy, focusing on innovative and effective metal recovery technologies. We explore the forefront of recycling …
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A large amount of vanadium-titanium (V-Ti) magnetite tailings are generated in the iron (Fe) concentrate recovery process in this mining area (Li et al., 2020a). These tailings from large-scale mining activities are usually dumped in dams and become one of the main sources of potential V contamination due to a mass of V still present in the ...
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Vanadium titanium magnetite (VTM) is a multi-metal composite of metal minerals with extensive utilization value because it is a principal carrier of iron, vanadium, and titanium [1, 2]. VTM exhibits a dense structure and complex interactions; thus, directly extracting valuable metals from it is challenging. Recently, gas-based direct reduction ...
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South African vanadium–titanium magnetite is a complex mineral resource rich in iron, vanadium, titanium, and chromium [1,2,3].Its ore composition is composed of more than 20 elements [4,5,6].It is the most complex ore of its type in the world and contains more than 10 valuable elements, so it has a very important integrated utilization value.
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Vanadium titanomagnetite (VTM) is a valuable multi-element symbiotic ore mainly composed of iron, vanadium, and titanium, as well as small amounts of chromium, nickel and cobalt [1,2,3].The global resource reserves of the VTM ore are extremely rich (over 40 billion tons) and are mainly distributed in Russia, South Africa, China, the United States, Canada, Norway, …
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Vanadium is an important strategic metal with high application value. In this paper, various common vanadium extraction methods of vanadium titanium magnetite are systematically summarized, the advantages and disadvantages of various methods are fully analyzed and compared, and the application status of various vanadium extraction methods is described.
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Vanadium recovery was dependent on maximizing magnetite and ilmenite recovery. Ilmenite, which is the main source for titanium, existed in the stripes within magnetite; it got …
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This paper summarizes the distribution of vanadium titanium magnetite in the world and its comprehensive utilization progress. vanadium titanium magnetite is a composite ore of iron, …
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The sodium roasting–water leaching process for vanadium–titanium magnetite (VTM) concentrate faces challenges such as low vanadium recovery, excessive addition of sodium salt, and high alkali content in the tailings. Therefore, reducing the presence of toxic elements like vanadium and alkali metal sodium in the extraction tailings is crucial for the …
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Tang et al. [11] found that the mineral phases of vanadium titanomagnetite in western Liaoning were mainly magnetite, titanomagnetite and vanadium magnetite, the magnetite and titanium magnetite ...
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As a multi-metallic iron-based ore, vanadium-titanium (V-Ti) magnetite has huge reserves in China, with a mineable grade of 9.83 billion tons (Li et al., 2018).A large amount of V-Ti magnetite tailings have been generated in the selection process of Fe concentrate, with an accumulated storage of about 570 million tons in the Panzhihua area of southwestern China …
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Vanadium titanium magnetite, as the main raw material for vanadium extraction, is firstly smelted in the blast furnace to obtain vanadium-bearing molten iron. Then, vanadium slag is obtained by the oxidation of vanadium-bearing molten iron in a converter furnace. Vanadium extraction tailings are generated from the vanadium extraction process ...
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In order to realize the comprehensive and efficient recovery of vanadium–titanium magnetite, a mass action concentration calculation model for direct melting reduction was established, and the mechanisms and limiting factors for the separation and enrichment between Fe, V, and Ti were also studied through molten vortex direct reduction experiments. The mass …
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