Over recent years, a lot of work has been undertaken to process lower grade titaniferous (8-16% TiO 2) magnetite deposits to produce vanadium, titanium pigment and iron oxides using …
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In this study, an efficient utilization of vanadium titanomagnetite concentrate was systemically investigated through potassium pyrosulfate (K 2 S 2 O 7) synergized with …
How to efficiently separate or enrich titanium from vanadium-titanium magnetite is the premise for its effective utilization. At present, there are mainly two forms of the separation of raw ore and …
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].Titanium, as an indispensable metal raw material for the modern industry and advanced science and technology, is mostly derived from the vanadium-titanium …
Keywords Vanadium–titanium magnetite · Smelting separation · Electric furnace smelting · Ecient utilization of iron ore Introduction South African vanadium–titanium magnetite is a complex mineral resource rich in iron, vanadium, titanium, and chro-mium [1–3]. Its ore composition is composed of more than 20 elements [4–6].
Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite (VTM). The …
Vanadium and titanium magnetite (V–Ti) ore has a very high comprehensive utilization value due to its high-content vanadium, titanium, iron, etc. In addition, V–Ti ore as a major source of vanadium is found in various countries, such as Australia, China, Russia, and South Africa (Moskalyk and Alfantazi, 2003, Deng et al., 2012, Yu, 2004).
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,, .In China, the gross reserve of titanium in VBT ore is estimated to be about 1.18 million tons, accounting for 93% of China's total ...
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In this work, diboron xide and calcium fluoride are applied as composite additives to explore a process suitable for processing low-grade, high-vanadium, ultra-high …
The dumping of a large amount of steel slag not only wastes metal resources, but pollutes the ecological environment. In this study, a method for recovery of vanadium, titanium, iron, magnesium, and synthesizing anhydrite from steel slag is proposed. The leaching efficiency of V, Ti, Fe, and Mg was 99.42%, 99.36%, 99.89%, and 99.95%, respectively, under a H2SO4 …
The purpose of this research is to study the material composition of the Tebinbulak ore and to develop a technology for extracting iron, vanadium and titanium. Titanomagnetites are a type of ore ...
Zhao Longsheng et al. used the rotary kiln pre-reduction-electric furnace method to treat vanadium-titanium magnetite, separated iron, vanadium and titanium efficiently, and enriched titanium into slag efficiently [24,25,26]. It can be observed that, whether it is the separation of raw ore or the use of metallurgical processes, there are ...
The chemical composition, occurrence state of elements, mineral composition, dissemination relationship and size distribution of the vanadium titanium magnetite ore in Chaoyang were analyzed ...
Panxi Diqu refers to China's Sichuan-Xichang Region.Climbing western vanadium titano-magnetite is the famous super-huge vanadium of China, titanium, iron mineral intergrowth resource, titanium, vanadium, iron are the chief value element, mineral resources are not only of a great variety, (96% concentrates on Panzhihua, Baima, red lattice, four large mining areas, …
Vanadium and titanium magnetite ores are being smelted in a blast furnace, and the resulting iron liquid is refined in a converter to produce vanadium slag [1], [2].The vanadium slag undergoes sodium roasting and water leaching to produce an extracted vanadium tailing [3], [4].The total amount of extracted vanadium tailings in China exceeds 0.6 million tons per year [5].
Effect of iron powder dosage on the leaching rates of vanadium, titanium and iron was shown in Fig. 4. It can be seen from Fig. 4 that when the dosage of iron powder was 0, that is, under direct acid leaching conditions, the leaching rates of vanadium, titanium and iron were 96.1%, 9.17% and 80.46%, respectively. When the dosage of iron powder ...
Vanadium-titanium magnetite ores, as an abundant resource of iron, are always associated with some non-ferrous metals such as cobalt, nickel and copper [12], [13], [14].In the beneficiation process of titanomagnetite and ilmenite, a large number of cobalt-bearing sulfide tailings are obtained in the desulfurization stage [9].Cobalt-bearing sulfide tailings are important …
A novel process featuring pressurized pyrolysis of ammonium chloride-acid leaching-solvent extraction was carried out to separate vanadium, titanium and iron from vanadium-bearing titanomagnetite ...
DOI: 10.1177/030607 Corpus ID: 273734410; Experimental study on parameters optimisation of adding vanadium-titanium magnetite to iron ore pellet @article{Kou2024ExperimentalSO, title={Experimental study on parameters optimisation of adding vanadium-titanium magnetite to iron ore pellet}, author={Ming-yin Kou and Pengfei Ji …
Materials. Table I shows the chemical composition of the ultra-high-titanium vanadium–titanium magnetite concentrate (<75 μm) used in the experiment. The data clearly reflect the mine's low-iron, high-vanadium, and ultra-high titanium characteristics. The X-ray diffraction (XRD) pattern of the raw ore in Figure 1 shows that the phases of the concentrate …
Abstract Vanadium titanomagnetite (VTM) is a complex polymetallic symbiotic mineral dominated by iron, titanium, and vanadium. Iron extraction from VTM is an issue for the utilization of Vanadium titanomagnetite concentrate. In this work, flotation method combined with magnetic sorting was proposed to separate and recover the iron resources from VTM. The …
Due to the low efficiency and high energy consumption of coal-based reduction, gas-based reduction has been fully developed [2, 12].The thermodynamic analysis on gas - based reduction of vanadium‑titanium magnetite indicates that the vanadium‑titanium magnetite is more difficult to be reduced than ordinary iron ore, and the hydrogen-rich reducing gas was …
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 …
The iron in vanadium titanium magnetite enters the molten iron through the ironmaking process, while the vanadium in the ore is selectively reduced by converter blowing to obtain vanadium slag. Vanadium slag can be extracted by sodium roasting, calcium roasting, sub-molten salt roasting, and salt-free roasting methods.
In this study, an efficient utilization of vanadium titanomagnetite concentrate was systemically investigated through potassium pyrosulfate (K2S2O7) synergized with ammonium sulfate ((NH4)2SO4) cascade roasting to separate and recover vanadium, iron, and titanium. The result shows that 95.87% of vanadium and 80.13% of iron could be extracted, while that of …
A novel process featuring pressurized pyrolysis of ammonium chloride-acid leaching-solvent extraction was carried out to separate vanadium, titanium, and iron from …
These findings will support the development of the DR-EF process for the comprehensive utilization of vanadium titano- magnetite ore. ... WANG Da-guang. Component distribution between carbon saturation molten iron and molten slag [J]. Iron Steel Vanadium Titanium, 1991, 12: 1âˆ'4. (in Chinese) [27] BALE C W, BÉLISLE E, CHARTRAND P ...