With 55.51% iron and 7.86% TiO 2, the ore is low-titanium beach titanomagnetite (TiO 2 < 8%) [17]. ... Therefore, the separation of titanium and iron is difficult [12], and the method of low-intensity magnetic separation was considered to remove pyroxene. Table 1.
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Titanium wires and small pieces of titanium were deoxidized to 20–60 mass ppm oxygen by use of calcium-saturated CaCl2 at a temperature of 1273 K.Trace element analysis (e.g. glow discharge mass ...
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Optimal roasting conditions for iron/slag separation were achieved with a mixture thickness of 42.5 mm, a roasting temperature of 1200°C, a residence time of 2 h, …
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Vanadium titanomagnetite (VTM) is an important mineral for developing titanium resources, but the comprehensive recovery of ilmenite separation is extremely poor, resulting in the low-efficiency utilization of titanium resources. Here, the separation of ilmenite from VTM ore is studied by combining magnetic separation and flotation technologies. In …
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Several processes for metallic titanium production that allow direct reduction of TiO 2 to commercially pure titanium were recently developed; these processes require highly pure TiO 2.Conventional upgrading processes for low-grade titanium ore, like ilmenite, cannot produce such pure TiO 2.The production cost of highly pure TiO 2, such as pigment …
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The ore is roasted under reducing conditions to selectively reduce iron. The iron is then removed by magnetic separation, and the non-magnetic material leached in hydrochloric acid. This process also enables the recovery of a titanium dioxide by-product (Zhao et al., 2014). The production of by-products such as titanium dioxide, iron metal …
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materials processing. titanium processing, the extraction of titanium from its ores and the preparation of titanium alloys or compounds for use in various products. Titanium (Ti) is …
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Titanium ore is reduced to metallic iron and soluble titanium oxide, and then dissolved in an acid solution under hydrogen gas atmosphere to obtain a solution containing titanous …
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Titanium Ore Processing and Beneficiation. To develop a flowsheet for separation of high grade titanium-rutile from ilmenite, that will meet market requirements. Rutile has a SG of 4.2, hardness 6.0 to 6.5 and is non-magnetic; while ilmenite has a SG of 4.5 to 5.0, hardness of 5.0 to 6.0, and is weakly magnetic.
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Experimental study using the conventional magnetic separation method was firstly carried out to separate iron and titanium concentrate respectively, and ultimately, after a series of conditional experiments, both iron and titanium cannot meet the market demand for qualified concentrate. ... Magnetic separation is widely used in the iron ore ...
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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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Effect of magnetic intensity on separation of vanadium, titanium and iron. In this study, magnetic separation was used to obtain high-quality vanadium concentrates from the VTM ore. The production of titanium-rich concentrates to recover titanium was also very important because the VTM ore contains high ilmenite [26, 27]. Therefore, from …
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The chlorination agents and the separation of metal chlorides were summarized. ... Thermodynamic consideration of the removal of iron from titanium ore by selective chlorination. Metall. Mater. Trans. B, 45 (4) (2014), pp. 1260-1271, 10.1007/s11663-014-0061-8. View in Scopus Google Scholar.
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As the main titanium-bearing minerals in the bauxite ore residue were titanomagnetite, kassite, and sodium tri-titanate (Fig. 2), magnetic separation process can be conducted to recover iron and titanium due to the magnetic character of titanomagnetite, and the remaining titanium could be further recovered from non …
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The S/N ratios for the extraction efficiency of thorium, uranium, titanium, iron, and lanthanum are shown in Fig. 1.According to Taguchi ' s method, a high influence on extraction or separation factor is shown by a high S/N ratio. Figure 1 indicates that Cyanex272 is the best extractant for the extractions of thorium, uranium and lanthanum. …
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The metallization ratio, iron grade, and iron recovery ratio of the concentrate in these cases all exceed 90%, suggesting that reductive Bayer bauxite residue exhibits superior beneficiation performance. Furthermore, sodium carbonate plays a crucial role in facilitating the separation of iron and titanium in the absence of CaO.
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separation to recover iron,4–7) the titanium resource is often wasted. Therefore, an effective process that can separate titanium and iron from TTM ore must be developed. Previous studies show that coal-based direct reduction fol-lowed by magnetic separation is the most effective method to achieve titanium and iron separation from TTM ore.8–15)
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Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite (VTM). The effects of reduction temperature, gas composition, reduction time, grinding fineness, …
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Separation of iron from titanium acidic solutions with tri-octylphosphine oxide (TOPO) and ctylamine (TOA) has been investigated. TOA was found to be more selective for extraction of Fe compared with TOPO from HCl concentrations >1 M. Iron could be stripped effectively from the loaded TOA in 1 M HClO 4.Parameters affecting …
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Enhancing Reduction Separation and Efficient Recovery of Iron, Vanadium, and Titanium for Ultra-High-Titanium Magnetite. Original Research Article. Published: …
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The mineral phase transformation, microstructures of reduction, and magnetic separation products were analyzed to reveal the enhanced separation mechanism of titanium and iron in beach placer.
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Titanium ore is reduced to metallic iron and soluble titanium oxide, and then dissolved in an acid solution under hydrogen gas atmosphere to obtain a solution …
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The separation of Fe, V, Cr, and Ti in the direct reduction products of South African vanadium–titanium magnetite has been successfully achieved by smelting …
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Results showed that FeS and nepheline are formed by addition of Na2SO4, thereby benefiting the migration and growth of metallic iron particles in the redox system and separation of titanium and iron.
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In this paper, magnetization roasting - low-intensity magnetic separation was performed on a pre-concentration concentrate obtained from an Australian hematite containing titanium and vanadium to realize the separation of titanium and vanadium. The results showed that an iron concentrate with TFe (total iron) grade of 58.71%, iron …
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Efficient separation of vanadium, titanium, and iron from vanadium-bearing titanomagnetite by pressurized pyrolysis of ammonium chloride-acid leaching-solvent extraction process ... This paper investigated a pellet ore production process in which vanadium was extracted from vanadium and titanium magnetite concentrates using …
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Traditional iron and titanium separation was not a good choice. ... China is rich in total reserves of iron-containing mineral resources; however, the average grade of iron ore in China is not competitive with that in Australia and Brazil [19]. At present, a relevantly large quantities iron resources are relied on the imports due to the rapid ...
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Under the condition of reduction temperature of 1050 °C, reduction time of 120 min and gas composition of P(H2)/P(H2 + CO) = 0.72, a magnetic product containing 84.5 wt.% total iron with Fe ...
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Yu et al. used a process of magnetic reduction roasting followed by magnetic separation to separate and recover iron from a low-grade carbonatebearing iron ore, and the hematite and siderite ...
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The separation and extraction of titanium, iron, and alumina in one spot can shorten the process and make full use of the electric energy. Under optimal conditions, the efficiencies of iron, titanium, and alumina were 97.6%, 93.1% and 88.5%, respectively. ... This is because CFA contains iron ore [2], mullite [9], and quartz [22], and can be ...
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