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Refining a metal can be accomplished by electrolysis or zone refining. Certain ores such as those of copper and titanium require special treatment before they can be …
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Typical composition of titanium-iron oxide minerals on the FeO–Fe 2 O 3 –TiO 2 diagram (small dots), and typical composition ranges of titanium ores and concentrates (shadowed areas). In today's industrial practice, natural rutile and probably high-grade leucoxene can be used (as ore concentrates) for the direct production of raw …
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"As part of a U.S. Bureau of Mines program to develop a more continuous titanium metal extraction process that uses domestic resources, a study was made to determine the extraction of titanium (Ti) and iron (Fe) from New York rock ilmenite using fluosilicic acid (H2SiF6 ). The effects of leach temperature, acid concentration, and particle size ...
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Extraction from titanomagnetite deposits 163 Fig.2 0.3 =e o.~, I ! 0.1 I I 0 r ~ . 10 2O Iw | .30 40 FeO Content in the Slag, wt. % Effect of FeO concentration in the slag on the vanadium concentration in the iron Fig.3 100 - - -- DE 80 I I I 10 20 30 FeO Content in the Slag, wt. % Fiffect of FeO concentration in the slag on the vanadium ...
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The iron is thus selectively chlorinated yielding FeCl 2 (g), while TiO 2 remains in the bed. Ferric chloride is condensed and further reacted with oxygen in another fluidized bed at 300 o-350 o C to produce Fe 2 O 2. Titanium extraction- The reactor residue which is essentially pure TiO 2 can be used to extract titanium.
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The extraction efficiencies of iron and titanium were 97.6% and 93.1%, respectively, under optimal conditions of 6500 A/m 2, 0.02 M Fe 3+, and 15 h electrolysis time. The current efficiency of alumina was 88.5% under optimal conditions of 500 A/m 2, 0.1 M, and 2 h electrolysis time.
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Titanium is a highly corrosion-resistant metal with great tensile strength. It is ninth in abundance for elements in the earth's crust. It has a relatively low density (about …
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Fraction of Ilmenite ore dissolved ( α ) versus time (min) at different HCl concentrations. Experimental conditions: [HCl] = 0.1-4.0M; Temperature = 55 0 C; Solid: liquid ratio:
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Extraction processes for the production of aluminum, titanium, iron, magnesium, and oxygen and nonterrestrial sources The suitability of existing terrestrial extractive metallurgical processes for the production of Al, Ti, Fe, Mg, and O2 from nonterrestrial resources is examined from both thermodynamic and kinetic points of view. …
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Disposal of slags from alloy steelmaking is a serious problem as the toxic metals in the slag such as chromium and vanadium can be leached out. Recovery of the valuable metals needs an effective, economically viable method with a minimum number of unit processes. In the present work, a novel process for simultaneous recovery of iron, …
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The effect of temperature on titanium and iron leaching has been studied in the range of 110–150 °C. Leaching of iron was found to increase with increasing temperature up to 140 °C and levelled off thereafter. A maximum Fe extraction of 76% was achieved. However, for titanium the percentage extracted decreased with increasing …
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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 a soft, ductile, silvery gray metal with a melting point of …
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Then, iron(II) in titanium dioxide waste acid is oxidized by H 2O 2 and is preferentially precipitated with phosphoric ac id to form iron(III) phosphate. After the required reaction
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of titanium, scandium, and iron from acidic wastewater and red gypsum utilization. The recovery eciency of titanium in acidic wastewater was 97.59% under the molar ratio of titanium dioxide to phosphoric acid of 1:2.2, the reaction temperature of 85 °C, and the reaction time of 45 min. The scandium in the ltrate after the recovery of titanium ...
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Table 1 presents the chemical compositions of TET, showing that TET is predominantly composed of iron (Fe) and contains a small fraction of titanium (Ti) that has not been fully extracted during the titanium extraction process. The content of other impurity elements, such as Mg, Al, Ca, and silicon (Si), is shallow, indicating that TET could be used as a …
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The results demonstrate that titanium(IV) and iron(III) are extracted in xylene as: where HX refers to the 3‐phenyl‐4‐acyl‐5‐isoxazolones and Kex,Ti(IV) and Kex,Fe(III) denotes the ...
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Efficient separation of vanadium, titanium, and iron from vanadium-bearing titanomagnetite by pressurized pyrolysis of ammonium chloride-acid leaching-solvent …
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According to the extraction results in Table 4, the acidic extractants not only have a high E% (>98.5%) for titanium but also only co-extract chromium and iron. Unfortunately, the titanium extracted by the acidic extractants could hardly be stripped when 6 mol L −1 and 1 mol L −1 HCl solutions are used as the stripping agents, …
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The main conclusions based on the results obtained in this study on Ti and Fe extraction from coarse anatase concentrate were: (1) Anatase concentrate, containing 35.63% TiO 2, 15.22% Fe 2 O 3, 10.68% Al 2 O 3, and 13.18% SiO 2, was obtained from a kaolinite-type Ti ore dressing plant using flotation. The original minerals in the anatase ...
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The concentrations of iron, titanium, and aluminum ions were tested using an inductively coupled plasma spectrometer (ICP, Leeman Prodigy XP, USA). An electrochemical workstation (Zahner PP211, Germany) was used to perform cyclic voltammetry (CV) tests. Differential scanning calorimetry analyses (DSC, Q600 SDT, …
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Titanium extraction. The overall process. Titanium is extracted from its ore, rutile - TiO 2. It is first converted into titanium (IV) chloride, which is then reduced to titanium using …
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The cetyltrimethylammonium bromide-titanium dioxide coated iron-aluminium mixed metal hydroxide (Fe-Al MMH@TiO 2-CTAB) exhibited excellent extraction performance toward bisphenols and was selected as the sorbent for development of magnetic solid phase extraction (MSPE) method. The entire MSPE process was …
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The recovery rate of titanium tetrachloride is more than 99%, and the moisture content of solid particles is less than 1% ( Weichun et al., 2022 ). 3.2. Recovery of secondary resources in the production of titanium ingot. The average utilization rate of titanium is only 25%. The rest, about 75%, turn into waste titanium.
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company selling the new, cheaper titanium and explain why it is cheaper now, what its properties are and what it could be used for. Answers Titanium 1. Iron is extracted from its ore by heating the ore with carbon. 2. Titanium cannot be extracted in this way because it is more reactive than carbon so would not be displaced by it.
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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 a soft, ductile, …
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The results showed that the effective selective separation of vanadium, iron and titanium could be obtained in which 97.39% V and 88.62% Fe were dissolved into the solution and over 91.76% Ti was ...
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The vanadium content in iron-titanium ore, aluminium ore, uranium ore and ash from fossil fuel combustion has a potential of about 3.5 million ton vanadium per year at an extraction rate of 3.3%/year, if can be made technically feasible. Vanadium is not a scarce metal, resource access and industrial ability are the limiting factors. ...
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Summary. Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into purer form. The field of extractive metallurgy encompasses many specialty sub-disciplines, including mineral processing, hydrometallurgy, pyrometallurgy, and electrometallurgy.
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In this study, we investigated coarse anatase concentrate composed of 35.63% TiO 2, 15.22% Fe 2 O 3, 10.68% Al 2 O 3, and 13.18% SiO 2, containing mainly anatase, kaolinite, hematite, and ...
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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 …
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The crystal presents an octahedral structure alternating and coordinated with iron and titanium layers [22,23]. The Tellnes (Norway) ... have developed a combustion synthesis route for single-phase titanium-based compounds (e.g., FeTi, TiC, TiB 2, and TiFeSi 2) ... Traction modulus × 10 3 (MPa) 101: Modulus of elasticity × 10 3 (MPa) 103:
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2.1 Materials. The feed solution from leaching vanadium-bearing titanomagnetite was employed by my laboratory, which revealed that the iron powder could reduce vanadium(V) to V(IV) and Fe 3+ to Fe 2+ (ORP - 15.4 mV) [].The concentration of the feed solution is listed in Table 1.Table 1 presents that the concentrations of …
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The iron in titanium dioxide waste acid is mainly in the form of ferrous iron. The pH value is adjusted by adding ammonia water, and a phosphoric acid solution with a molar ratio of impurities such as aluminum, magnesium, vanadium, calcium, and manganese is added to it. The temperature is set at 30 °C, the stirring speed is set at …
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In this study, sodium hydroxide was used as an alkali reagent in roasting spent selective catalytic reduction (SCR) catalysts for titanium extraction. The thermodynamic analysis of the roasting process is discussed in terms of process design. The effects of various roasting parameters, such as the mass ratio of NaOH-to-SCR, …
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Scandium concentrate and titanium dioxide wastewater (TDWW) all belong to waste, especially TDWW belongs to hazardous waste, it is urgent to find a more efficient and safer treatment method to deal with them, and both waste acid and waste ore contain scandium. The use of waste acid as a leaching agent can achieve the synergistic …
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Titanium is extracted as TiCl 4, which is then returned to the Kroll process. The iron chloride generated during the chlorination process in the Kroll process can be …
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