##tihuan2##Alternatively, the ore can be directly smelted, resulting in ferrotitanium alloy and vanadium-containing slag, which can be used to recover iron, titanium, and vanadium. However, it is important to note that the concentrate also contains adverse elements, such as 4.44% SiO 2, 4.37% Al 2 O 3, and 1.2% MgO, which can impact …
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##tihuan2##Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite (VTM).
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##tihuan2##An innovative method for recovering valuable elements from vanadium-bearing titanomagnetite is proposed. This method involves two procedures: low …
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##tihuan2##The process for the separation of vanadium and iron is consisted of three main stages: leaching, cementation, and solvent extraction.
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##tihuan2##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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##tihuan2##The transformations that occur in ore grains during solid-phase carbon reduction of the metals from the iron-vanadium concentrates formed upon the beneficiation of the titanomagnetite ores from Southern Ural deposits are studied. Upon heating to 1000°C, the solid solution in titanomagnetite grains decomposes with the formation of …
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##tihuan2##addition, the mechanisms of the leaching behavior of vanadium and iron were analyzed. A novel leaching method was proposed to achieve a highly selective separation of vanadium over iron from stone ...
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##tihuan2##In this study, a cleaner process of water leaching was proposed to extract vanadium from V-bearing roasted ore with V2O5 content of 1.06 wt.%, and the main mineral compositions of the roasted ore were quartz, gypsum, misenite and munirite. The effects of water leaching parameters such as leaching temperature, leaching time, liquid …
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##tihuan2##Vanadium Resources raises South African vanadium project stake Steelpoortdrift is said to have significant vanadium deposits with a mineral resource of 680 million tonnes (mt) at an average in-situ grade of 0.70% vanadium pentoxide (V₂O₅).
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##tihuan2##The vanadium (V) and chromium (VI) was hard to separate directly due to the similar nature. In this paper, separation and recovery of vanadium (V) and chromium (VI) from a leaching solution was ...
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##tihuan2##Grinding: The raw ore enters the ball mill for grinding, and works together with the classifier to form a closed-circuit ring mill. Separation: After two stages of magnetic separators, iron ore and …
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##tihuan2##Comprehensive Processing of an Iron Concentrate of Titanomagnetite Ore by a Selective Separation and Concentration of Iron, Vanadium and Titanium by Chemical Methods September 2022 DOI: 10.18503 ...
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##tihuan2##In this study, a process of magnetizing roasting followed by low-intensity magnetic separation (MR-LMS), which is used to separate and recover iron from a low-grade carbonate-bearing iron ore ...
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##tihuan2##Solvent extraction of vanadium from a direct acid leaching solution, generated by the direct leaching of clay vanadium ore, was conducted using tertiary amine N235, and the effects of the main ...
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##tihuan2##Vanadium-titanium magnetite is mainly composed of iron (Fe), vanadium (V) and titanium (Ti) elements, which is multi-element symbiotic iron ore containing a small amount of cobalt (Co), nickel (Ni), …
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##tihuan2##Herein, we investigated the induced-leaching behavior of hematite by iron powder after ammonium sulfate roasting vanadium titanomagnetite concentrate and develop a P204-P507 synergistic extraction method for separation of vanadium(IV), …
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##tihuan2##ore assaying 34% titania to produce titania slag and pig iron, as well as iron powder (Figure 2). Hydropower costs are low, providing a significant OPEX advantage. ... vanadium and iron using hydrochloric acid at atmospheric pressure and temperatures below 95°C. Solvent extraction is then used to recover vanadium, titanium pigment and ...
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##tihuan2##The critical role of vanadium in metallurgy and the increasing commercialization of vanadium redox flow batteries have contributed to a rise in market demand for vanadium, emphasizing the need to ensure the sustainability of vanadium production. Converter vanadium slag and stone coal, generated during the smelting …
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##tihuan2##The separation principle of gold and vanadium in the carbonaceous gold ore can be described as follows: NaCl can react with vanadium to form soluble sodium vanadate and chlorine gas, and then the as-obtained chlorine gas can react with gold to form volatile gold chloride, thereby realizing the effective separation of gold and …
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##tihuan2##The separation of vanadium over iron from the acid leachates using mixed reagent D2EHPA/TBP has been widely applied, ... The crushed ore was heated to 800 °C at the rate of 10 °C/min for 60 min in a muffle furnace and then the ore was ground to minus 0.074 mm with a vibration mill, accounting for 75% of the total. ...
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##tihuan2##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 …
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##tihuan2##Metallic iron powder with an iron content of 94% is prepared by means of magnetic separation, and there are few slag fragments bearing V and Ti dispersed within iron particles.
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##tihuan2##This novel and cleaner process has potential application for processing materials with high Fe content and low content of other valuable elements (Ti, Cr, V, Nb, etc) such as rare earth iron ore ...
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##tihuan2##A new process comprising metallizing reduction, magnetic separation, and electroheat melting separation is proposed with the aim of achieving high recoveries of iron, vanadium, and titanium from ...
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##tihuan2##From the XRD diagram of vanadium slag (Fig. 1), it can be seen that the main mineral phases in vanadium slag are vanadium spinel (Mn, Fe)(Cr, V) 2 O 4, peridot(Fe, Mg) 2 SiO 4, pyroxene Ca(Fe, Mg)Si 2 O 6, and iron oxide Fe 2 O 3.Vanadium in vanadium slag mainly occurs in spinel phase, mainly in the form of (Mn, Fe)(Cr, V) 2 …
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##tihuan2##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 …
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##tihuan2##For comprehensive recovery and utilization of low grade vanadium titanium magnetite ore, detailed experimental research were carried out. When using the beneficiation process com-bined with dry discarding of tailings, stage grinding and stage separation, the qualified iron concen-trate with a yield of 13. 65%,TFe grade of 54. …
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##tihuan2##Vanadium and chromium are important rare metals, leading to a focus on high chromium vanadium slag (HCVS) as a potential raw material to extract vanadium and chromium in China. In this work, a novel method based on selective two-stage roasting–leaching was proposed to separate and extract vanadium and chromium …
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##tihuan2##The main chemical composition and mineral composition of the raw ore were obtained by ICP-AES (Table 1) and XRD (Fig. 1) analyses, respectively.As shown in Table 1, the grades of V 2 O 5 and Fe 2 O 3 are 0.97% and 4.61%, respectively. The XRD pattern of the raw ore shown in Fig. 1 indicates that the main mineral phases are quartz, …
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