High-Efficiency Extraction of Fe, V, and Ti from …
Vanadium-containing titanium magnetite is the main source of V and Ti in the internal market. About 75% Fe, 82% V, and 44% Ti pass into iron concentrate during ore …
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Theoretical Modeling and Experimental Evaluation of …
Vanadium titano-magnetite (VTM) provides 88% of the world's vanadium [7, 8]. Of these, 14% comes directly from VTM, and 74% comes from vanadium slag produced during steelmaking . The direct extraction of vanadium from VTM adopts a sodium salt roasting water leaching process . It is applied by enterprises in South Africa and Brazil .
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Promoting low-temperature consolidation of vanadium titano-magnetite …
1. Introduction. Vanadium titano-magnetite (VTM) is a typical multi-metal composite ore resource rich in iron, titanium, and vanadium. It is widely distributed in China, Russia, Indonesia, New Zealand, and other regions [1].The vanadium contained in VTM has extensive applications in aerospace and mechanical manufacturing, while titanium, due …
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HIGH-EFFICIENCY EXTRACTION OF Fe, V, AND Ti FROM …
TITANO-MAGNETITE CONCENTRATE BASED ON ACTIVATED REDUCTION Zhang Jun,1 Wang Feng,2 Qi Yuan-hong,3 Yan Din-liu,4 and Zhao Hai-quan5 UDC 669.292.3 Methods of chemical analysis, XRD, and pH monitoring are adopted in order to study wet extraction of ... Metallic iron powder with an iron content of 94% is prepared by means …
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The extraction of vanadium from titanomagnetites and other sources
The mineral coulsonite (FeV 2 O 4) is often associated with magnetite (Radtke, 1962) and forms a series with magnetite and chromite, FeCr 2 O 4 (Reznitsky et al., 2005). Ilmenite is also known to host vanadium (Xu et al., 2017). Hence, iron and titanium deposits are a major source of vanadium (Gupta and Krishnamurthy, 1992, Dill, …
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Reduction kinetics of oxidized vanadium titano-magnetite pellets …
Vanadium titano-magnetite concentrate (<0.074 mm and its chemical composition can be seen in Table S1) was thoroughly mixed with 2 wt% binder (bentonite, shown as Table S2) and 8 wt% water and pelletized to ϕ10-12 mm in a disc pelletizer. ... A novel process of reverse flotation-hydrogen reduction for preparation of high-purity iron …
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High-Efficiency Smelting Separation of Vanadium–Titanium Magnetite …
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 …
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Softening and melting properties of different burden …
Now the process of blast furnace is the main operating means for melting vanadium titano-magnetite to separate iron, vanadium and titanium. Actually, the cohesive zone was identified as a dominant factor for blast furnace operation according to subsequent studies (Leimalm, 2010, Zuo, 2000). The softening and melting of iron …
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Kinetics of Reduction of Titano-magnetite Powder by H2
Reduction of titano-magnetite powder containing 56.9 mass% of iron and 9.01 mass% of TiO2 with H2-Ar gas mixtures was investigated in isothermal experiments using thermo-gravimetric analyzer (TGA ...
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Metalizing reduction and magnetic separation of …
Keywords: magnetite; hot briquetting; ore reduction; magnetic separation 1. Introduction Vanadium titano-magnetite (VTM) owes its extremely high comprehensive utilization value due to abundantly as-sociating valuable elements (i.e., iron, vanadium, and tita-nium). The reserve of VTM resources is greater than 10 bil-
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Investigation of Vanadium Titanomagnetite Concentrate …
Vanadium titanomagnetite is an important source of vanadium and titanium throughout the whole world. During enrichment about 82 wt.% of vanadium, 54 wt.% titanium, and 75 wt.% of iron are transferred into iron concentrate [1, 2].Currently vanadium titanomagnetite concentrate (VTMC) is used as a charge in blast furnace (BF) for …
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Reduction Kinetics of Vanadium Titano-Magnetite Carbon Composite
Key words : carbon composite pellet; reduction kinetic; catalyst; vanadium titano-magnetite Vanadium titano-magnetite is a kind of complex iron ore which contains various valuable metal ele ments such as iron, vanadium, titanium, etc. This magnetite is mainly distributed in the area of Panxi, Chengde and Maanshan in China. Among the …
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Titaniferous magnetites as a source of vanadium titanium …
This paper looks at the methods used and various process routes being considered for potential new titaniferous magnetite projects. CITATION:Connelly, D, 2019. …
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Microwave-assisted reduction roasting—magnetic separation studies …
At respective optimum conditions, the titano-magnetite ore (O1) could yield an iron concentrate of 62.57% Fe grade and 60.01% Fe recovery, while the goethitic ore (O2) could be upgraded to a concentrate of 64.4% Fe grade and 33.3% Fe recovery. Compared with the goethitic ore, the titano-magnetite ore responded better to MW …
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Titanomagnetite
Titanomagnetites are common magnetic minerals in igneous and metamorphic rocks. Titanomagnetites (Fe3 −x Ti x O 4, 0 ≤ x ≤ 1) form a complete solid solution above ~ 923 …
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High-Efficiency Extraction of Fe, V, and Ti from Vanadium Titano …
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. ..., title={High-Efficiency Extraction of Fe, V, and Ti from Vanadium Titano-Magnetite Concentrate Based on Activated Reduction}, author={Zhang Jun and Wang …
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Metals | Free Full-Text | Vanadium–Titanium …
This paper investigated a pellet ore production process in which vanadium was extracted from vanadium and titanium magnetite concentrates using sulfuric acid leaching. Calcium and magnesium were …
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Discovery of vanadium titano-magnetite as a persulfate …
Vanadium titano-magnetite (VTM) is a multielement mineral, and it includes iron, titanium, and vanadium elements with small amounts of chromium, cobalt, nickel, etc. [50]. Traditionally, VTM was taken to be one of the most important materials for industry [51], while recently it was considered a catalyst due to its unique physical and chemical ...
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Formation of Hearth Sediment during Vanadium Titano-magnetite Smelting
From the above analysis, it was concluded that, during operation of the blast furnace, the pig iron in the bonding material in the hearth would be a liquid and Issue 11 Formation of Hearth Sediment during Vanadium Titano-magnetite Smelting in Blast Furnace 1011 Table 3 Mineral characteristics of metallic iron in bonding material Mineral …
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Mechanisms and Kinetics of Solid State Reduction of …
Titano magnetite ore is a potential resource for iron and titanium and even vanadium in the metallurgical industry and its solid state carbothermic reduction is found …
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Preparation and characterization of electromagnetic wave …
Polymetallic vanadium titano-magnetite (VTM) is recognized as one of the most refractory mineral resources because of its multiple-element composite symbiosis feature. ... Vanadium titanomagnetite (VTM) is a typical kind of symbiotic complex ore and rich in iron (Fe), titanium (Ti), vanadium (V), and other valuable metals. Abundant VTM ...
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Titaniferous Magnetites as a Source of Vanadium, …
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 …
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Fusion Separation of Vanadium-Titanium Magnetite and …
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 [1,2,3,4].Titanium, as an indispensable metal raw material for the modern industry and advanced science and technology, is mostly …
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Process Mineralogical Analysis of a Typical Vanadium …
Vanadium titano-magnetite concentrate (VTM) is a widely occurring multi-metal associated iron ore. The main components of VTM are iron, titanium, and …
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Sticking behaviour of vanadium titano-magnetite
The influence of reduction temperature and gas composition on sticking behaviour of vanadium titano-magnetite oxidised pellets was investigated in this work. It was found that the sticking index (SI) increased with temperature and CO content of gas mixture. Microstructure transformation of sticking interfaces under different temperature …
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Influence of different comminution flowsheets on the …
1. Introduction. Vanadium titano-magnetite (VTM) is a polymetallic symbiotic iron ore primarily containing iron, vanadium, and titanium. Iron minerals and titanium-bearing minerals coexist closely, primarily in the form of the strongly magnetic titanium magnetite and weakly magnetic ilmenite; however, vanadium-bearing minerals are …
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Softening and melting properties of different burden structures
Now the process of blast furnace is the main operating means for melting vanadium titano-magnetite to separate iron, vanadium and titanium. Actually, the cohesive zone was identified as a dominant factor for blast furnace operation according to subsequent studies (Leimalm, 2010, Zuo, 2000). The softening and melting of iron …
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Mineralogy and Geochemistry of a Vanadiferous Titano-Magnetite …
Vanadiferous titano-magnetite deposits, occurring as differentiates of gabbroanorthosite complexes, are associated with and genetically related to basic magmatic activity in some Archaean greenstone belts. ... study of the chemical data and elemental variation suggests that the members of the complex are differentiated fron an …
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The extraction of vanadium from titanomagnetites …
The mineral coulsonite (FeV 2 O 4) is often associated with magnetite (Radtke, 1962) and forms a series with magnetite and chromite, FeCr 2 O 4 (Reznitsky …
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Enhancing Reduction Separation and Efficient Recovery of Iron…
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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