COMPARISON OF SEVERAL TYPICAL PROCESSES FOR DEALING WITH VANADIUM
Processes of dealing with vanadium titanium magnetite iron ore in three enterprises,namely New Zealand Steel,Highveld Steel Vanadium Corp Ltd in South Africa and Panzhihua Iron and Steel Corporation in China are reviewed. The New Zealand Steel and Highveld corporation adopt rotary kiln direct reduction—EAF smelting—extracting …
Vanadium professional manufacturer
Vanadium, a silver-white metal, has a melting point (1890°C), a boiling point of 3380°C, and a density of 6.110g/cm³. It is not easy to oxidize in the air and can adsorb hydrofluoric acid, nitrides and aqua regia. chloride. It is also stable in alkali, sulfuric acid and salt. Hydrogen often penetrates widely with iron-iron, vanadium ...
Extraction of vanadium and enrichment of titanium from …
1. Introduction. China is rich in titanium resources, most of which are stored in Sichuan province in the form of vanadium‑titanium magnetite ore (Du, 1996).Generally, vanadium‑titanium magnetite concentrate including Fe of 30%, TiO 2 of 10%, and V 2 O 5 of 0.3% is smelted by using blast furnaces. Metal iron is separated from titanium by …
Effect of Smelting Time on Vanadium and Titanium …
Vanadium–titanium magnetite is an important Fe, V, and Ti resource with a highly comprehensive utilization value [1,2,3].Chinese vanadium–titanium magnetite reserves are plentiful but underutilized, with over 18 billion tons of proven vanadium and titanium magnetite reserves in China as of 2019 [].However, because of the complex …
CN102225358A
The invention provides an ore dressing method of a vanadium titanium magnetite. The method has low costs and simple operations, and comprises the following processing steps of: a. crushing and screening vanadium titanium magnetic iron ore, carrying out fine grinding to have a granularity no more than 3mm, then carrying out magnetic separation ...
Three Types Of Vanadium Ore Beneficiation …
Vanadium-titanium magnetite ore benefication process, inclding below equipment: Ball mill; Spiral classifier; Magnetic separation; Dewatering machine; Filter machine; Thickener; Grinding: The raw ore …
Hydrogen retention by vanadium-titanium alloys
Hydrogen retention in vanadium and its binary alloys with titanium are investigated by means of hydrogen thermal desorption spectrometry. The samples are saturated with hydrogen for 2000 h at a temperature of 620 K in an autoclave, where hydrogen is fed at a pressure of 16.8 MPa. It is shown that in V-Ti alloys there are two …
Smelting Reduction Characteristics and Mechanism of Vanadium–Titanium
The calcium hydroxide (Ca(OH) 2) was used as fluxes to adjust the basicity of vanadium–titanium magnetite carbon-bearing pellet.Its purity was 95%. 2.3 Smelting Reduction Experimental Method of Vanadium–Titanium Magnetite Carbon-Bearing Pellet. Firstly, a certain amount of vanadium–titanium magnetite, coal and Ca(OH) 2 …
Processing of vanadium: a review
The silver coloured element vanadium (symbol V) has an atomic weight of 50.9415, specific gravity of 5.96, and melting point of 1929 °C ( et al., 2002). Vanadium, niobium and tantalum belong to group five of the periodic table. The transition metal features a high melting point and good corrosion resistance at low temperature.
High-Efficiency Smelting Separation of Vanadium–Titanium …
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 …
Vanadium mobilization and redistribution during mineral
Due to the long-term open stockpile, the release of vanadium (V) from V-containing tailings will cause continuous V pollution in the mining area. ... Vanadium mobilization and redistribution during mineral transformation of vanadium-titanium magnetite tailings with different weathering degrees Sci Total Environ. 2023 Jun 23;894:165068. doi: 10. ...
Preparation and Modification of Heterogeneous Vanadium-Titanium …
Over few recent decades vanadium-titanium-based catalysts have been widely used in chemical, petroleum and environmental industries, such as partial oxidation and oxidative dehydrogenation of hydrocarbons, NO x removal, and ammoxidation of alkyl aromatic hydrocarbons [1–5].In respect of preparation, characterization and modification …
Optimized magnetic separation for efficient recovery of V …
They reported that a vanadium‑titanium magnetite concentrate containing 1.14% V 2 O 5, 22.22% TiO 2, 42.51% Fe, and a concentrate of ilmenite containing 16.05% TiO 2 and 20.77% Fe were obtained according to the different magnetic intensities in the range of 0.4–0.8 T. However, because there is no explanation for the vanadium …
All About Titanium Alloy 6-4: Definition, History, Properties …
Titanium 6-4, also known as Ti-6Al-4V alloy, is an alpha-beta titanium alloy in which aluminum acts as the alpha stabilizer and vanadium acts as the beta stabilizer. Ti-6Al-4V composition is 5.5–6.75% aluminum and 3.5–4.5% vanadium, with the remaining percentage being titanium. Titanium alloy 6-4 offers a great blend of high strength and ...
Contrasted speciation distribution of toxic metal(loid)s and …
An important source of V-pollution is from vanadium-titanium magnetite industry including mining, dressing, and smelting (Gan et al., 2022; Hu et al., 2018b). In recent years, as mining activities have intensified, the production and stockpiling of mine tailings have increased (Liu et al., 2022).
Experimental Testing of Greenhouse-Integrated Vanadium-Titanium …
As a solution for solar heating, the low-cost and long-life vanadium-titanium black ceramic solar absorbers have been used in rural construction. However, in contrast to its high absorptance (0.93–0.97), ceramic also has high emissivity (approximately 90%) and low thermal conductivity (1.3 W/(m·K)). Without a glaze covering, ceramic absorbers …
A new process for the recovery of iron, vanadium, and titanium …
In addition to vanadium, titanium concentrates were also obtained by medium-intensity magnetic separation and the grade and recovery were 38% and 75%, respectively. View. Show abstract.
Recovery of Vanadium, Titanium, and Iron from Vanadium
In this study, an efficient utilization of vanadium titanomagnetite concentrate was systemically investigated through potassium pyrosulfate (K2S2O7) synergized with …
Efficient Extraction of Vanadium from Vanadium–Titanium …
vanadium–titanium magnetite is another major raw material from which to extract vanadium. China's vanadium–titanium magnetite reserves are huge—up to 9.83 billion tons that reach mineable.
Rhizobia population was favoured during in situ
In the present study, we monitored the dynamic change of microbiota in the rhizosphere of Pongamia pinnata during a 2-year on-site remediation of vanadium-titanium magnetite tailings. After remediation, overall soil health conditions were significantly improved as increased available N and P contents and enzyme activities were discovered.
Vanadium (V) Ore | Minerals, Formation » …
Vanadium (V) ore refers to a type of mineral deposit that contains vanadium, a chemical element with the atomic number 23 and the symbol V in the periodic table. Vanadium is a transition metal that is …
Carbothermic Reduction of Vanadium-Titanium …
XRD patterns for vanadium-titanium magnetite. ISIJ International, Vol. 58 (2018), No. 4. was shown in Figs. 5–6. In the shaded area, metal and slag can be well separated. Figure 5 shows that when the ratio of carbon is 2.0 to 2.8 and the content of NaOH is 30% to 45% at 1 473 K, metal and slag can be well separated.
Superconductivity of vanadium and vanadium-titanium alloys …
Abstract. The effect of pressure on the superconducting transition temperature T c of vanadium and V 94 Ti 6, V 85 Ti 15, V 67 Ti 33, and V 48 Ti 52 (at %) bcc alloys has been studied. It has been found that the T c ( P) dependence of pure vanadium is close to linear in the pressure ranges 0–14 and 23–32 GPa, whereas dT c …
Life cycle assessment of the comprehensive utilisation of vanadium
The tailings and vanadium-bearing slag are used to produce ilmenite and vanadium pentoxide. Although many studies have reported the utilisation of high titanium slag (Ai et al., 2006, Bonsack and Schneider, 2001, Han et al., 2012, Sui et al., 2014), no research applying this material in industrial production is yet available. Therefore, during ...
Smelting Vanadium–Titanium Magnetite by OY Furnace: …
OY furnace, an improvement of COREX, is the vigorously developed environmentally friendly iron-making process. However, it has a higher fuel ratio than blast furnace. The high prereduction degree (PRD) of direct reduction iron (DRI) is beneficial to decrease the fuel consumption of OY furnace but also affect the softening, melting, and …
Minerals | Free Full-Text | Influence of Vanadium–Titanium …
Vanadium–titanium ore possesses significant mining and utilization value. The basicity of vanadium–titanium sinter has a direct impact on the formation, location, thickness, permeability, and heat exchange of the cohesive zone in the blast furnace. This paper investigated the influence of increasing the basicity of the sinter on the …
Phase transformation and slag evolution of vanadium–titanium …
1. Introduction. Vanadium (V) and titanium (Ti) are important strategic metals, which are widely used in metallurgical industry, chemical industry, machinery manufacturing, battery, aerospace, etc. [[1], [2], [3], [4]].As a representative resource for extracting V and Ti, vanadium–titanium magnetite (VTM) is a polymetallic symbiotic …
Life cycle assessment of the comprehensive utilisation of vanadium
By contrast, iron ore mining dressing and sintering contribute the most to acidification potential (AP), eutrophication potential ... vanadium and titanium. VTM is mainly used in China to produce crude steel, vanadium pentoxide and ilmenite through the BF iron-making → BOF vanadium extraction → semi-steel smelting route (Chen and …
Efficient Recovery of Vanadium and Titanium from Domestic …
A modified process using molten salt roasting and water leaching to extract vanadium and titanium from domestic titanomagnetite concentrate was investigated. …
Metals | Free Full-Text | Vanadium–Titanium …
Vanadium is widely used in the steel, alloying, pharmaceutical, and aerospace industries because of its excellent physicochemical properties [ 1, 2, 3 ]. Vanadium and titanium magnetite …
