oxidation of vanadium titanomagnetite ore

US3929461A

Vanadium and titanium values are recovered from vanadium containing titaniferous iron ore by subjecting the ore to a reduction process to separate the iron from the slag containing the vanadium and titanium, fusing the slag with an alkali metal salt, oxidizing the vanadium to its plus five oxidation state, and recovering the vanadium and titanium by conventional techniques.

Oxidation Kinetics, Structural Changes and Element ...

Oxidation Kinetics, Structural Changes and Element Migration during Oxidation Process of Vanadium-titanium Magnetite Ore: Feng PAN 1,Qing-shan ZHU 1,Zhan DU 1,2,Hao-yan SUN 1: 1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences CAS, Beijing 100190, China 2.

ABM Proceedings

The next target was to produce a vanadium slag with low phosphorus content out of the vanadium rich hot metal containing around 1.7% vanadium and 0.1% phosphorus by selective oxidation using the 6 tons universal converter at Swerea MEFOS.

Article The investigate of vanadium-containing slurry ...

 · oxidation roasting 1. Introduction Vanadium is one of the most important strategic metals. It is widely used in various industries such as metallurgy, chemical, aerospace, medicine, etc. [1−10].The main raw materials for vanadium extraction are titanomagnetite ore deposits. [11–15]. Vanadium can be recovered from coal, spent

A method for recovery of iron, titanium, and vanadium from ...

An innovative method for recovering valuable elements from vanadium-bearing titanomagnetite is proposed. This method involves two procedures: low-temperature roasting of vanadium-bearing titanomagnetite and water leaching of roasting slag. During the roasting process, the reduction of iron oxides to metallic iron, the sodium oxidation of vanadium oxides to water-soluble sodium vanadate, …

Influence and Mechanism of CaO on the Oxidation Induration ...

The oxidation induration process of Hongge vanadium titanomagnetite pellets (HVTMP) with different amounts of CaO was investigated. This research forms part of an ongoing study on a novel and clean smelting process for the comprehensive utilization of Hongge vanadium titanomagnetite. The results

The Oxidation States of Vanadium

Vanadium has 5 valence electrons that can be lost. One of the characteristics of transition metal is their ability to adopt multiple oxidation states. Vanadium exhibits four common oxidation states +5, +4, +3, and +2 each of which can be distinguished by its color.

A method for recovery of iron, titanium, and vanadium from ...

Study on the pre-treatment of oxidized zinc ore prior to flotation; Comprehensive recovery of lead, zinc, and iron from hazardous jarosite residues using direct reduction followed by magnetic separation; A method for recovery of iron, titanium, and vanadium from vanadium-bearing titanomagnetite

Vanadium | Geology for Investors

 · Vanadium exists in four oxidation states, so vanadium pentoxide (V 2 O 5) dissolved in sulfuric acid can be used in both the positive and negative electrolyte tanks. Vanadium redox batteries are long-lasting, have a very large storage capacity, a rapid response time, and can be stored unused for long periods of time.

A method for recovery of iron, titanium, and vanadium from ...

 · An innovative method for recovering valuable elements from vanadium-bearing titanomagnetite is proposed. This method involves two procedures: low-temperature roasting of vanadium-bearing titanomagnetite and water leaching of roasting slag. During the roasting process, the reduction of iron oxides to metallic iron, the sodium oxidation of vanadium oxides to water-soluble …

Novel Methods to Extract Vanadium from Vanadium Slag by ...

[12] Zhong-hao Zhang, Yan-heng Wang, A new process of vanadium extraction from silica based vanadium ore by oxidation roasting with calcium compounds, Chemical World. 41 (2000) 290-292 (in Chinese). [13] Laizong Cao, Dajun Liu, Lihua Gao, Changhong Liu, Qian Shen, Experimental study on leaching vanadium by sub-molten salt method, Iron Steel ...

Oxidation induration process and kinetics of Hongge ...

 · The results indicated that HVTM was a high-chromium vanadium-bearing titanomagnetite containing 1.48 wt-% Cr 2 O 3, and the crystal stock strength was 625 N. The compressive strength of HVTM pellets could be improved by …

Vanadium extraction from a magnetite ore using alkaline ...

extract vanadium [2, 11-15]. In titanomagnetite (i.e. one of the most promising vanadium ores), vanadium is available in the form of trivalent or tetravalent ions. Vanadium is produced from this ore through vanadium pentoxide under the oxidative roasting operation [16]. During

LETTER The oxidation state of vanadium in titanomagnetite ...

The oxidation state of vanadium in titanomagnetite from layered basic intrusions E TIENNE B ALAN, 1,2, * J OHAN P.R. D E V ILLIERS, 3 S IGRID G RIET E ECKHOUT, 4 P IETER G LATZEL, 4 M ICHAEL J. T OPLIS, 5 E MMANUEL F RITSCH, 1,2 T HIERRY A LLARD, 2 L AURENCE G ALOISY, …

VANADIUM MARKET IN THE WORLD

vanadium bearing slag & magnetite ore for production of vanadium. About 100 M/T of magnetite ore is required to produce 1.5 M/T of V2O5. Here, the normal mining cost is associated with open cast mining and is highly sensitive to transportation cost due to low % V in ore …

Vanadium and Iron Complexes for Catalytic Oxidation

Sefström announced the discovery of vanadium, the brown lead ore from Mexico was reanalysed and it was shown that it really contained vanadium instead of chromium. Natural vanadium is a mixture of two isotopes, 51V (99.76%) and 50V (0.24%), the latter being slightly radioactive with a half-life of >3.9 x 1017 years. Important sources of the metal

VanadiuminSouthAfrica (MetalReviewSeries

Steel &Vanadium Corporation Limited, giving details ofthevarious proce~ses used, including theroa~t-Ieach, rotary-kiln, electric-smelting, shaking-ladle, andbasic-oxygen-furnace operations. ... titanomagnetite ore,ofevaluating theavailability and magnitudeofsuitableorereserves,and,finally,ofcon-ducting amarket survey oftheglobal demand for

Oxidation induration process and kinetics of Hongge ...

(2017). Oxidation induration process and kinetics of Hongge vanadium titanium-bearing magnetite pellets. Ironmaking & Steelmaking: Vol. 44, No. 4, pp. 294-303.

Influence Mechanism of SiO2 on the Oxidation Behavior and ...

As part of ongoing work to develop a low fuel consumption smelting process for comprehensive utilization of Hongge vanadium titanomagnetite (HVTM), the influence mechanism of SiO2 on the oxidation behavior and induration process of HVTM pellets (HVTMP) was investigated in this study. Results showed that as the amount of added SiO2 increased, the oxidation degree and compressive strength …

Oxidation State of Vanadium in Natural V-bearing ...

Vanadium is also an element of significant industrial importance, being a component of high-performance steels (Figure 28). However, ore minerals with vanadium as the primary metal rarely occur in nature. Rather, vanadium is extracted from V-rich titanomagnetite (Fe 3–x Ti x O 4) cumulates in the upper part of layered basic intrusions. The ...

Transformation of Vanadium-Bearing Titanomagnetite ...

Vanadium-bearing titanomagnetite is a very important mineral resource of vanadium, titanium and iron. Currently, the major process for smelting vanadium-bearing titanomagnetite involves firstly extracting iron and then extracting vanadium of slag by sodium salt roasting and water leaching technologies [1,2,3,4,5,6,7,8], which causes serious environmental pollution (especially hazardous gases ...

Vanadium Resources in Titaniferous Magnetite Deposits

Vanadium can be recovered from titaniferous magnetite ore by either of two processes: (1) precipitating a vanadium salt from a leach of ore roasted with salt, or (2) precipitation from a leach of salt-roasted vanadium-rich slag obtained by smelting the ore to make a vanadium …

Kinetics of Reduction of Vanadiferous Titanomagnetite ore ...

Vanadium bearing titanomagnetite ore is one of the major sources of vanadium in the world. Titanomagnetite ore of Orissa has drawn considerable attention due to its appreciable vanadium content. The characterisation of the ore is an essential step for determining its grade, economic viability and other features. Dunn

NEW PROCESS OF EXTRACTING VANADIUM FROM

Vanadium-titanium magnetite ore is ... The new process of vanadium extraction from molten vanadium slag by direct oxidation ... B.C.Jena, W.Dresler, I.G.Reilly, Extraction of Titanium, Vanadium and Iron from Titanomagnetite Deposits at Pipestone Lake, Manitoba, Canada _,Miner. Eng., 8 …

Redox state of vanadium in the titanomagnetite layers of ...

Vanadium oxidation state ranges from divalent to pentavalent in terrestrial magmatic systems, which makes it a valuable geochemical indicator, providing useful infor-mation on the oxygen fugacity in magmatic processes (Sutton et al., 2005). Vana-dium does not form ore minerals by itself but is extracted from V-rich titanomagnetite (Fe 3−xTi

The extraction of vanadium from titanomagnetites and other ...

 · While vanadium production flow sheets vary between different mines and processing plants, there are a few common features. The process used will vary depending on the nature of the ore. Most vanadium is produced from titanomagnetite ores, either directly or from the slag generated by smelting of titanomagnetite ores.

A novel process for the recovery of iron, titanium, and ...

A sodium modification-direct reduction coupled process was proposed for the simultaneous extraction of V and Fe from vanadium- bearing titanomagnetite. The sodium oxidation of vanadium oxides to water-soluble sodium vanadate and the transformation of iron oxides to metallic iron were accomplished in a single-step high-temperature process. The increase in roasting temperature favors the ...

extraction of vanadium from canadian titanomagnetite ore

Vanadium extraction from vanadium-bearing . 2017-4-20 · vanadium-bearing titanomagnetite 2 Concept of vanadium extraction by selective chlorination The proposed novel process as shown in Fig. 1 involves three parts: 1) selectively chloridizing vanadium-bearing ore and extracting vanadium by the form of vanadium

vanadium mineral ores

Vanadium Titano Ore libertyedu . Almost 88% of vanadium worldwide is extracted from vanadium titano-magnetite ore while the rest is extracted from other minerals ... iron-titanium-vanadium ore ... Inquire Now; Iron ore Wikipedia. Iron ores are rocks and minerals from which metallic iron can be economically extracted.

The oxidation state of vanadium in titanomagnetite from ...

 · The most concentrated samples (up to 2.4 wt% V 2 O 3) contain approximately 10% of vanadium as V 4+. Both V 3+ and V 4+ occur in the octahedral site of the spinel structure. Considering the low magnetite/melt V 4+ partition coefficients, this suggests that vanadium ores crystallized under specific oxidizing conditions.

Extractive Metallurgy of Vanadium-Containing Titaniferous ...

 · Li, D., et al., 1989, "Study on metallurgical process of vanadium- bearing titanomagnetite in Blast Furnace," Proceedings of International Symposium on Exploitation and Utilization of Vanadium ...

A comparative study of vanadium recovery from titaniferous ...

Titaniferous magnetite (titanomagnetite) resources contain economically significant reserves of vanadium and iron as well as titanium. Titanomagnetite is a primary source of vanadium– about 88% of the world''s vanadium is extracted from titanomagnetite (Fischer, 1975; …