oxidation of vanadium titanomagnetite ore

oxidation of vanadium titanomagnetite ore

Titanomagnetite - an overview ScienceDirect Topics

Jun 10, 2008  Progressive oxidation of magnetic minerals in rocks. Photomicrographs were taken using an oil immersion objective with the scale line showing 25 μm. From Wilson and Haggerty (1966). a–f. Progressive high-temperature oxidation of titanomagnetite in basalts. a. A brown homogeneous titanomagnetite grain with sharp well-formed crystal faces.

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Vanadium Ores Article about Vanadium Ores by The Free ...

Vanadium is present as an admixture in the following ore minerals: titanomagnetite (up to 8.8 percent V 2 O 5), magnomagnetite (1.6 percent), magnetite (0.6 percent), rutile (1 percent), and ilmenite (0.4 percent). Vanadium-ore deposits may be endogenic or exogenic.

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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

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Investigation of the oxidation induration mechanism of ...

1. Introduction. Vanadium titanomagnetite (VTM) is a special type of iron ore found in various countries, such as China, Australia, Russia, New Zealand, South Africa, and Canada [, , ].Deposited in the Panzhihua-Xichang area of Sichuan Province, Hongge VTM (HVTM) is a source not only of many valuable metal elements such as iron, titanium, and vanadium; it is also rich in chromium, which is the ...

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An extraction process to recover vanadium from low-grade ...

An extraction process to recover vanadium from low-grade vanadium-bearing titanomagnetite was developed. In this study, a mixed solvent system of di(2-ethylhexyl) phosphate (D2EHPA) and tri-n-butyl phosphate (TBP) diluted with kerosene was used for the selective extraction of vanadium from a hydrochloric acid leaching solution that contained low vanadium concentration with high

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Leaching characteristics of vanadium in mine tailings and ...

The oxidation state of vanadium in the mine tailings is expected to be similar to vanadium titanomagnetite ore, but with a lower purity. Additional spectroscopic studies, e.g. by application of vanadium K -edge X-ray absorption spectroscopy [27] are needed to identify the vanadium species in the residual soil fraction and the mine tailings.

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(PDF) Transformation of Vanadium-Bearing Titanomagnetite ...

XRD pattern of vanadium-bearing titanomagnetite concentrate used in this study. Minerals 2019 , 9 , 197 5 of 13 Minerals 2019 , 9 , x FOR PEER REVIEW 5 of 14

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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,

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Titaniferous Magnetite: Mineral information, data and ...

An overview of the geology and major ore deposits of Central Africa: Explanatory note for the 1: 4,000,000 map “Geology and major ore deposits of Central Africa”. Journal of African Earth Sciences, 44(4-5), 571-595.

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Extractive metallurgy of vanadium-containing titaniferous ...

The vanadium titanomagnetite concentrate, containing about 89% vanadium and 52% titanium of the vanadium titanomagnetite ore, is a main titanium-bearing product of vanadium titanomagnetite ...

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Utilization of a vanadium-containing titanomagnetite ...

Beneficiation studies were carried out on a titanomagnetite ore from Tete, Mozambique, containing 19.6% TiO2, 0.6% V2O5 and 49% Fe. Characterization of the ore and examination of the beneficiation ...

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Vanadium extraction from titano-magnetite by hydrofluoric acid

Regarding the extraction of vanadium from vanadium-bearing resources (such as vanadium-bearing titanomagnetite, vanadium-rich slag, stone coal) many efforts have been made by researchers [11][12 ...

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Reduction mechanism of high-chromium vanadium–titanium ...

The reduction of high-chromium vanadium–titanium magnetite as a typical titanomagnetite containing 0.95wt% V2O5 and 0.61wt% Cr2O3 by H2–CO–CO2 gas mixtures was investigated from 1223 to 1373 K. Both the reduction degree and reduction rate increase with increasing temperature and increasing hydrogen content. At a temperature of 1373 K, an H2/CO ratio of 5/2 by volume, and a

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Utilization of a vanadium-containing titanomagnetite ...

Beneficiation studies were carried out on a titanomagnetite ore from Tete, Mozambique, containing 19.6% TiO2, 0.6% V2O5 and 49% Fe. Characterization of the ore and examination of the beneficiation ...

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Transformation of Vanadium-Bearing Titanomagnetite ...

In this paper, transformation of vanadium-bearing titanomagnetite concentrate in the roasting is investigated based on thermodynamic analyses and experimental discussion. Thermodynamic analyses show that oxidation of V(III) into V(V) would happen in the roasting experiment over the range of 327–1327 C and vanadium-iron spinel phase (FeV

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Vanadium extraction from titano-magnetite by hydrofluoric acid

Regarding the extraction of vanadium from vanadium-bearing resources (such as vanadium-bearing titanomagnetite, vanadium-rich slag, stone coal) many efforts have been made by researchers [11][12 ...

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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 ...

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Effect of Cr 2 O 3 addition on the oxidation induration ...

Apr 12, 2018  As part of a research project to develop a novel clean smelting process for the comprehensive utilization of Hongge vanadium titanomagnetite (HVTM), in this study, the effect of Cr 2 O 3 addition on the oxidation induration mechanism of HVTM pellets (HVTMPs) was investigated in detail. The results showed that the compressive strength of the HVTMPs was greatly weakened by

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Carbothermic Reduction of Vanadium Titanomagnetite by ...

from the vanadium titanomagnetite resource, is the objective of this study. As a simulation study of the proposal process, The reduction behavior of the vanadium titanomagnetite ore in the microwave process and the distribution of the elements during the smelting process were studied. 2. Experimental The vanadium titanomagnetite ore was got ...

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Vanadium Extraction from a Fe–V (2.0 Mass%)–P (0.1 Mass ...

Nov 16, 2017  An innovative and sustainable way for production of vanadium is to co-process vanadium titanomagnetite ores with vanadium-bearing slag from steel industry, via reduction, producing a hot metal containing about 2 mass% vanadium, 0.1 mass% phosphorus, and 0.4 mass% silicon. A vanadium-extraction method was developed for these hot metals using a semi-industrial

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Vanadium processing Britannica

Vanadium processing, preparation of the metal for use in various products.. Vanadium (V) is a grayish silver metal whose crystal structure is a body-centred cubic (bcc) lattice, with a melting point of 1,926° C (3,499° F). The metal is used principally as an alloying addition to high-strength low-alloy (HSLA) steels and, to a lesser extent, in tool steels and iron and steel castings.

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Vanadium - Wikipedia

Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal.The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) somewhat stabilizes the free metal against further oxidation.

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Characterization and Pre-Concentration of Low-Grade ...

is rich in vanadium-titanium magnetite ore, which is mainly distributed in the Pan-xi and Cheng-de area [5]. However, in recent years, a large amount of low-grade vanadium-titanium magnetite ore with 0.03%–0.20% V2O5, 1.5%–4.5% TiO2 and 8%–18% Fe has been found in the Chao-yang area of China,

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Kinetics of Reduction of Vanadiferous Titanomagnetite ore ...

Kinetics of Reduction of Vanadiferous Titanomagnetite ore of Orissa A. Sarangi' S. Misra- ABSTRACT 200 mesh powder of vanadium bearing titaniferous magnetite ore was pe/letised to 0 5 cm dia spheres, heat hardened at 1100'C for z hour in nitrcgen. The pellets were reduced in a calibrated mixture of 60% N2, 40% CO.

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SIPS2016 - Oxidation Process of High-chromium Vanadium每 ...

High-chromium vanadium每bearing titanomagnetite containing 0.61wt% Cr2O3 was a special iron ore due to its complex mineral composition and special material characteristic. It was important to clearly know its specific processes including oxidation and reduction for efficiently utilizing it as much as possible. Naturally, this work was focused on the oxidation process of this special iron ore.

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Oxidation behaviour and phase characterization of ...

phase transition characteristic and oxidation mechanism of ilmenite ore [11]. In the present study, TMO ore is a combination of magnetite and ilmenite phase. Here, an attempt has been made to study the oxidation behavior and structural modification of the ore under oxygen and air atmospheres. The oxidized pretreated ore is

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Vanadium - Wikipedia

Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery-grey, ductile, malleable transition metal.The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) somewhat stabilizes the free metal against further oxidation.. Andrés Manuel del Río discovered compounds of vanadium

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Characterization and Pre-Concentration of Low-Grade ...

is rich in vanadium-titanium magnetite ore, which is mainly distributed in the Pan-xi and Cheng-de area [5]. However, in recent years, a large amount of low-grade vanadium-titanium magnetite ore with

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Kinetics of Reduction of Vanadiferous Titanomagnetite ore ...

Kinetics of Reduction of Vanadiferous Titanomagnetite ore of Orissa A. Sarangi' S. Misra- ABSTRACT 200 mesh powder of vanadium bearing titaniferous magnetite ore was pe/letised to 0 5

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SIPS2016 - Oxidation Process of High-chromium Vanadium每 ...

High-chromium vanadium每bearing titanomagnetite containing 0.61wt% Cr2O3 was a special iron ore due to its complex mineral composition and special material characteristic. It was important to clearly know its specific processes including oxidation and reduction for efficiently utilizing it as much as possible. Naturally, this work was focused on the oxidation process of this special iron ore.

More

Oxidation behaviour and phase characterization of ...

phase transition characteristic and oxidation mechanism of ilmenite ore [11]. In the present study, TMO ore is a combination of magnetite and ilmenite phase. Here, an attempt has been made to study the oxidation behavior and structural modification of the ore under oxygen and air atmospheres. The oxidized pretreated ore is

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A new process for the recovery of iron, vanadium, and ...

VVanadium titanomagnetite (VTM), which contains valuable elements such as iron, vvanadium, and titanium, has an extremely high potential value. VTM resources in the PanXi regions of China are estimated at up to 10 Gt (billion tons), and account for 93% and 63% of the country’s titanium and vanadium

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Effect of V2O5 addition on the oxidation induration ...

In the present work, the effect of V 2 O 5 addition on the oxidation induration process of Hongge vanadium titanomagnetite pellet (HVTMP) was investigated by various characterisation methods.

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CN103667678A - Roasting technology of vanadium titano ...

The present invention provides a roasting technology of a vanadium titano-magnetite oxidized pellet for a shaft furnace, and the roasting technology is as follows: fine grinding vanadium titano-magnetite into ore

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Transformation of Vanadium-Bearing Titanomagnetite ... - MDPI

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

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Recovering vanadium during the production of steel from ...

Recovering vanadium during the production of steel from iron sand ... New Zealand Steel produces iron and steel from iron sand (titanomagnetite). ... oxidation is also more likely to occur late in the recovery process when the. 3 Model for the main oxidation

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Reduction Behavior of Iron Ore Pellets with Simulated Coke ...

Wei Dong Tang, Song Tao Yang and Xiang Xin Xue, Effect of V 2 O 5 Addition on Oxidation Induration and Swelling Behavior of Chromium-Bearing Vanadium Titanomagnetite Pellets with Simulated

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Efficient Extraction of Vanadium from Vanadium–Titanium ...

In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate. Meanwhile, the mechanisms of potassium salt roasting

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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

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Chemistry of Vanadium - Chemistry LibreTexts

Vanadium(V) oxide as a Catalyst. During the Contact Process for manufacturing sulfuric acid, sulfur dioxide has to be converted into sulfur trioxide, which is done by passing sulfur dioxide and oxygen over a solid vanadium

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