oxidation of vanadium titanomagnetite ore

Titaniferous Magnetites as a Source of Vanadium, …

The vanadium-bearing hot metal is transferred to a basic oxygen furnace (BOF) and then treated using a controlled oxygen blow to oxidize the vanadium, producing a …

Gas-based reduction of vanadium titano-magnetite concentrate: behavior

International Journal of Minerals, Metallurgy and Materials - The reduction of vanadium titano-magnetite pellets by H2–CO at temperatures from 850 to 1050°C was investigated in this...

Hydrogen reduction behaviors and mechanisms of vanadium …

In this study, the reduction effect and product characteristics of vanadium titanomagnetite ore using hydrogen as reductant under fluidized bed conditions were …

Mineralogical Characteristics of Baima Vanadium Titanomagnetite …

The Baima vanadium titanomagnetite deposit, located in the Panzhihua-Xichang (Panxi) metallogenic belt in China, is one of the super-large deposits in the region. The titanomagnetite upgrading process involves grinding the raw ore followed by magnetic separation. To determine the processing characteristics of the ore and assess 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 …

A method for recovery of iron, titanium, and vanadium …

Keywords: recovery; vanadium; titanomagnetite; direct reduction; sodium oxidation; smelting separation; water leaching 1. Introduction Vanadium-bearing titanomagnetite is a strategic source of titanium, vanadium, iron, and other valuable elements [1–2]. In China, the Panzhihua-Xichang (Panxi) district is widely

Kinetic study on microwave-enhanced direct reduction of titanomagnetite …

In the direct reduction process, the main phase of the titanomagnetite ore is the solid solution formed by Fe 3 O 4 and FeTiO 3 [24, 25]. It is reported that more lattice defects and higher porosity will be formed after the pre-oxidation of TC, indicating that the pre-oxidation can

Investigation of the oxidation induration mechanism of Hongge vanadium

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 [[1], [2], [3]].Deposited in the Panzhihua-Xichang area of Sichuan Province, Hongge VTM (HVTM) is a source not only of many valuable metal elements …

Oxidation kinetics of a low-grade vanadiferous titanomagnetite …

This study investigated the oxidation induration of Hongge vanadium titanomagnetite pellets (HVTMP) with different TiO2 additions, and its influence on subsequent reduction behavior with simulated ...

[PDF] Characterization and Pre-Concentration of Low-Grade Vanadium …

A large number of unexploited low-grade vanadium-titanium magnetite deposits have been found in the Chao-yang area of China in recent years. The reserves are estimated at more than 20 billion tons. A mineralogical study of raw sample indicated that it was a typical low-grade vanadium-titanium magnetite ore with weathering. Most of …

Oxidation behavior of low-grade vanadiferous …

In order to clarify the oxidation mechanisms and make better use of the low-grade vanadiferous titanomagnetite concentrate with high titanium (LVTC), the …

Theoretical Modeling and Experimental Evaluation of Vanadium …

Recovering vanadium from vanadium titanium-magnetite (VTM) ore using (NH4)2C2O4 is a clean hydrometallurgical process, but the drawback is the low recovery and slow kinetics due to the formation of inhibitor. A novel energy-efficient mathematical model was derived for green leaching of VTM in which the mechanical activation (MA) …

The oxidation state of vanadium in titanomagnetite from …

The redox conditions prevailing during the formation of vanadiferous titanomagnetites from three layered intrusions (Bushveld; Koillismaa; Skaergaard) have …

A New Route of Roasting-Flotation-Leaching for the …

Ti-concentrate from altered Vanadium titanomagnetite (VTM) ore. Based on the character of the ore sample, it is recommended to recover the Ti-bearing minerals, ilmenite and anatase, as composite mineral. Pretreatment experiments indicate that the oxidation roasting (800 C) and acid washing methods increase the ﬂotation indexes …

A novel process for the recovery of iron, titanium, and vanadium …

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 …

Efficient separation of vanadium, titanium, and iron from vanadium …

1. Introduction. The vanadium–bearing titanomagnetite (VBT) is a strategic and complex iron ore, which containing valuable metals of vanadium, titanium, and iron used as constituents of several alloys, whitepigments, and steel [1], [2], [3].In China, the gross reserve of titanium in VBT ore is estimated to be about 1.18 million tons, …

High-Efficiency Extraction of Fe, V, and Ti from Vanadium …

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 enrichment [].Therefore, the question of how to improve comprehensive utilization of vanadium-titanium magnetite concentrate (VTMC) is of decisive importance for the …

Titanomagnetite

The principal ore minerals are titanomagnetite and ilmenite, ... (near magnetite) and rhombohedral (near ilmenite) phases. Two stages of low temperature oxidation of titanomagnetite are shown in Figs. 2.8g–2.8h. ... but their ilmenomagnetite and vanadium grades become lower toward the west of the deposit area (Markkula, 1980).

Theoretical Modeling and Experimental Evaluation of …

Abstract. Recovering vanadium from vanadium titanium-magnetite (VTM) ore using (NH 4) 2 C 2 O 4 is a clean hydrometallurgical process, but the drawback is …

Vanadium

Vanadium is used primarily in the production of steel alloys; as a catalyst for the chemical industry; in the making of ceramics, glasses, and pigments; and in vanadium redox-flow batteries (VRBs) for large-scale storage of electricity. World vanadium resources in 2012 were estimated to be 63 million metric tons, which include about 14 million metric tons of …

The extraction of vanadium from titanomagnetites and other …

Zhu et al. (2016) leached vanadium-bearing titanomagnetite ore from Shanxi province in China with H 2 SO 4 and CaF 2. The fluorite additive generates hydrofluoric acid (Reaction (34)), which attacks silica and iron oxides in the ore …

Oxidation kinetics of a low-grade vanadiferous …

In order to better develop and utilize the low-grade vanadiferous titanomagnetite concentrate with high titanium (LVCHT) and provide reference for the …

Oxidation kinetics of a low-grade vanadiferous titanomagnetite …

[1] Li W., Fu G. Q., Chu M. and Zhu M. Y. Influence of V2O5 Content on the Gas-Based Direct Reduction of Hongge Vanadium Titanomagnetite Pellets with Simulated Shaft Furnace Gases Jom 70 76-80 Google Scholar [2] Prabowo S. W., Longbottom R. J., Monaghan B. J., Del Puerto D., Ryan M. J. and Bumby C. W. Sticking-Free Reduction of …

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 …

Effect of Cr2O3 addition on the oxidation induration …

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 Cr2O3 addition on the oxidation induration mechanism of HVTM pellets (HVTMPs) was investigated in detail. The results showed that the compressive strength …

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

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 …

Oxidation Kinetics, Structural Changes and Element …

This study investigated the oxidation induration of Hongge vanadium titanomagnetite pellets (HVTMP) with different TiO 2 additions, and its influence on …

Extraction of titanium, vanadium and iron from titanomagnetite …

Currently, there are two major routes for production of vanadium [3]. In the first process, vanadium containing titanomagnetite ore is reduced in an electric arc furnace and vanadium is collected in the iron phase. ... in recovery may be attributed to partial sintering of the charge at higher temperature which hinders the vanadium …

The extraction of vanadium from titanomagnetites and …

Semantic Scholar extracted view of "The extraction of vanadium from titanomagnetites and other sources" by Rorie Gilligan et al. ... Enhanced leaching of vanadium slag in acidic solution by electro-oxidation. Zuohua Liu Yan Li +4 authors ... Save. The oxidation state of vanadium in titanomagnetite from layered basic …