vanadium titan e periment

Minerals | Free Full-Text | The Prospect of Recovering Vanadium …

Vanadium (V), nickel (Ni), and molybdenum (Mo) are all important strategic metal resources and are widely used in steel, electronics, aerospace, the military, industry, and so on [1,2,3].Key metals in black shale have received growing attention as global ore grades have continued to decline [4,5].Stone coal is a vanadium-bearing shale (total …

Titangruppe: Elemente der vierten Nebengruppe

In diesem Kapitel werden die Elemente der vierten Nebengruppe des Periodensystems der Elemente mit ihren wichtigsten Verbindungen beschrieben. Vor allem ist Titan Bestandteil vieler Gebrauchsgegenstände des täglichen Bedarfs und in technologischer Hinsicht für die Zukunft unverzichtbar, aber auch Zirconium und Hafnium …

Efficient separation of vanadium, titanium and iron …

A novel process featuring pressurized pyrolysis of ammonium chloride-acid leaching-solvent extraction was carried out to separate vanadium, titanium and iron from …

Effect of Roasting Characteristics of Vanadium-Rich Slag …

experimental evidence to establish a correlation between the roasting char-acteristics of vanadium-rich slag and its vanadium leaching behavior, as well as a theoretical and technical basis for effective utilization of vanadium-rich slag. INTRODUCTION Vanadium is a strategic metal that is widely used in many ﬁelds, including the steel ...

An Environment-Friendly Process Featuring Calcified …

Iron Steel Vanadium Titan. 2018, 39, 6–12. (In Chinese) [CrossRef] 22. ... Under the optimal experimental conditions, the vanadium leaching rate in the pellets reached 77.86%, while the iron ...

Materials | Free Full-Text | Titanium-Enriched Slag Prepared …

The titanium-enriched slag was obtained via atmospheric hydrochloric acid leaching of mechanically activated vanadium titanomagnetite concentrates (VTMCs). Under the influence of mechanical activation, specific physicochemical changes were observed via X-ray diffractometry, scanning electron microscopy, and granulometric laser …

Recovery of Vanadium, Titanium, and Iron from …

The result shows that 95.87% of vanadium and 80.13% of iron could be extracted, while that of titanium was only 9.68% under the condition of first-order …

Materials | Free Full-Text | Fusion Separation of Vanadium …

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 derived from the …

Metals | Free Full-Text | Titanium Impurity Control in …

Introduction. Vanadium–titanium magnetite (VTM) is a strategic resource which is rich in vanadium, titanium, and iron [ 1, 2 ]. Blast furnaces, which have the …

Minerals | Free Full-Text | Effects of High Proportion …

The New Zealand sea sand ore is a kind of vanadia–titania magnetite formed by erosion in the coastal zone. Because of its coarse particle size, smooth spherical particles, complex chemical composition, it has been added to sinter as an auxiliary material. Based on the principle of optimizing ore blending to strengthen advantages and weaken …

Iron-T Vanadium Project

The Iron-T Vanadium-Titanium-Iron Project is a key VTM mining asset with a 22km strike length and NI 43-101 Resource near Glencore's Cu-Zn Matagami Mine Skip to content …

Reduction and Smelting of Vanadium Titanomagnetite …

Reduction and smelting of the vanadium titanomagnetite metallized pellets have been experimentally investigated in this study. By using the high-temperature smelting, rapid quenching, and electron probe x-ray microanalysis (EPMA) technique, the effects of basicity, reaction time, and graphite reductant amount were investigated. The vanadium …

The effect of micro alloying elements (vanadium, titanium) …

The decrease of pinning forces can be attributed to the decrease of volume fraction and increase of radius of (vanadium, titanium)(carbon, nitrogen). Compared with critical grain sizes, the larger experimental grain …

Iron, Titanium and Vanadium Extraction from Titaniferous …

The plausibility of creating press, vanadium, and titaniferous containing materials is additionally shown. We consider sources of crude materials for creating pigmentary titanium dioxide in Russia. We found that Russia has colossal adjusted stocks of titan-containing metals, counting ilmenite, titaniferous, and leucoxene.

Efficient separation of vanadium, titanium, and iron …

The vanadium–bearing titanomagnetite (VBT) is a strategic and complex iron ore, which containing valuable metals of vanadium, titanium, and iron used as …

Crystals | Free Full-Text | Direct Evidence for Phase Transition …

V-bearing molten iron was obtained by adding Na2CO3 in the smelting process of vanadium titanomagnetite at low temperature. Two forms of V-rich carbides ((Fe,V)3C, VC) were detected in the V-bearing pig iron products. Once the smelting temperature was above 1300 °C, most of the V in the raw ore was reduced into molten …

An Environment-Friendly Process Featuring …

Effect of CaO on the Phase Evolution of Vanadium Slag …

In this paper, the effects of CaO on the phase evolution mechanism of vanadium slag during slagging, direct roasting, and (NH4)2CO3 leaching processes are investigated. Results indicate that with the increase in CaO content, vanadium is always concentrated as (Fe, Mn, Mg)V2O4 in spinels, part of titanium is concentrated and …

Thermodynamic Properties of Vanadium | SpringerLink

The thermodynamic properties of vanadium have been evaluated to 3700 K. Selected values include an enthalpy of sublimation of 515 ± 2 kJ/mol at 298.15 K and a boiling point at one atmosphere pressure of 3694 K. ... Based on the original experimental values, Eq ... Gitterstruktur und Thermische Ausdechung der Übergangsmetalle …

Metals | Free Full-Text | Effect of Smelting Time on Vanadium …

The experimental results show that extending the smelting time increases the FeO content in the slag, the LV rose from 0.66 to 5.02, the LTi declined from 206.90 to 114.86, the shorter smelting time is favorable for increasing the recovery ratio of vanadium and titanium in metal and slag. ... Iron Steel Vanadium Titan. 2018, 39, 71–78 ...

Metals | Free Full-Text | Titanium Impurity Control in V …

The sodium smelting of vanadium–titanium magnetite (VTM) can realize a multi-component comprehensive utilization of VTM. To broaden the application of the vanadium-bearing pig iron produced through this process, it is imperative to maintain the titanium content in molten iron at a very low level. In this study, the effects of …

Oral bioaccessibility and health risk assessment of vanadium…

1. Introduction. Vanadium, which occurs in soil at a mean concentration of about 90 mg kg −1 in global, has been recognized as potentially dangerous pollutant in the same class as mercury, lead and arsenic (Wisawapipat and Kretzschmar, 2017; Teng et al., 2011).Interest in vanadium in the environment is growing continuously because of the …

An Environment-Friendly Process Featuring Calcified …

Converter vanadium slag is a byproduct of the iron making process when the vanadium titanomagnetite is used as iron raw material. A cleaner process including calcified roasting, dilute acid leaching, precipitation purification, vanadium precipitation with ammonium salt, followed by thermal decomposition was proposed to extract vanadium …

A green and efficient route for simultaneous recovery of low …

The extraction ratio of vanadium could reach 90.5% at 800 °C, in which the mass ratio of V/Cr was 32,400. Mass ratio of V/Cr in this work was 1448 to 20,250 times larger than that in the literatures. Based on the high vanadium extraction ratio, the problems of separation of V and Cr and the presence of Cr 6+ were solved from the source. This ...

Effect of Calcium Oxide on the Crushing Strength, Reduction, …

The effect of calcium oxide on the crushing strength, reduction, and smelting performance of high-chromium vanadium–titanium magnetite pellets (HCVTMP) was studied in this work. The main characterization methods of an electronic universal testing machine (EUTM), X-ray fluorescent (XRF), inductively-coupled plasma-atomic emission …

Melt Structure of FeO-SiO2-V2O3-TiO2-MgO Vanadium …

In this paper, the melt structure of FeO-SiO 2 -V 2 O 3 -TiO 2 -MgO vanadium slag was studied by molecular dynamics simulation and experimental characterization. The following conclusions were summarized. (1) The vanadium slag is mainly composed of spinel and silicate phases, with the spinel phase distributes around …

Study on the Behavior Mechanism of K and Na …

In this paper, the sources of K and Na in vanadium-nitrogen (VN) alloys and their effects on the furnace structure were studied. The results show that K and Na are mainly present as counter-ions of …

Utilization of Vanadium Extraction from Vanadium-bearing Steel …

Abstract. Vanadium extraction from vanadium-containing steel slag mainly includes fire method and wet method. The advantages and disadvantages of various ways of vanadium extraction from vanadium ...

Separations | Free Full-Text | Prediction of the Vanadium …

The vanadium content of molten iron is an important economic indicator for a vanadium–titanium magnetite smelting blast furnace, and it is of great importance in blast furnace production to be able to accurately predict it and optimize the operation of vanadium extraction. Based on the historical data of a commercial blast furnace, the …

Metals | Free Full-Text | Effect of V2O5 on …

Vanadium titanomagnetite is an important mineral resource. It is a raw material for ironmaking, vanadium extraction, strategic metal titanium production, and titanium dioxide production. In this study, high …

Removal of Sodium from Vanadium Tailings by Calcification …

Vanadium tailings from vanadium extraction by a sodium roasting process are solid waste and cannot be used in sintering and ironmaking due to their high sodium content. In this paper, a calcification and reduction roasting process was proposed to remove sodium from vanadium tailings. The effects of Ca(OH)2 addition, reduction …

Materials | Free Full-Text | Fusion Separation of …

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 …

Australian scientists create new class of titanium alloys | Science …

The mainstay of the titanium industry is an alloy known as Ti-6Al-4V, which contains 6% aluminium and 4% vanadium. Invented in 1954, this single alloy accounts for more than 50% of the entire ...

Kinetics of the Carbonate Leaching for Calcium …

After the leaching experiment, the leaching solution was subjected to filtration and separation. The leaching residues were dried in the oven at 120 °C for 2 h for the subsequent X-ray diffraction analysis. ... Iron Steel Vanadium Titan. 1992, 13, 1–9. (In Chinese) [Google Scholar] He, Q.R. Roasting extraction of vanadium pentoxide from ...

Theoretical Analyses and Experimental Investigations of …

Vanadium-bearing titanomagnetite plays an important role in industry as it can be used as a source of iron, titanium, and vanadium.1 At present, most of the vanadium-bearing titanomagnetite concentrates are conventionally used as the main raw materials of the blast furnace process for iron making in the Panzhihua area of China.2 …

Removal of Sodium from Vanadium Tailings by Calcification …

2.2. Experimental Methods. Calcium hydroxide (Ca(OH) 2) with analytical purity grade was used as a calcifying agent.Firstly, vanadium tailing was weighed and mixed with a designed proportion of water and Ca(OH) 2 agent, then about 2 g sample was weighed and loaded into a mold and pressed to pellets for subsequent experiments. The pressure was …

Metals | Free Full-Text | Investigation of Vanadium-Containing Sludge

Vanadium containing sludge is a by-product of vanadium pentoxide obtained by hydrometallurgical methods from vanadium slag that can be estimated as a promising technogeneous raw material for vanadium production. The phase analysis of vanadium-containing sludge by the X-ray diffraction method showed that it contains …

Non-isothermal Reduction Behavior and Mechanism of Hongge Vanadium

2. Experimental Section 2.1. Experimental Materials The green pellets were prepared from a mixture of HVTM with passing 0.074 mm, 8.5% water, and 1% ben-tonite in an experimental balling disc pelletizer. The green pellets produced were dried at 105°C in an oven for 5 h and roasted in a muffle furnace at a roasting temperature