آخرین محصولات
Research progress of vanadium extraction processes from vanadium …
In the sulfuric acid leaching process, in addition to vanadium leaching, chromium, titanium, iron, manganese and aluminum in the vanadium slag will also be leached into the solution. Direct acid leaching can avoid the production of Cl 2, HCl and SO 2 which are seriously polluted to the environment.
Selective nitridation–corrosion process to recover vanadium, titanium …
During the BOF process, both V and Cr are oxidized into spinel phases (FeV 2 O 4 and FeCr 2 O 4) by forming vanadium-bearing steel slag (V-slag) (Teng et al., 2019; Ning et al., 2014). To date, sodium roasting–water leaching and calcification roasting–acid leaching techniques are the dominant industrial processes for V extraction from V-slag.
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 value.
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 …
Efficient Recovery of Vanadium and Titanium from …
1. Introduction. Vanadium and its compounds have been used widely in a variety of important fields, mainly in: steelmaking, petrochemical industry, non-ferrous alloys, chemical production, and batteries [1,2,3,4,5,6].Recently, the increasing global consumption of vanadium is not only derived from the necessity of strength improvement in stainless steel and vanadium-titanium …
(PDF) FEASIBILITY OF FLUXLESS SMELTING OF …
Titaniferous magnetite deposits contain iron, vanadium and titanium, but only iron and vanadium are routinely recovered, usually via a pyrometallurgical process during wich the titania is ...
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 ammonium sulfate ((NH4)2SO4) cascade roasting to separate and recover vanadium, iron, and titanium. The result shows that 95.87% of vanadium and 80.13% of iron could be extracted, while that …
An effective and cleaner process to recovery iron, titanium, vanadium
Vanadium titanomagnetite (VTM) is a multi-element mineral that is distributed throughout the world [1–3].In the Panxi-Hongge district in China, there are more than 3.55 billion tons of VTM resources [].Hongge vanadium titanomagnetite (HVTM), as one of the mine areas in Panxi-Hongge district, is rich in valuable elements including iron, titanium, vanadium, and …
(PDF) Improvement in vanadium-containing titanomagnetite processing …
In titanomagnetite, a small amount of vanadium and chromium exist simultaneously by substituting titanium [3]. After the beneficiation process of VTM, the obtained titanomagnetite concentrate is ...
Optimized magnetic separation for efficient recovery of V …
In contrast, VTM is a multi-metallic iron-based ore containing iron, titanium, and vanadium as the main constituents [24, 25].Since VTM has a high iron and titanium content, many recovery studies have been conducted from the viewpoint of developing processes for titanium enrichment [26, 27].Studies on the beneficiation process for recovering vanadium …
Unlocking Value: The Economic Potential of Iron-Titanium-Vanadium …
Iron-titanium-vanadium projects offer significant economic possibilities through resource exploration, mining operations, and downstream processing activities. These projects stimulate economic growth by generating employment possibilities, attracting investments, and fostering local economic development in regions abundant in mineral resources.
Process Mineralogy of Vanadium …
Vanadium titanomagnetite (VTM) is a valuable multi-element symbiotic ore mainly composed of iron, vanadium, and titanium, as well as small amounts of chromium, nickel and cobalt [1,2,3].The global resource …
A Novel Process for Simultaneous Extraction of Iron, …
In the present work, a novel process for simultaneous recovery of iron, vanadium, titanium, chromium, and manganese from vanadium slag is proposed including the …
Wettability and corrosion behavior between alkaline slag …
The sodium smelting of vanadium–titanium magnetite can achieve the comprehensive utilization of Fe, V, and Ti. However, the generation of alkaline slag during this process may cause damage to refractory materials. The wettability and corrosion behavior of alkaline slag on three types of refractory (MgO–C, SiC, and high alumina refractory) substrates …
Efficient Separation and Recovery of Vanadium, Titanium, Iron
The dumping of a large amount of steel slag not only wastes metal resources, but pollutes the ecological environment. In this study, a method for recovery of vanadium, titanium, iron, magnesium, and synthesizing anhydrite from steel slag is proposed. The leaching efficiency of V, Ti, Fe, and Mg was 99.42%, 99.36%, 99.89%, and 99.95%, respectively, under a H2SO4 …
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 sodium oxidation of vanadium …
Separation and Recovery of Vanadium(IV), Iron, and …
This study addressed the separation and recovery of vanadium(IV), iron, and titanium from synthetic and real leach solutions of vanadium-bearing titanomagnetite using …
Extraction of titanium, vanadium and iron from titanomagnetite …
A process has been developed at the laboratory scale for the recovery of titanium, vanadium and iron from the vanadium bearing titanomagnetite deposit at Pipestone Lake, Manitoba, by combined pyro- and hydrometallurgical processing route.
Experimental Research on Comprehensive Recovery of Iron and Titanium
For comprehensive recovery and utilization of low grade vanadium titanium magnetite ore, detailed experimental research were carried out. When using the beneficiation process com-bined with dry discarding of tailings, stage grinding and stage separation, the qualified iron concen-trate with a yield of 13. 65%,TFe grade of 54. 14% and recovery rate of …
Separation and Recovery of Vanadium(IV), Iron, and …
process in this study for extraction and separation of vanadium, iron, and titanium using a mixture extractant of P204 and P507 was proposed. The inuences of the P204-P507 concentra-tion, P204 and P507 ratio, initial pH, phase ratio (O/A), and contact time on the extractions of vanadium, iron, and titanium were investigated.
Titaniferous Magnetites as a Source of Vanadium, …
The process leaches titanium, vanadium and iron using hydrochloric acid at atmospheric pressure and temperatures below 95°C. Solvent extraction is then used to recover vanadium, titanium pigment and iron from the leach solution. The …
Remediation of the vanadium slag processing residue and recovery …
To remediate the VSPR and recover the valuable elements including iron, chromium, vanadium and titanium, a novel process, i.e., "carbothermic reduction"-"magnetic separation"-"sulfuric acid leaching"-"solvent extraction", is proposed in this work. ... The transfer of iron, chromium, vanadium, and titanium in this process was ...
A novel process for recovery of iron, titanium, and vanadium …
A novel process for recovering iron, titanium, and vanadium from titanomagnetite concentrates has been developed. In the present paper, the treatment of rich …
Optimized magnetic separation for efficient recovery of V …
We present an optimized magnetic separation process to improve the recovery of high-content vanadium and titanium concentrates from vanadium‑titanium magnetite …
A novel process for recovery of iron, titanium, and vanadium …
A novel process for recovering iron, titanium, and vanadium from titanomagnetite concentrates has been developed. In the present paper, the treatment of rich titanium–vanadium slag by NaOH molten salt roasting and water leaching processes is …
Selective nitridation–corrosion process to recover vanadium, titanium …
Request PDF | Selective nitridation–corrosion process to recover vanadium, titanium, chromium, and iron from vanadium slag | Vanadium slag (V-slag) is an important secondary V source, but other ...
A Novel Process for Simultaneous Extraction of Iron, Vanadium
Disposal of slags from alloy steelmaking is a serious problem as the toxic metals in the slag such as chromium and vanadium can be leached out. Recovery of the valuable metals needs an effective, economically viable method with a minimum number of unit processes. In the present work, a novel process for simultaneous recovery of iron, vanadium, titanium, …
Separation and recovery of iron and titanium from oxidized …
Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite (VTM). The …
Effect of Na2S Addition on Vacuum Carbon-Thermal …
China's titanium resources are primarily found in primary vanadium-titanium magnetite. The grade of ilmenite concentrate obtained after mineral processing is low with high calcium and magnesium impurity, making it difficult to reduce. This leads to high energy consumption and poor product quality during electric furnace smelting. Therefore, this paper …
Processing of vanadium: a review
The ubiquitous vanadium is employed in a wide range of alloys in combination with iron, titanium, nickel, aluminum, chromium, and other metals for a diverse range of commercial applications extending from train rails, tool steels, catalysts, to aerospace. ... the major enterprises active in the mining and processing of vanadium-bearing raw ...
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