Slag-Metal Separation Behaviors of Vanadium Titanomagnetite …
Vanadium-bearing titanomagnetite ore is an important mineral resource containing vanadium, titanium, and iron . It is widely distributed around the world mainly including China, Russia, America, and North Africa [].Especially in the Panxi region of China, the proven deposits account for more than 90% of total reserves in China [2, 3].At …
Recovery of Vanadium, Titanium, and Iron from Vanadium …
In this study, an efficient utilization of vanadium titanomagnetite concentrate was systemically investigated through potassium pyrosulfate (K 2 S 2 O 7) synergized with ammonium sulfate ((NH 4) 2 SO 4) cascade roasting to separate and recover vanadium, iron, and titanium.The result shows that 95.87% of vanadium and 80.13% of iron could …
Study on diversity, nitrogen-fixing capacity, and heavy metal …
Introduction: The diversity, nitrogen-fixing capacity and heavy metal tolerance of culturable rhizobia in symbiotic relationship with Pongamia pinnata surviving in vanadium (V) - titanium (Ti) magnetite (VTM) tailings is still unknown, and the rhizobia isolates from the extreme barren VTM tailings contaminated with a variety of metals …
Reduction behaviors of vanadium‑titanium magnetite with …
The vanadium‑titanium magnetite with 67% passing 0.074 mm was taken from Chaoyang city, Liaoning province, China. The chemical compositions of vanadium‑titanium magnetite ore are presented in Table 1, which were determined by chemical methods combined with X-ray fluoroscopy (XRF).The vanadium‑titanium …
Mineralogical reconstruction of Titanium-Vanadium hematite and magnetic
1. Introduction. Titanium and vanadium are strategically important resources [1].Titanium alloys have significant application value and broad application prospects in aviation, aerospace, biomedical engineering, and other fields [2], [3].Vanadium is an indispensable element in industrial fields such as steel, nonferrous metals, chemicals, …
Overall utilization of vanadium–titanium magnetite tailings …
1. Introduction. In recent years, the recycling of waste resources and environmental management in industrial companies have attracted people's attention (Ciarapica et al., 2019).In the Panzhihua area of southwestern China, a large number of vanadium–titanium magnetite tailings (VTMT) are generated in the selection process …
Phase transformation and slag evolution of vanadium–titanium magnetite …
Blast furnace process is the main approach for utilizing vanadium–titanium magnetite (VTM) and VTM pellet is an important burden due to its excellent performance. In this paper, the softening–melting behavior of VTM pellets was investigated. The softening, melting temperature interval and permeability index were obtained as 75 °C, …
Optimized magnetic separation for efficient recovery …
We present an optimized magnetic separation process to improve the recovery of high-content vanadium and titanium concentrates from vanadium‑titanium …
Enrichment and reconfiguration of titanium-bearing phase …
The reserves of vanadium–titanium magnetite exceed 18 billion tons [], accounting for over 90 wt.% of China's titanium resource reserves [2, 3].At present, the blast furnace method of smelting vanadium–titanium magnetite only recovers Fe and a part of V [].Due to the low titanium content [5, 6] and the difficulty in dissociating the Ti …
Experimental Study on Oxygen-Enriched Sintering of Vanadium-Titanium
The influences of various factors, such as oxygen enrichment time, oxygen enrichment load, and ignition temperature, on the technical indices and sintering performance in the vanadium-titanium magnetite sintering process are simulated using sinter pot experiments. The experiments are based on the field production parameters of …
Three Types Of Vanadium Ore Beneficiation Methods
1. vanadium-titanium magnetite ore. Magmatic vanadium-titanium magnetite ore is the main resource of titanium and vanadium in my country. The main useful minerals in the ore are titanomagnetite and ilmenite, which are mainly distributed in medium grains; gangues are mainly silicate minerals, and some also have carbonate …
Development process and trends of vanadium extraction from vanadium
The development process and current situation of vanadium extraction from vanadium-titanium magnetite ore were introduced in the paper.The advantages,disadvantages,main process parameters and technical indexes of vanadium extraction process were represented,too.Aiming at the typical disadvantage of present vanadium extraction …
Mineralogical reconstruction of Titanium-Vanadium …
In this paper, magnetization roasting - low-intensity magnetic separation was performed on a pre-concentration concentrate obtained from an Australian hematite …
Phase transformation and slag evolution of …
Abstract. Blast furnace process is the main approach for utilizing vanadium–titanium magnetite (VTM) and VTM pellet is an important burden due to its …
High-Efficiency Smelting Separation of …
Quan Shi, Jue Tang & Mansheng Chu. 210 Accesses. 1 Citation. Explore all metrics. Abstract. Efficient utilization of vanadium–titanium magnetite can be achieved …
Multiple heavy metal distribution and microbial community
Vanadium-titanium (V-Ti) magnetite tailings have caused great concern due to their safety hazards and environmental risks. However, the microbial community structure and the key geochemical ...
Preparation, Sintering Behavior and Consolidation Mechanism of Vanadium
High-quality oxidized pellets are the basis to achieve high-efficiency utilization of vanadium–titanium magnetite (VTM) ores. Bentonite was used as a binder of VTM. The main phase composition of VTM is titanomagnetite and ilmenite. When the amount of bentonite is 1%, the compressive strength and dropping strength of VTM …
Assembly processes and ecological dynamics of root
1. Introduction. Vanadium-titanium magnetite (V–Ti) mine tailings are the mining residues following the extraction of valuable metallic segments from the magnetite (iron ores) (Ju et al., 2021).The disposal of substantial quantities of these tailings is typically achieved through deposition into impoundments, nestled within mountainous terrains …
Enhancing Reduction Separation and Efficient Recovery of Iron, Vanadium
Materials. Table I shows the chemical composition of the ultra-high-titanium vanadium–titanium magnetite concentrate (<75 μm) used in the experiment. The data clearly reflect the mine's low-iron, high-vanadium, and ultra-high titanium characteristics. The X-ray diffraction (XRD) pattern of the raw ore in Figure 1 shows that the phases of …
Effects of Cr2O3 on Metallurgical Properties of High Chromium Vanadium
High chromium vanadium-titanium magnetite (HCTVM) is a valuable multi-metallic iron resource. The development of HCTVM flux pellets is a feasible way to promote clean production and reduce consumption in blast furnaces. This study investigated the effects of Cr2O3 on the metallurgical properties of HCTVM flux pellets …
Influence of different comminution flowsheets on the …
Midi concentrator is one of the most typical VTM beneficiation plant in Panzhihua area. Its technological process (Fig. 1) chiefly include stage grinding and stage separation (Kothari, 1974, Bulatovic and Wyslouzil, 2009).Titanium magnetite ores (FeO·FeTiO 3) are generally separated by stage grinding and stage magnetic …
Kinetics and mechanism of coal-based direct reduction of
High-chromium vanadium–titanium magnetite (HCVTM) is a valuable resource containing metal elements such as iron, vanadium, titanium, and chromium. To recycle these elements, direct reduction is an efficient way. The mechanism and reaction kinetic parameters for the direct reduction of HCVTM were studied. Experimental results …
Characterization and Pre-Concentration of Low-Grade Vanadium-Titanium …
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 …
Study on Sintering Characteristics of Ultra-Poor Vanadium-Titanium …
Artificial rich ore for blast furnace use can be produced by sintering ultra-poor vanadium-titanium magnetite (PVTM) with a high-grade iron concentrate. Here, acid (R = 0.33, 0.50), self-fluxing (R = 1.10), and high-basicity (R = 2.60) PVTM sinters were produced in a sinter pot. Their performances were determined using the comprehensive …
Separations | Free Full-Text | Separation of Ilmenite …
Vanadium titanomagnetite (VTM) is an important mineral for developing titanium resources, but the comprehensive recovery of ilmenite separation is extremely poor, …
Evaluation of Titania-Rich Slag Produced from Titaniferous Magnetite …
Titanium-bearing magnetite ore is generically defined as magnetite with > 1% titanium dioxide (TiO 2) and is usually vanadium-bearing.The iron and titanium occur as a mixture of magnetite (Fe 3 O 4) and ilmenite (FeTiO 3) with vanadium oxide usually occurring within the solid solution of the titanium-bearing magnetite phase.These ores …
High-Efficiency Smelting Separation of Vanadium–Titanium Magnetite …
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 …
Partition of valuable components between slag and metal
These are ordinary vanadium-titanium magnetite and high-chromium vanadium-titanium magnetite (HCVTM), according to the mass fraction of Cr 2 O 3, and the determining criterion of the mass ...
Titaniferous Magnetites as a Source of Vanadium, …
Titaniferous magnetite hard rock deposits are common throughout the world. Previously they have been processed to recover vanadium using the standard salt roast process, however the economics based on vanadium alone can be marginal due to the high CAPEX and OPEX, making it vulnerable in a volatile vanadium market. New Zealand Steel
Extractive metallurgy of vanadium-containing …
Many technologies exist for the treatment of titaniferous magnetites that contain vanadium. Each process is designed based on the relative amounts of titanium, …