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, resulting in the low-efficiency utilization of titanium …
Smelting Vanadium–Titanium Magnetite by COREX Process …
The slag ing caused by Ti(C,N) is the main limitation of smelting vanadium–titanium magnetite by blast furnace. COREX, with unique pure oxygen injection that avoids the formation of Ti(C,N), has a huge potential advantage for the smelting of vanadium–titanium magnetite. In the present study, the detailed …
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.
Optimized magnetic separation for efficient recovery …
Since vanadium exists in ilmenite (see Fig. 1 and Table 2), the rapid increase of titanium grade and recovery rate (i.e., high phase content of ilmenite) at a high …
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 …
Metals | Free Full-Text | Vanadium–Titanium …
This paper investigated a pellet ore production process in which vanadium was extracted from vanadium and titanium magnetite concentrates using sulfuric acid leaching. Calcium and magnesium were …
Smelting Vanadium–Titanium Magnetite by OY Furnace: …
The key to smelting vanadium–titanium magnetite is to prevent the over-reduction of TiO 2 and reduces the formation of TiC or Ti(C,N), which are the main driving force that causes slag thickening and ing, and further deteriorates the bed permeability.
Overview of Global Vanadium-titanium Magnetite …
This is an essay in the field of mineral engineering. This paper summarizes the distribution of vanadium titanium magnetite in the world and its comprehensive utilization progress. vanadium titanium magnetite is a composite ore of iron, titanium and vanadium, which is also associated with chromium, gallium, scandium, cobalt, nickel, copper, platinum group …
Heterogeneous degradation of bisphenol A by
The vanadium-titanium magnetite (VTM) has a high comprehensive utilization value because it is an important source of iron (Fe) and other elements such as titanium (Ti) and vanadium (V). In this study, VTM was first used as a PMS activator to evaluate the degradation of bisphenol A (BPA) in the aqueous solution. ...
Phase Evolution Behavior and Oxidation Induration …
The quality of vanadium–titanium magnetite sinters is poor. The high-pellet operation of the blast furnace ironmaking process is a feasible method for utilization of the High-chromium Vanadium–titanium magnetite (HVTM). To ensure the basicity of the burden, flux pellets need to be investigated. In this study, HVTM concentrate and CaCO3 …
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 factors of V-Ti magnetite tailing profiles under different management modes remain unclear. Therefore, we investigated the heavy metal …
Mineralogical reconstruction of Titanium-Vanadium hematite …
As the vanadium in vanadium-titanium magnetite is mainly concentrated in the titanomagnetite as an isomorphism, the vanadium in the weakly magnetic iron ore containing vanadium and titanium mainly occurs in iron ore. Therefore, regardless of ore type, it is difficult to effectively separate vanadium and titanium using the existing …
Extraction of titanium, vanadium and iron from
High-chromium vanadium-titanium magnetite is a complex multi-metal associated resource, which contains metal elements such as iron, vanadium, titanium, and chromium, and has a high comprehensive utilization value [1–3]. High-chromium vanadium-titanium magnetite is also a type of unmanageable ore [4,5], which contains more than …
Study of the High Temperature Metallurgical Properties of …
In China, two typical vanadium–titanium magnetite ores were used as raw materials in iron making. In order to obtain the differences in the high temperature metallurgical properties of these ores, the phase and microstructure of on-site sinter, pellet, slag and laboratorial non-dripped slag were analyzed by XRD and SEM–EDS. The …
Efficient Extraction of Vanadium from …
In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate. Meanwhile, the mechanisms of potassium salt roasting and acid leaching kinetics …
A novel chitosan-vanadium-titanium-magnetite composite …
In this research, a novel chitosan (CS)-vanadium-titanium-magnetite (VTM) composite was designed and synthesized. The interaction between CS-VTM and Congo red (CR) dye conformed to a pseudo-second-order model to support the potent involvement of chemisorption. The effects of adsorbent dosage, reaction temperature, and initial solution …
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 …
The extraction of vanadium from titanomagnetites and other sources
Likewise, much of the vanadium in titanomagnetite ores is associated with magnetite, with ilmenite containing relatively small amounts of the vanadium present in such ores. However the liberation size of titanium mineralisation in these deposits can be as low as 5 µm, with fine laths of titanium minerals included in iron minerals ( Taipale ...
Overall utilization of vanadium–titanium magnetite tailings …
Vanadium–titanium magnetite tailings (VTMT) are a common industrial waste in China, which are harmful to the environment and economic development. The efficient utilization of this industrial waste is urgently needed. Herein, ceramics were successfully prepared as partition materials using VTMT as the main raw material. In this …
Integrated Utilization of Vanadium-Titanium Magnetite …
Lightweight ed ceramics were prepared using 55 wt.% vanadium-titanium magnetite tailings (VTMT) followed by sintering at 1130 °C. In the CaO-MgO-SiO2-Al2O3 ed ceramic quaternary system, the CaO and SiO2 components play an important role in adjusting material properties and controlling phase transition. In this …
Process Mineralogical Analysis of a Typical Vanadium Titano-magnetite …
The concentrate is classified as high-vanadium vanadium titano-magnetite concentrate, containing 51.64% iron, 12.96% titanium, and 1.52% vanadium. The extraction of vanadium from this type of VTM typically involves wet metallurgical processes to extract vanadium first, followed by pyrometallurgical processes to recover molten iron …
Thermodynamic Calculations on Direct Reduction of …
Vanadium-titanium magnetite is a complex mineral, and distributes widely throughout the world, mainly concentrated in Russia, China, South Africa, New Zealand, Canada and Australia [].The Pan-xi area of China has rich vanadium-titanium magnetite deposits with reserves more than 9.66 billion tons, of which titanium and vanadium …
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 …
Present Status and Development of Comprehensive Utilization of Vanadium
The main products of vanadium-titanium magnetite beneficiation are titanium iron concentrate (iron ore) containing about 50% of titanium in V-Ti magnetite, ilmenite concentrate containing about 50% of titanium, and cobalt sulfide concentrate [1,2,3,4].Titanium iron concentrate is mainly used for iron making through blast furnace …
High-Efficiency Extraction of Fe, V, and Ti from …
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 …
High-Efficiency Smelting Separation of …
The experimental results show that maintaining a certain carbon content in the reduction products of vanadium–titanium magnetite is conducive to the reduction of …
Preparation of titanium mineral from vanadium …
A novel process for recovery of iron, titanium, and vanadium from titano- magnetite concentrates: NaOH molten salt roasting and water leaching processes [J] Journal of Hazardous Materials, 244/245 (2013), pp. 588-595. View PDF View article View in Scopus Google Scholar. 3.
Optimized magnetic separation for efficient recovery of V …
They reported that a vanadium‑titanium magnetite concentrate containing 1.14% V 2 O 5, 22.22% TiO 2, 42.51% Fe, and a concentrate of ilmenite containing 16.05% TiO 2 and 20.77% Fe were obtained according to the different magnetic intensities in the range of 0.4–0.8 T. However, because there is no explanation for the vanadium …
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 …
Multiple heavy metal distribution and microbial community
As a multi-metallic iron-based ore, vanadium-titanium (V-Ti) magnetite has huge reserves in China, with a mineable grade of 9.83 billion tons (Li et al., 2018). A large amount of V-Ti magnetite tailings have been generated in the selection process of Fe concentrate, with an accumulated storage of about 570 million tons in the Panzhihua …