A comprehensive review of the heavy metal issues regarding …
The cost of the commercial vanadium‑titanium-based catalyst is typically accounting for 20 %–50 % of the initial investment for SCR system, so catalyst regeneration can save considerable acquisition expenses while avoiding the disposal of the hazardous discarded catalysts (Hou et al., 2021). Considering the environmental impact and …
Simultaneous extraction of vanadium and titanium from vanadium …
In China, vanadium slag, a by-product of vanadium-titanium magnetite in the converter steelmaking process, is a typical vanadium metallurgical raw material, ... of only 300–400 °C), and environmental friendliness (ammonium sulfate is a recyclable extractant), especially in dealing with low-grade symbiotic minerals [16, 17].
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 …
Enrichment and reconfiguration of titanium-bearing …
Abstract. To comprehensively utilize the low-iron high-vanadium–titanium magnetite, a new method of vortex smelting reduction of vanadium–titanium magnetite …
Present Status and Development of Comprehensive …
Blast furnace iron making process is one of the earliest methods to utilize titanium iron concentrate. In the process, almost all of the titanium goes into the blast furnace slag, vanadium is reduced into the molten iron. After iron extraction, it produces a large quantity of titanium-containing blast furnace slag with a TiO2 content of 20%25 wt%.
Extraction of vanadium and enrichment of titanium …
Generally, vanadium‑titanium magnetite concentrate including Fe of 30%, TiO 2 of 10%, and V 2 O 5 of 0.3% is smelted by using blast furnaces. Metal iron is …
Efficient Separation and Recovery of Vanadium, …
In this study, a method for recovery of vanadium, titanium, iron, magnesium, and synthesizing anhydrite from steel slag is proposed. The leaching …
Metals | Free Full-Text | Vanadium–Titanium …
Vanadium and titanium magnetite is the main raw material for vanadium production, and there are currently two main methods of extracting vanadium from it . One method obtains vanadium from …
Smelting Reduction Characteristics and Mechanism of …
of vanadium–titanium magnetite in the existing smelting process. The process is composed of two parts: the pre-reduction process of vanadium–titanium magnetite in the rotary kiln and the slag–iron separation process in the pure oxygen bath smelting furnace. Firstly, a certain proportion of vanadium–titanium magnetite, coal and fluxes ...
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 …
Efficient separation of vanadium, titanium, and iron …
Efficient separation of vanadium, titanium, and iron from vanadium-bearing titanomagnetite by pressurized pyrolysis of ammonium chloride-acid leaching …
COMPARISON OF SEVERAL TYPICAL PROCESSES …
This article introduces the direct reduction processes to recover valuable elements from the vanadium titanium ore,providing references for the utilization of the vanadium …
Separations | Free Full-Text | Process Mineralogy of …
The present study characterizes the compositions, ore textures, minerals, and particle size of the VTM in the Panzhihua region using a variety of techniques, including MLA, EPMA, SEM, …
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 …
Effect of TiO2 on the Sintering Behavior of …
The sintering pot test was used to investigate the effect of TiO2 on the sintering behavior of chromium-bearing vanadium–titanium magnetite (CVTM) sinter. The main characterization methods of X-ray …
Separations | Free Full-Text | 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 reserves of the VTM ore are extremely rich (over 40 billion tons) and are mainly distributed in Russia, South Africa, China, the United …
A novel process for the recovery of iron, titanium, and vanadium …
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 ...
Study on Utilization Technology of Vanadium Titanium Magnetite …
Through carrying out large scale of experiments, the process of 'rotary harth furnace direct reduction—deep reduction electric arc furnace—extracting vanadium from vanadium bearing slag—extracting titanium from titanium bearing slag gets through and the recovery of Fe, V and Ti reached 90.77%, 43.82% and 72.65% respectively. With the study on the …
Recovery of Vanadium, Titanium, and Iron from …
3 Citations. Explore all metrics. Abstract. In this study, an efficient utilization of vanadium titanomagnetite concentrate was systemically investigated through …
Hydrogen retention by vanadium-titanium alloys
Hydrogen retention in vanadium and its binary alloys with titanium are investigated by means of hydrogen thermal desorption spectrometry. The samples are saturated with hydrogen for 2000 h at a temperature of 620 K in an autoclave, where hydrogen is fed at a pressure of 16.8 MPa. It is shown that in V-Ti alloys there are two …
The 11 Best Vanadium Stocks To Buy Now
Tivan LTD (OTCPK: TNGZ.F) Formerly known as TNG limited, Tivan Limited is a mining company with exploration rights in Australia. The Australian resources company is primarily interested in the mining of iron, nickel, vanadium, and cobalt deposits. The company is proud of its vanadium-titanium project on Mount Peake.
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 was …
Isothermal reduction kinetics and mineral phase of …
Reduction of chromium-bearing vanadium–titanium sinter (CVTS) was studied under simulated conditions of a blast furnace, and thermodynamics and kinetics were theoretically analyzed. Reduction kinetics of CVTS at different temperatures was evaluated using a shrinking unreacted core model. The microstructure, mineral phase, …
Study on Reduction Disintegration of Sinter from
J. Qin, G.G. Liu, Z.J. Li, et al, "Comparison of Several Typical Processes for Dealing with Vanadium Titanium," Mining and Metallurgy, 23(4) (2014), 79–82. ... "Influence of Microstructure and Mimerai Composition of Vanadium-titanium Sinter on its RDI" Iron Steel Vanadium Titanium, 31(2) (2010), 58–62.
Vanadium-titanium | TiV | CID 57464778
Vanadium-titanium | TiV | CID 57464778 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities ...
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 …
Smelting Reduction Characteristics and Mechanism of Vanadium–Titanium
The calcium hydroxide (Ca(OH) 2) was used as fluxes to adjust the basicity of vanadium–titanium magnetite carbon-bearing pellet.Its purity was 95%. 2.3 Smelting Reduction Experimental Method of Vanadium–Titanium Magnetite Carbon-Bearing Pellet. Firstly, a certain amount of vanadium–titanium magnetite, coal and Ca(OH) 2 …
Rhizobia population was favoured during in situ
Seedlings of Pongamia pinnata were routinely germinated and maintained under greenhouse conditions (Yu et al., 2016) prior to the field application on the vanadium-titanium magnetite tailings dam (26°36′59.8″N, 101°58′11.1″E) at Xinjiu township, 40 km northeast of Panzhihua city. Soil samples before, after one and two years ...
Vanadium | Facts, Industrial, Medical, & Automotive …
Agency for Toxic Substances and Disease Registry - Vanadium (Apr. 05, 2024) vanadium (V), chemical element, silvery white soft metal of Group 5 (Vb) of the periodic table. It is alloyed with steel and iron for high-speed tool steel, high-strength low-alloy steel, and wear-resistant cast iron. Vanadium was discovered (1801) by the …
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 …
