Thus, metallic iron and non-magnetic vanadium-rich titanium material are obtained by magnetic separation [14]. Nevertheless, the high content of titanium in iron concentrates is not conducive to the direct production of steel by pyrometallurgy. Besides, the method needs to achieve a metallization rate of more than 90% for the reduced …
The aim of the present work is to investigate the influence of vanadium substitution on the structural and magnetic properties of Li –Zn – Ti ferrites. 2. Experimental details The ferrite samples with the representative formula Li0.5 + tZn0.2Ti0.2VtFe2.1 2tO4 (t ranging from 0 to 0.25 in steps of 0.05) were prepared by the conventional ...
The results show that high chromium vanadium-titanium magnetite sinter is mainly composed of magnetite, hematite and a small amount of calcium ferrite and silicate, while high titanium vanadium ...
High-chromium vanadium–titanium magnetite (HCVTM) is a good valuable resource with high iron content in the form of complex iron ore which contains various valuable metal elements such as iron, vanadium, titanium, chromium. ... Fe/TiO 2 was upgraded about to 7.06 in the magnetic fraction of reduced lump ore which was formerly …
The proposed magnetic roasting technology provides a new idea and method for the separation of vanadium and titanium from hematite containing vanadium and …
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 …
The experimental results show that maintaining a certain carbon content in the reduction products of vanadium–titanium magnetite is conducive to the reduction of …
The susceptibility measurements on titanium are on the caesium alum, which is of a somewhat different variety, i.e., Lipson and Beevers' "β‐type," but the only important change is in the fourth‐ rather than second‐order terms coming from the distant atoms, and the fourth‐order portion is significant only for the V rather than Cr ...
of 85.49% were obtained when the vanadium-titanium magnetite concentrate was reduced for 100 min at 1623 K with a C/O molar ratio of 2.5 and 8% CaCO 3, followed by separating at a magnetic field
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, reacti …
At present, the methods of comprehensive utilization of vanadium-titanium magnetite tailings are mainly divided into two categories: tailings reseparation (Valuable metal recycling) and overall utilization. According to the nature and composition of the tailings, in the tailings reseparation uses gravity separation, magnetic separation, …
Vanadium-titanium magnetite (VTM) is the main r aw mat erial for V product s, where approximately 16% of V p roducts are deriv ed fr om VTM and 68% …
Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite (VTM). The effects of reduction temperature, gas composition, reduction time, grinding fineness, and magnetic field intensity on the efficiency of Fe-Ti separation were …
Coal-based reduction and magnetic separation behavior of low-grade vanadium-titanium magnetite pellets were studied in this paper. It is found that the metallization degree increased obviously with an increase in the temperature from 1100 °C to 1400 °C. The phase composition transformation was specifically analyzed with X-ray …
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 …
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 …
A vanadium-titanium magnetite concentrate with 1.14% V2O5, 22.22% TiO2, 42.51% Fe and a rough concentrate of ilmenite with 16.05% TiO2, 20.77% Fe were obtained from low-grade vanadium-titanium ...
It oxidizes readily about 933K. There are two naturally occurring isotopes of vanadium, and 5 radioisotopes, V-49 having the longest half-life at 337 days. Vanadium has nuclear applications, the foil is used in cladding titanium to steel, and vanadium-gallium tape is used to produce a superconductive magnet.
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 …
We present an optimized magnetic separation process to improve the recovery of high-content vanadium and titanium concentrates from vanadium‑titanium …
A new process of extracting titanium from vanadium–titanium magnetite (VTM) in the Panxi area in Sichuan, China is introduced in this work. Various experiments, including …
Semantic Scholar extracted view of "Mineralogical reconstruction of Titanium-Vanadium hematite and magnetic separation mechanism of titanium and iron minerals" by Wenbo Li et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 217,789,668 papers from all fields of science ...
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 …
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 …
1. Introduction. Vanadium (V) and titanium (Ti) are important strategic metals, which are widely used in metallurgical industry, chemical industry, machinery manufacturing, battery, aerospace, etc. [[1], [2], [3], [4]].As a representative resource for extracting V and Ti, vanadium–titanium magnetite (VTM) is a polymetallic symbiotic …
ultra-high-titanium vanadium–titanium magnetite con-centrate (<75 lm) used in the experiment. The data clearly reflect the mine's low-iron, high-vanadium, and ultra-high titanium characteristics. The X-ray diffrac-tion (XRD) pattern of the raw ore in Figure 1 shows that the phases of the concentrate are mainly magnetite
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 …
A new process comprising metallizing reduction, magnetic separation, and electroheat melting separation is proposed with the aim of achieving high recoveries of iron, vanadium, and titanium from ...
Metalizing reduction and magnetic separation of vanadium titano-magnetite based on hot briquetting Shuang-yin Chen and Man-sheng Chu School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China ... agglomerates is 1480 N, and the recovery ratios of iron, vanadium, and titanium are as high as 91.19%, 61.82%, and …
XRD patterns for vanadium-titanium magnetite. ISIJ International, Vol. 58 (2018), No. 4. was shown in Figs. 5–6. In the shaded area, metal and slag can be well separated. Figure 5 shows that when the ratio of carbon is 2.0 to 2.8 and the content of NaOH is 30% to 45% at 1 473 K, metal and slag can be well separated.
Enhancing Reduction Separation and Efficient Recovery of Iron, Vanadium, and Titanium for Ultra-High-Titanium Magnetite. Original Research Article. Published: …
This paper proposes a new technique for preparation of high-grade titanium slag from Panzhihua vanadium titanomagnetite concentrate by reduction–melting–magnetic separation processing. Chemical analysis, x-ray diffraction, and scanning electron microscopy in conjunction with energy-dispersive spectroscopy …
The oxidation roasting of vanadium–titanium magnetite (VTM) pellets with a new composite binder was investigated using a pilot-scale straight-grate. The evolution of the chemical and phase composition, the compressive strength, and the metallurgical properties of the fired VTM pellets were investigated. Under a preheating …
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%, …
This article presents a new method to extract iron, titanium, vanadium, and chromium from high-chromium vanadium-bearing titanomagnetite concentrates, which are widely distributed in China. The method involves selective reduction, magnetic separation, and leaching processes. The advantages and limitations of this method are compared …
1. Introduction. 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 …
Vanadium improves the strength of titanium, and vanadium-titanium alloys have been used in the construction of aircraft.
Abstract. A kind of vanadium-substituted Keggin type polyoxometalate Na 7 [CoW 11 VO 40]·16H 2 O doped magnetic carbon nitride (CoWV/mCN) have been prepared by simple dipping method. Hybrid CoWV/mCN has been characterized by SEM, EDS and FTIR. The photocatalytic oxidation property has been inspected by degradation …