1. Introduction. Vanadium titano-magnetite (VTM) is a polymetallic symbiotic iron ore primarily containing iron, vanadium, and titanium. Iron minerals and titanium-bearing minerals coexist closely, primarily in the form of the strongly magnetic titanium magnetite and weakly magnetic ilmenite; however, vanadium-bearing minerals are mostly …
Experiments were carried out by adding NaF as catalyst in a Ar atmosphere to study the isothermal reduction kinetics of vanadium titano-magnetite carbon composite pellets under high temperature in the range from1473 to 1673K. By analyzing reduction mechanism, it was...
The oxidation behaviour and the phase and microstructure evolution of VTM (vanadium titano-magnetite) pellets were studied during thermal processing in order to optimise the production method for producing high-quality pellets. The oxidation tests showed that titanium magnetite and ilmenite in VTM began to oxidise at 500°C and 700°C, …
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 mineral which primarily …
DOI: 10.1016/j.mineng.2020.106268 Corpus ID: 214010125; Influence of different comminution flowsheets on the separation of vanadium titano-magnetite @article{Guo2020InfluenceOD, title={Influence of different comminution flowsheets on the separation of vanadium titano-magnetite}, author={Xiaofei Guo and Shu Juan Dai and …
Recovering vanadium from vanadium titanium-magnetite (VTM) ore using (NH 4) 2 C 2 O 4 is a clean hydrometallurgical process, but the drawback is the low recovery and slow kinetics due to the formation of inhibitor. A novel energy-efficient mathematical model was derived for green leaching of VTM in which the mechanical activation (MA) removed the …
China Vanadium Titano-Magnetite Mining Company Limited is a Hong Kong-based investment holding company principally engaged in mining and ore processing, sale of self-produced products, trading of coals and steels, management of strategic investments and providing specialist mining services.
The characterization results for natural vanadium titano-magnetite by Liang et al. (2010) indicated that trivalent V in titano-magnetite cannot exist in the form of vanadium …
The phase transformation of pre-oxidized vanadium titano-magnetite pellets during the reduction process under an H2 atmosphere and a CO atmosphere was discussed, and the reduced samples were analyzed by scanning electron microscopy (SEM) in conjunction with back scatter electron (BSE) imaging.
The vanadium solutions may be stored in large tanks (Fig. 1; Algar, 2017), allowing the battery to be scaled up by simply building bigger tanks.A large vanadium redox battery …
ABSTRACT. In this study, a new vanadium extraction process from vanadium titano-magnetite(VTM) featuring calcification roasting and (NH 4) 2 C 2 O 4 solution leaching …
ABSTRACT In this study, a new vanadium extraction process from vanadium titano-magnetite(VTM) featuring calcification roasting and (NH4)2C2O4 solution leaching has been proposed. Compared with the traditional sodium roasting, the calcification roasting can avoid the production of waste gas and the sodium free tailings can be used for iron …
The release of V from vanadium titano-magnetite, a predominant natural source of V, was studied under light irradiation. The release rate of V from vanadium titano-magnetite was accelerated by light irradiation, and the oxidation of V was detected. The essence of the photopromoted release of V is that the immobile low valence V is transformed to the …
Reston, ia: US Geological Survey, 2017. [2] CHEN De-sheng, ZHAO Long-sheng, LIU Ya-hui, QI Tao, WANG Jian-chong, WANG Li-na. A novel process for recovery of iron, …
The results show that vanadium emissions increased by 86% from 1949 to 2005 to a historical peak value and then gradually decreased to 12.9 kt in 2017, and the comprehensive evaluation by incorporating contrastive analysis, Monte Carlo approach, and GEOS-Chem simulation shows thatVanadium emissions estimated in this study were …
1. Introduction. Vanadium (V) is a widely distributed transition metal in the lithosphere (Hao et al., 2018), which has been widely used in the steel and medicinal production (Schlesinger et al., 2017; Chen et al., 2020).Because of the increasing demand for V products, the mining and smelting of V ores lead to widespread V pollution in the soils worldwide …
The vanadium titano-magnetite is the main raw materials for producing pigment and vanadium. At the same time, many scholars have been dedicated to studying on comprehensive utilization of titanium slag to prepare titanium material (Liu et al., 2013, Zhang et al., 2007). Now, a large number of un-mined vanadium titano-magnetite with …
The release of V from vanadium titano-magnetite, a predominant natural source of V, was studied under light irradiation. The release rate of V from vanadium titano-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 ore …
Methods of chemical analysis, XRD, and pH monitoring are adopted in order to study wet extraction of Fe, V and Ti based on activated reduction, and the control conditions as well as the degree of recovery are determined. The primary-leaching in NaHCO 3 saturated solution followed by final-leaching via carbonization is possible, and the leaching ratio for …
Numerous studies have focused on the reduction thermodynamics of ordinary iron ore; by contrast, the literature contains few thermodynamic studies on the gas-based reduction of vanadium titano-magnetite (VTM) in mixed atmospheres of H 2, CO, H 2 O, CO 2, and N 2.In this paper, thermodynamic studies on the reduction of oxidized VTM pellets were …
Blast furnace–basic oxygen furnace (BF–BOF) process is the predominant method for smelting vanadium titano-magnetite (VTM) in China. Hydrogen-rich (H2-rich) gas injection in BF is considered as an important way to reduce CO2 emission under the background of low carbon metallurgy. In this paper, the softening–melting behaviors of VTM sinter in …
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 magnetite ore contained 47.58 wt% …
The vanadium titano-magnetite system's rapid electron transfer leads to the cyclic interconversion of Fe(II)/Fe(III) and facilitates the degradation of 2,4-DNT, and its degradation products go a step further classified as 2,4-dinitrobenzyl alcohol, 2,4-dinitrobenzaldehyde, and p-nitrobenzoic acid.
Therefore, the recovery of vanadium from ilmenite and magnetite is important for the production of concentrates with high vanadium quality. Download: Download high-res image (558KB) Download: Download full-size image; Fig. 1. SEM-BSE images (left) of a polished thin section of the vanadium-titanium magnetite ore used in the study.
Vanadium titano-magnetite ore is a kind of multi-elements-coexistent mineral which mainly contains V, Ti and Fe. There are approximately one billion tonnes of vanadium titano-magnetite resource sto...
The raw vanadium titano-magnetite was crushed and grinded to − 0.074 mm accounting for 90%, and then the sample was separated with low intensity magnetic separation of 50 KA/m by using dry magnetic separator to obtain the vanadium concentrate.The vanadium concentrate was leached in hydrofluoric acid solution at certain temperature, liquid to …
China Vanadium Titano-Magnetite Mining Company Limited. Address: 5th Floor, Standard Chartered Bank Building, 4-4A Des Voeux Road Central, Hong Kong. Email: [email protected] Cornerstones Communications Ltd. Address: Unit 2102, 21/F., Overseas Trust Bank Building, 160 Gloucester Road, Wanchai,
the ratio of V3+ to V4+ which will in turn affect how vanadium par-titions between magnetite and ilmenite in titanomagnetites (Schuiling and Feenstra, 1980). Vanadium …
The release of V from vanadium titano-magnetite, a predominant natural source of V, was studied under light irradiation. The release rate of V from vanadium titano-magnetite was accelerated by light irradiation, and the oxidation of V was detected. The essence of the photopromoted release of V is th …
1. Introduction1.1. Vanadium properties and applications. Vanadium is primarily used as an additive to steel in the form of ferrovanadium (Moskalyk and Alfantazi, 2003).Around 85% of the vanadium produced globally is used for this purpose (Swinbourne et al., 2016).Only minor amounts of vanadium are needed for this purpose, with vanadium …
Get China Vanadium Titano Magnetite Mining Co Ltd (0893.HK) real-time stock quotes, news, price and financial information from Reuters to inform your trading and investments ... DE 10Y: 2.424-0. ...
DOI: 10.1016/J.MINPRO.2016.09.012 Corpus ID: 100526996; Vanadium extraction from titano-magnetite by hydrofluoric acid @article{Zhu2016VanadiumEF, title={Vanadium extraction from titano-magnetite by hydrofluoric acid}, author={Xiao-bo Zhu and Wang Li and Xuemao Guan}, journal={International Journal of Mineral Processing}, year={2016}, …
ABSTRACT. Adopting conventional sintering process of vanadium-titanium magnetite concentrates has such problems as low tumbler index and RDI due to the high-TiO 2 …
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 …
1. Introduction. Titanium plays a considerably important role in the modern industry, which is widely used in aerospace, military, metallurgy, solar cell, pigment and other advanced materials fields [1], [2], [3].As one of the largest of titanium resources in the world, vanadium titano-magnetite represents a valuable raw material for the production of …
The effect of microwave treatment on the grinding and dissociation characteristics of vanadium titano-magnetite (VTM) ore were investigated using scanning electron microscopy (SEM), nitrogen absorption measurements, particle size distribution measurements, X-ray diffraction (XRD) analysis, Fourier transform infrared (FT-IR) …
Many technologies exist for the treatment of titaniferous magnetites that contain vanadium. Each process is designed based on the relative amounts of titanium, vanadium and …
Natural iron minerals and zero-valent metals have been widely tested as catalysts for the Fenton-like process, but the systematical comparison study about their catalytic performance was rarely conducted, and the risk of the secondary pollution of toxic heavy metals was still not uncertain. In this paper, a comparison study of applying pyrite, …
The global Vanadium Titano-Magnetite Mining market size is expected to reach US$ million by 2029, growing at a CAGR of % from 2023 to 2029. The market is mainly driven by the significant applications of Vanadium Titano-Magnetite Mining in various end use industries. ... 10.5.3 DE SHENG GROUP Vanadium Titano-Magnetite Mining Sales, …
