images of vanadium titano magnetite processing

Publish Date: 25 April 2021. Abstract. 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 ...

the reduction of vanadium titano-magnetite were studied. 2. Experimental 2.1. Raw materials The vanadium titano-magnetite concentrate used in this study was obtained from the Panxi area of China. The chemical composition and XRD pattern of the sample are given in Table 1 and Fig. 1, respectively. As evident in Fig. 1,

Here, we selected a 48-year vegetation restoration chronosequence in the Majiatian vanadium titano-magnetite tailings reservoir in Panzhihua City, Southwest China, to explore the bio-accessibility of V in the soils by using the DGT technology, and the resupply capacity of V from the soils was then evaluated by the DIFS model.

PDF | On Nov 18, 2021, Liwei Liu and others published Recovery of Fe and V via selective reduction–magnetic separation of vanadium-titanium magnetite concentrate | Find, read and cite all the ...

Abstract. 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 …

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 …

(a) FT-IR spectra of vanadium titano-magnetite before and after the reaction; (b) XRD pattern for vanadium titano-magnetite. As shown in the X-ray diffraction (XRD) image ( Fig. 6 b), Fe 2 O 3, TiO and V 2 O 5 accounted for 75.9 %, 11.8 % and 12.3 %, respectively, which indicated that Fe, Ti and V are the most abundant elements in VTM.

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 …

A reducing roast process has been shown to be effective for separating iron from vanadium, titanium and chromium in titanomagnetites, enabling the production of …

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 ...

Introduction. Vanadium titano-magnetite (VTM) is a typical resource in China. The reserves of VTM are approximately ten billion tons in the Panzhihua-Xichang region of China in which V and Ti account for 11.6% and 35.2% of the world reserves, respectively (Ping et al., 2011; Wang et al., 2008a; Wang et al., 2008b; Zheng et al., 2016).

Vanadium titano-magnetite is an important iron ore resource containing iron, vanadium and titanium. Although iron and vanadium can be recovered by the traditional blast furnace process, titanium can only be stored in the form of TiO2 bearing slag, which resulting in a great waste of titanium resources.

The results showed that 73.52% of feed ore were directly discarded for reducing the processing capacity of follow-up processing. A vanadium-titanium magnetite concentrate with 1.14% V2O5, 22.22% ...

The previous research (Gan, 1997) has shown that the permeability of the burden could be deteriorated with the vanadium titano-magnetite added, resulting in a very high pressure at high temperatures. The Ti(C,N) could be generated in the reduction process, which caused the liquid slag sticky and the separation of liquid slag and iron …

Low grade P-Containing vanadium titano-magnetite tailings from iron and titanium separation in the Miyi Region were treated using a direction flotation process. The separation indexes of phosphorous concentrate with a P 2 O 5 grade of 31.25% and P 2 O 5 recovery of 87.94% were obtained, realizing the recovery of valuable element phosphorous.

Published: 17 July 2023. Volume 9, pages 1126–1138, ( 2023 ) Cite this article. Download PDF. Quan Shi, Jue Tang & Mansheng Chu. 210 Accesses. 1 Citation. Explore all …

The oxidized VTM pellets were prepared as follows. Vanadium titano-magnetite concentrate (<0.074 mm and its chemical composition can be seen in Table S1) was thoroughly mixed with 2 wt% binder (bentonite, shown as Table S2) and 8 wt% water and pelletized to ϕ10-12 mm in a disc pelletizer.The pellets were then loaded into a …

This contribution aims to carry out a review of the known vanadium ore sources and mineralizations located in Africa, which are highly diversified in their geological and mineralogical characteristics, and can be classified in: 1. Vanadiferous (titano)magnetite deposits; 2. Sandstone-hosted (U)-vanadium deposits; 3.

Jun, Z., Feng, W., Yuan-hong, Q. et al. High-Efficiency Extraction of Fe, V, and Ti from Vanadium Titano-Magnetite Concentrate Based on Activated Reduction. …

In this work, diboron trioxide and calcium fluoride are applied as composite additives to explore a process suitable for processing low-grade, high-vanadium, ultra-high-titanium vanadium–titanium magnetite. The metallized coal-based direct reduction–electromagnetic separation experiment was conducted. Results show that a …

Recovering vanadium from vanadium titanium-magnetite (VTM) ore using (NH4)2C2O4 is a clean hydrometallurgical process, but the drawback is the low recovery and slow kinetics due to the formation ...

Vanadium slag is enriched with vanadium basically in the form of a vanadium spinel and is generated during the iron and steel-making process using vanadium titanomagnetite (Jia et al., 2014) as ...

ABSTRACT 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 …

Read this article. In this study, a new vanadium extraction process from vanadium titano-magnetite (VTM) featuring calcification roasting and (NH 4) 2 C 2 O 4 …

Abstract. Titanium mineral was prepared from vanadium titanomagnetite concentrates by hydrogen reduction and acid leaching. The leaching behaviors of …

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 …

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 …

Vanadium titano-magnetite raw mineral was purchased from the National Research Center for Certified Reference Material (Beijing, China). The main composition by weight percent of the mineral provided is total Fe 27.55%, SiO 2 25.47%, TiO 2 9.72%, MgO 6.17%, CaO 7.50%, Al 2 O 3 10.29%, and V 2 O 5 0.258%. The X-ray diffraction …

Titano magnetite ore is a potential resource for iron and titanium and even vanadium in the metallurgical industry and its solid state carbothermic reduction is found to be mix controlled (initially chemical reaction rate control switching to diffusional rate control at later stages) [4–6]. Currently, the general reduction process of iron ...