After decades of development of the vanadium titanomagnetite (VTM) ore in the Panzhihua district changes have taken place to the ore characteristics. In addition, preliminary research carried out in this area mainly focused on the separation and extraction of iron resources and lacked a systematic research focus on the process mineralogy of …

To achieve high efficiency utilization of Panzhihua vanadium titano-magnetite, a new process of metalizing reduction and magnetic separation based on hot briquetting is proposed, and factors that affect the cold strength of the hot-briquetting products and the efficiency of reduction and magnetic separation are successively …

Efficient Extraction of Vanadium from Vanadium–Titanium Magnetite Concentrate by Potassium Salt Roasting Additives. Renmin Li Tao Liu Yi-min Zhang Jing Huang Chengbao Xu. Materials Science, Chemistry. 2018. In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate ...

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% ...

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 resources. Here, the separation of ilmenite from VTM ore is studied by combining magnetic separation and flotation technologies. In particular, the …

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 …

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 …

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 …

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. …

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 ...

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 ...

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 has been proposed. Compared with the traditional sodium roasting, the calcification roasting can avoid the production of waste gas and the sodium free tailings …

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,

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 …

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.

V-containing titanoferrous magnetite generally has low Ti and Fe contents, and enrichment to produce V-containing iron concentrate is performed to meet the …

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, 2013, 244/245: 588âˆ'595. [3]

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 …

Abstract. This study is focused on the detailed investigation of the process mineralogy of a typical Vanadium titano-magnetite concentrate (VTM) to efficiently …

Comparative separation tests of vanadium titano-magnetite (VTM) were conducted in this study by employing a high-pressure grinding roller (HPGR) and a jaw crusher (JC); these were followed by a ...

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 …

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 …

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 phase transformation of pre-oxidized vanadium titano-magnetite pellets during the reduction process under an H 2 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.

Chen SY, Chu MS (2014) A new process for the recovery of iron, vanadium and titanium from vanadium titano-magnetite. J S Afr Inst Miner Metall 114:481–487. CAS Google Scholar Wang WZ, Meng QL, Yang CG (2013) Experimental research on comprehensive recovery of iron and titanium from the vanadium-titanium magnetite ore.

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 …

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 …

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 ...

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.