A new process for the recovery of iron, vanadium, and …

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 …

Recovery of Fe and V via selective reduction–magnetic separation …

With the aim of separating Fe and V, a vanadium-titanium magnetite concentrate was selectively reduced, followed by magnetic separation. The processes accompanying reduction of the vanadium-titanium magnetite concentrate were investigated using thermodynamic simulation, experiments, scanning electron microscopy, and electron probe microanalysis. …

Process Mineralogy of Vanadium Titanomagnetite Ore in …

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 ilmenite, resulting in a …

Influence of different comminution flowsheets on the separation …

A grinding time of 15 min was determined as optimum for the grinding conditions of this study, based on the degree of liberation, the grade, and recovery of vanadium. The effect of varying magnetic intensities on the separation behavior of the pre-concentrates was analyzed through magnetic separation of the ground VTM samples.

Characterization and Pre-Concentration of Low …

A large number of unexploited low-grade vanadium-titanium magnetite deposits have been found in the Chao-yang area of China in recent years. The reserves are estimated at more than 20 billion tons. A mineralogical …

Separation and recovery of iron and titanium from oxidized vanadium …

Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite (VTM).

From Waste to Wealth: Current Advances in Recycling

Traditional technologies used for recycling vanadium-titanium magnetite tailings (VTMT) include physical and chemical methods. Physical technologies consist of magnetic separation, and gravity separation, physicochemical technology is mainly flotation and chemical technologies involve sodium roasting, calcium roasting, and salt-free roasting.

Mineralogical characterisation and magnetic separation of vanadium …

Grinding, sieving and magnetic separation were combined to recover metallic iron from the converter slag, and yielded approximately 41.5% of iron in which the iron content was as high as 85%, and the non-magnetic concentrate contains 8.56% vanadium with a yield of 95.3% and 8.63% titanium with a yield of 85.3%.

Preparation of titanium mineral from vanadium …

Vanadium titano- magnetites (VTM) are found throughout the world with huge reserves [3]. The TiO2 grade in the VTM concentrates is varied with the deposits, from 1 wt.% [3] to as high as around 20 wt.% [4]. ... process [5], the reduction and melting separation process [6], the reduction and magnetic separation process [7], and the sodium ...

Pyrrhotite-dependent microbial reduction and magnetic separation …

Up to 49.0 ± 4.7 % of vanadium could be removed from the aquifer by the applied magnetic field, and the vanadium in the aquifer after the reaction was mainly in the acid-extractable and reducible states. pH had a strong effect on the magnetic recovery of V(V), while the influence of initial V(V) concentration was weak.

A novel method for efficient recovery of ilmenite by high …

The vanadium titanium magnetite deposit in Panzhihua has abundant ilmenite resources. A flowsheet combining high gradient magnetic separation (HGMS) and flotation was applied to recover the ilmenite, which had defects of high production cost due to high flotation regent consumption, low ilmenite utilization rate of 20% as ultrafine minerals ...

Zeolite–resin magnetic nanocomposite as an efficient

The recovery of vanadium by zeolite–resin magnetic nanocomposites from industrial Bayer liquor was studied in this paper. The magnetic nanocomposite was fabricated by synthesizing Fe3O4 nanoparticles and adding zeolite and amberlite IRA-400. Different techniques such as X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning …

Coal-Based Reduction and Magnetic Separation Behavior …

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 diffraction (XRD). The …

Enhancing Reduction Separation and Efficient Recovery …

magnetic separation experiments were carried out on a magnetic separator to obtain magnetic and non-mag-netic materials. The chemical composition of the reduction and magnetic separation products was determined by ion spectroscopy using inductively coupled plasma-atomic emission spectroscopy (ICP-AES; optima 8300dv, Per-kinElmer).

Metalizing reduction and magnetic separation of vanadium …

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 investigated through …

Mineralogical characterisation and magnetic separation of vanadium …

Grinding, sieving and magnetic separation were combined to recover metallic iron from the converter slag, and yielded approximately 41.5% of iron in which the iron content was as high as 85%, and ...

Separation and Recovery of Vanadium(IV), Iron, and …

This study addressed the separation and recovery of vanadium(IV), iron, and titanium from synthetic and real leach solutions of vanadium-bearing titanomagnetite using extractant P204 (di-(2-ethylhexyl) phosphate) and P507 (2-ethylhexyl hydrogen-2-ethylhexyl phosphonate). Based on the speciation analysis of vanadium in sulfuric acid medium, the …

Three Types Of Vanadium Ore Beneficiation Methods

Vanadium and cobalt are often isomorphic to iron and occur in titanomagnetite and pyrite, respectively. The beneficiation of this kind of ore generally uses weak magnetic separation to separate the vanadium iron concentrate, and then uses the combined method of gravity separation, strong magnetic separation, flotation and electric separation ...

The extraction of vanadium from titanomagnetites and other sources

The commercialisation of vanadium redox flow batteries for large scale electric energy storage and power grid stabilisation is expected to increase the global demand for vanadium in the coming years. ... Some magnetic separation may also be necessary to remove metallic iron entrained in slag before salt roasting (Gabra and Malinsky, 1981). 3.3 ...

Pyrrhotite-dependent microbial reduction and magnetic …

Microbial reduction under anaerobic condition is a promising method for remediating vanadate [V (V)] contamination in aquifers, while V (V) may be re-generated with redox …

Chromium and iron recovery from hazardous …

PDF | On May 1, 2023, Jianfa Jing and others published Chromium and iron recovery from hazardous extracted vanadium tailings via direct reduction magnetic separation | Find, read and cite all the ...

Influence of different comminution flowsheets on the separation …

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 parallel and stage separation, respectively. ... The concentrate of the magnetic separation is the final iron concentrate (titanium magnetite), and the ...

A new process for the recovery of iron, vanadium, and …

In this paper, a new process for VTM beneficiation is proposed, comprising metallizing reduction, magnetic separation, and electroheat melting separation. The proposed flow sheet is shown in …

Separation of Ilmenite from Vanadium Titanomagnetite …

Separation of Ilmenite from Vanadium Titanomagnetite by Combining Magnetic Separation and Flotation Processes Fuxing Zhu 1,2, *, Zhanshan Ma 1, *, Kehui Qiu 2, * and Weixing Peng 1

The Effect of Different Magnetic Separation Procedures of a …

The study focused on the recovery of vanadium from a Korean vanadium-bearing titaniferous magnetite (VTM) ore, examining the behaviors of magnetic separation and Na2CO3 roasting-water leaching. Two concentrates were prepared using single-stage dry magnetic separation and three-step wet magnetic separation, resulting in V2O5 grades of 0.8% and …

Separation of Ilmenite from Vanadium …

The results show that a concentrate with a TiO2 grade of 9.90% can be separated via weak magnetic separation and coarse particle tailing dumping. The concentrate grade is then increased to 14.32% via strong magnetic separation …

Influence of different comminution flowsheets on the separation …

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 Qian-qian Wang}, journal={Minerals …

Mineralogical reconstruction of Titanium-Vanadium hematite and magnetic

In this paper, magnetization roasting - low-intensity magnetic separation was performed on a pre-concentration concentrate obtained from an Australian hematite containing titanium and vanadium to ...

Fusion Separation of Vanadium-Titanium Magnetite and …

In the separation of raw ore, Zhang Yanhua and Han Yuexin et al. used weak magnetics to enrich vanadium-titanium magnetite with strong magnetism, and then selected gravity separation, high gradient magnetic separation, electric separation, flotation or their combined processes to obtain titanium concentrate products according to the differences ...

Mineralogical Characteristics of Baima Vanadium …

Generally, low-intensity magnetic separation is first conducted to beneficiate the vanadium titanomagnetite concentrate after grinding of the raw ore. An ore processing plant in Baima produced iron concentrate with an Fe …

A new process for the recovery of iron, vanadium, and …

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 vanadium titanomagnetite. ... The high-titanium slag in the non-magnetic fraction and vanadium slag could be further treated by a hydrometallurgical ...