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).

Selective Extraction and Separation of Titanium from Vanadium Slag and Preparation of TiO 2 Shiyuan Liu, 1, 2 Xiaobo He, 3 Shun Wu, 1 Yahui Liu, 2 Lijun Wang, * 1 and Kuo-Chih Chou 3 1 Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, P. R. China

Jul 27, 2014· 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 Corresponding author: Man-sheng Chu E-mail: [email protected] Abstract：With aim to high efficiency utilization of …

The method for separating titanium and/or vanadium from pig iron envisages a sufficient quantity of iron oxides for slagging titanium being added to the pig iron in a first stage, the titanium being slagged and the slag separated, and then a sufficient quantitiy of iron oxides for slagging vanadium being added, and the vanadium-enriched slag formed being separated, …

Improved radiochemical separation of no-carrier-added vanadium-48 from proton irradiated titanium target. M. L. Bonardi 1, E. Rizzio 2, M. Gallorini 3, F. Groppi 4 & H. S. Mainardi 5 Journal of Radioanalytical and Nuclear Chemistry volume 263, pages 23–28 (2005)Cite this article

Aug 10, 2017· 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 were used to characterize the samples. The …

the separation of vanadium-titanium magnetite and improves the TiO 2 recovery in ilmenite. Keywords HPGR, microcrack, vanadium-titanium magnetite, crushing process. Introduction Comminution (defined as crushing and grinding) accounts for the greatest proportion of the total energy consumed in a processing plant (Abdel-Zaher and Fuerstenau, 2009).

In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate. Meanwhile, the mechanisms of potassium salt roasting and acid leaching kinetics were investigated. The results indicate that potassium salt roasting additives are more efficient than sodium and calcium salt and that K2SO4 works best.

SEPARATION OF SCANDIUM, TITANIUM AND VANADIUM}, author = {Walter, R I}, abstractNote = {The adsorption on Dowex-1 anion exchange resin of Sc/sup 3+/ and V/sup 4+/ tracers has been studied in the presence of low concentrations of oxalate, citrate, fluoride, and carbonate ions. V/sup 4+/ forms strongly adsorbed complex anions with each of these ...

The conversion and separation of iron, vanadium, and titanium from vanadium-titanium-iron concentrate are well achieved. Embodiment 6. 100 parts of 6# vanadium-titanium-iron concentrate, 70 parts of a mixture of sodium carbonate and sodium chloride (mol(Na 2 CO 3 /NaCl)=1:1), and 30 parts of coke are well mixed. Then, the mixture is kept for 2 ...

Sep 20, 2020· The storage and landfill of spent V 2 O 5 –WO 3 /TiO 2 selective catalytic reduction (SCR) catalysts can pose environmental hazards, and the valuable tungsten, vanadium and titanium resources are wasted due to the lack of appropriate recycling technology. In this study, we explore an effective and low-cost method to simultaneously recycle tungsten, …

Abstract The separation of titanium (Ti) (IV) in acidic leach solutions of vanadium slag by solvent extraction with trioctyl tertiary amine (N235) is proposed. Because the leach solutions contain a lot of vanadium (V) and iron (Fe) impurities, the effects of various conditions on the separation of Ti, V, and Fe were investigated. Then, the extraction mechanism and …

The separation and recovery possibilities of vanadium(V) from other associated metal ions, such as magnesium(II), aluminium(III), titanium(IV), chromium(III), manganese(II), and iron(III), present in the waste chloride liquors of titanium minerals processing industry, are discussed.

vanadium-rich slag (Christiania Spigerverk, 1969). Direct smelting of ore in an electric furnace to yield coproduct iron, titanium, and vanadium has been proposed (Udy, 1962). The titaniferous magnetite deposit at Otanmaki, Finland (no. 58, fig. 2, and table 1), is in a complex group of intrusive rocks consisting mainly of

Oct 27, 2015· Reduction roasting with sodium sulfate followed by magnetic separation was investigated to utilize vanadium tailings with total iron grade of 54.90 wt% and TiO2 content of 17.40 wt%. The results show that after reduction roasting–magnetic separation with sodium sulfate dosage of 2 wt% at roasting temperature of 1150 °C for roasting time of 120 min, …

Sep 19, 2002· The separation and recovery possibilities of vanadium(V) from other associated metal ions, viz magnesium(II), aluminium(III), titanium(IV), chromium(III), manganese(II) and iron(III), which are present in the waste chloride liquors from the processing of titanium minerals, are also discussed.

A method (10) for the extraction and recovery of vanadium from its ores, the method (10) characterised by the steps of: (i) Acid leaching (12) of an ore containing vanadium and iron to extract vanadium and iron into solution; (ii) Passing the product (78) of the leach step (i) to a solid/liquid separation step (80); (iii) Passing the liquid product (82) of separation step (ii) to a …

Separation and recovery of iron and titanium from oxidized vanadium titano-magnetite by gas-based reduction roasting and magnetic separation May 2019 Journal of …

vanadium, and titanium from vanadium titanomagnetite by S.Y. Chen* and M.S. Chu* Synopsis 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 titanomag-netite.

Abstract A novel process featuring pressurized pyrolysis of ammonium chloride-acid leaching-solvent extraction was carried out to separate vanadium, titanium and iron from vanadium-bearing titanomagnetite (VBT). Then vanadium and iron existed in the form of ammonium polyvanadate ((NH4)2V6O16) and ammonium jarosite (NH4Fe3(SO4)2(OH)6) after …

The separation and recovery possibilities of vanadium(V) from other associated metal ions, viz magnesium(II), aluminium(III), titanium(IV), chromium(III), manganese(II) and iron(III), which are ...

chemistry is the separation of Litanium, niobium, and tantalum. Existing methods [1, 2, 3, 5, 6]1 for the separation of niobium and tantalum arc not entirely satisfactory in the presence of titanium, and such methods are further complicated by additional separations when molybdenum and Lungsten are present.

The separation and recovery possibilities of vanadium (V) from other associated metal ions viz, magnesium (II), aluminum (III), titanium (IV), chromium (III), …

separation of vanadium and titanium from iron separation of vanadium and titanium from iron ore. separation of vanadium and titanium from iron ore SKD excellent mining crushing machinery products or production line design, the company is committed to building the Chinese brand mine crushing and processing machinery, mainly crusher, mill, sand.

May 19, 2004· The solvent extraction of magnesium(II), aluminium(III), titanium(IV), vanadium(V), chromium(III), manganese(II) and iron(III) from hydrochloric acid solutions has been investigated using the trialky...

Efficient separation of vanadium, titanium and iron from vanadium-bearing titanomagnetite by pressurized pyrolysis of ammonium chloride-acid leaching …

The simultaneous separation of ternary complexes of Ti IV, Nb V and Ta V with hydrogen peroxide and 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP) was evaluated using reversed-phase high-performance liquid chromatography with a C 18 column. Moreover, simultaneous separation of a V V —H 2 O 2 —5-Br-PADAP ternary complex and a V V – 5-Br …

To effectively recycle and utilize vanadium and titanium resource from the vanadium slag, the crystallization and separation behaviors of V-spinel phase and Ti-spinel phase in the FeO–SiO 2 –V 2 O 3 –TiO 2 system as the main components of vanadium slag were investigated. The results indicated that the suitable temperatures for precipitating V-spinel phase and Ti-spinel …

Vanadium and titanium are industrial minerals which require significant proof of value-in-use when negotiating with potential offtakers. The Barrambie development strategy seeks to realise value from both the titanium and vanadium in the deposit via the ... The reductive roast-magnetic separation work is a breakthrough for the Company as we can ...

Sep 01, 2021· The present work is focused on the separation and recovery of chromium from vanadium precipitated solution. 2 Experimental 2.1 Materials and analysis The chromium-containing vanadate solution was provided by Pangang Group Vanadium & Titanium Resources Co., Ltd., which was obtained by leaching vanadium slag roasted with Na2CO3.