With these, A 0 and E a can be calculated for the magnetite-rich ore composition (A 0 = 2.4607 × 10 −2 Pas, E a = 2.6871 × 10 4 J/mol). The fitted viscosity values compared to the viscometry ...

Abstract. 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 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% Fe, 20.00 wt% TiO 2 and 0.80 wt% V. According to the analysis results of X-ray diffraction (XRD) …

V anadium–titanium magnetite (VTM) is one of the main raw materials for extracting iron and vanadium. At present, the industrial utilization of vanadium–titanium magnetite is still based on the

magnetite ore and the productive deposits are briefly described below. Vanadium can be recovered from titaniferous magnetite ore or a magnetite concentrate of the ore by …

sandstone minerals Chapter outline 3.1 Metallogenic characteristics of vanadium ore 34 3.1.1 Main genetic types of global vanadium deposits 35 3.1.2 …

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 study of raw sample indicated that it was a typical low-grade vanadium-titanium magnetite ore with weathering. Most of …

Sea sand ore is a kind of complex iron ore resource with titania magnetite as the main mineral phase formed by the erosion of rivers, waves, tides, and ocean currents in coastal areas [5][6][7] [8 ...

Vanadium titanomagnetite concentrate (VBT) is a kind of multi-metal element symbiotic compound ore, containing iron, vanadium, and titanium . More than …

VTM deposits are the principal source of vanadium and consist of magmatic accumulations of ilmenite and magnetite containing 0.2 to 1 weight percent vanadium pentoxide (V 2 O 5). SSV deposits are another important source; these deposits have average ore grades that range from 0.1 to greater than 1 weight percent V 2 O 5. The …

Notice There are two kinds of magnetite vein. One has gold ore and the other has iron ore. Be careful. Magnetite-One of the main sources of iron. Provides gold in a chemical bath, iron and gold as byproducts. BF recipe makes iron ingots. ... Vanadium Magnetite- Found in magnetite veins. Main source of vanadium. Vanadium and …

The sintering basic characteristics of iron ore play a key role in the process of sintering. In this study, the effects of B 2 O 3 on the assimilation characteristics, softening temperature, fluidity of liquid phase, compressive strength of bonding phase, and microstructure of the mixed fine powder of hematite and vanadium-titanium magnetite …

Vanadium‑titanium magnetite, a kind of composite ore with iron, vanadium and titanium, has not been utilized on large scale by steel plants. An efficient and clean …

Titanium or vanadium metals or their alloys are important industrial metals/alloys. Because these resources are in short supply, the investigation of potential titaniferous-vanadiferous deposits needs special attention to bridge the supply-demand gap. The study integrates geological, geochemical, remote sensing, and geophysical data for …

VTM deposits are the principal source of vanadium and consist of magmatic accumulations of ilmenite and magnetite containing 0.2 to 1 weight percent vanadium pentoxide (V 2 O 5). SSV deposits are another important source; these deposits have average ore grades that range from 0.1 to greater than 1 weight percent V 2 O 5 .

A significant titanomagnetite deposit is located at Pipestone Lake in northern Manitoba [4]. The ore body contains up to 60 % magnetite, 31% ilmenite and 0.66 % vanadium which is associated with the magnetite. The rest of the ore consists mainly of oxides of silicon, magnesium and aluminum which total up to seven percent.

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 …

A general process for vanadium production can include magnetic separation, salt roast, water leach, precipitation, and calcination of V 2 O 5. Up to 87% vanadium recovery from magnetite is achieved by chemical leaching using a mixture of nitric and sulfuric acids at a temperature of 80–95°C ( Nejad et al., 2018 ).

Recovery of vanadium from magnetite ore by direct acid leaching is discussed. The proposed process, which employs a mixture of nitric and sulfuric acids, …

This study reported the extraction of vanadium from low-vanadium grade magnetite concentrate pellets using sodium salt. 71.1% of vanadium can be extracted under the following optimal conditions: pelletizing with 5 wt% Na 2 CO 3, preheating at 1050 °C for 10 min, roasting at 1250 °C for 10 min, and water leaching at 120 °C for 120 min …

Ti-magnetite observed in different stages of martitisation is the primary oxide mineral together with exsolved ilmenite and spinel. No disorete vanadium-bearing mineral is observed. Vanadium is present as (a) partial substitution for Fe 3+ in magnetite, and (b) in the form of VFe 2 O 4, similar to TiFe 2 0 4 (ulvosphinel). The sulphide phase is ...

Vanadium titanomagnetite concentrate (VBT) is a kind of multi-metal element symbiotic compound ore, containing iron, vanadium, and titanium [].More than 85% of vanadium and 90% of titanium originate from VBT in China [2, 3].The western Liaoning area is another large deposit in China besides Panzhihua, which is characterized by high …

The valence state of V is quite sensitive to variations in oxygen fugacity, and V 3+ converts to V 4+ easily under more oxidizing conditions; thus, vanadium distribution in magnetite can reflect fO 2 differences in the ore-forming fluid, and the concentration of V decreases with increasing fO 2 (Toplis & Corgne, 2002; Nadoll et al., 2014, 2015 ...

Nearly all of the world's vanadium is derived from mineral concentrates (typically vanadium-rich and titanium-rich magnetite) separated from mined ore, or as a by-product of steel-making slags. …

Mineralogical analysis of the VTM ore used in this study was performed, and the presence of vanadium in iron-based minerals such as magnetite and ilmenite was confirmed. Magnetite was the most abundant mineral phase accompanied by titanium with relatively high impurities (e.g., SiO 2, Al 2 O 3, CaO).

The novel extraction method has many advantages, such as a low heating temperature, a compact route, an easy operation, etc., compared with traditional metallurgy method for vanadia–titania magnetite. And it can inhibit the emergence of harmful substances such as pentavalent vanadium and hexavalent chromate.

Vanadiferous titanomagnetite ore (VTM) provides an important source of iron, and the associated vanadium, titanium, chromium, cobalt, nickel, platinum, and scandium components are of high economic value. The VTM is distributed globally with large reserves, mainly in China's Panzhihua and Chengde regions, exceeding five billion tons [1,2,3,4,5 ...

V-bearing titanoferrous magnetite is a valuable ore, even though it has a low vanadium concentration, and is the main raw material for vanadium extraction. V-containing magnetite can occur as either the titanomagnetite or Ti-free magnetite. V-containing titanoferrous magnetite generally has low Ti and Fe contents, and enrichment to …

Vanadium Ore. Part of Hall of Planet Earth. This rock is composed almost entirely of the iron oxide mineral magnetite, so named because it is naturally magnetic. When magmas crystallize, magnetite is the only …

Vanadium can be recovered from titaniferous magnetite ore by either of two processes: (1) precipitating a vanadium salt from a leach of ore roasted with salt, or (2) precipitation from a leach of salt-roasted vanadium-rich slag obtained by smelting the ore to make a vanadium-bearing pig iron, which is then blown in a