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 …

Vanadium titano-magnetite (VTM) provides 88% of the world's vanadium [7, 8]. Of these, 14% comes directly from VTM, and 74% comes from vanadium slag produced during steelmaking . The direct extraction of vanadium from VTM adopts a sodium salt roasting water leaching process . It is applied by enterprises in South Africa and Brazil .

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 …

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. ... A novel process of reverse flotation-hydrogen reduction for preparation of high-purity iron …

Vanadium-containing titanium magnetite is the main source of V and Ti in the internal market. About 75% Fe, 82% V, and 44% Ti pass into iron concentrate during ore …

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 …

At respective optimum conditions, the titano-magnetite ore (O1) could yield an iron concentrate of 62.57% Fe grade and 60.01% Fe recovery, while the goethitic ore (O2) could be upgraded to a concentrate of 64.4% Fe grade and 33.3% Fe recovery. Compared with the goethitic ore, the titano-magnetite ore responded better to MW …

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.

This paper investigated a pellet ore production process in which vanadium was extracted from vanadium and titanium magnetite concentrates using sulfuric acid leaching. Calcium and magnesium were …

Metallic iron powder with an iron content of 94% is prepared by means of magnetic separation, and there are few slag fragments bearing V and Ti dispersed within iron particles. ..., title={High-Efficiency Extraction of Fe, V, and Ti from Vanadium Titano-Magnetite Concentrate Based on Activated Reduction}, author={Zhang Jun and Wang …

The influence of reduction temperature and gas composition on sticking behaviour of vanadium titano-magnetite oxidised pellets was investigated in this work. It was found that the sticking index (SI) increased with temperature and CO content of gas mixture. Microstructure transformation of sticking interfaces under different temperature …

1. Introduction. Vanadium titano-magnetite (VTM) is a typical multi-metal composite ore resource rich in iron, titanium, and vanadium. It is widely distributed in China, Russia, Indonesia, New Zealand, and other regions [1].The vanadium contained in VTM has extensive applications in aerospace and mechanical manufacturing, while titanium, due …

In contrast, VTM is a multi-metallic iron-based ore containing iron, titanium, and vanadium as the main constituents [24, 25]. ... Separation and recovery of iron and titanium from oxidized vanadium titano-magnetite by gas-based reduction roasting and magnetic separation. J. Mater. Res. Technol., 8 (2019), pp. 3036-3043.

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 …

In addition, abiotic dissolution of the magnetite was tested with gluconic and oxalic acids, and yielded 3.99 and 81.31% iron release as a proxy for vanadium release, respectively.

Vanadium titanomagnetite is an important source of vanadium and titanium throughout the whole world. During enrichment about 82 wt.% of vanadium, 54 wt.% titanium, and 75 wt.% of iron are transferred into iron concentrate [1, 2].Currently vanadium titanomagnetite concentrate (VTMC) is used as a charge in blast furnace (BF) for …

China Vanadium Titano-Magnetite Mining Co Ltd 0.00 0.00 HKD ... The High-Fe Mining Operation segment comprises the operation of sale of self-produced high-grade iron concentrates. The Trading ...

1. Introduction. Vanadium titano-magnetite (VTM) is a polymetallic symbiotic iron ore primarily containing iron, vanadium, and titanium. Iron minerals and titanium-bearing minerals coexist closely, primarily in the form of the strongly magnetic titanium magnetite and weakly magnetic ilmenite; however, vanadium-bearing minerals are …

Abstract. This study describes the life cycle assessment (LCA) of the comprehensive utilisation of vanadium titano-magnetite (VTM) through the integrated steel production and valuable element (V and Ti) extraction route. The major sources of environmental impacts are described and pollution prevention methods are proposed.

Now the process of blast furnace is the main operating means for melting vanadium titano-magnetite to separate iron, vanadium and titanium. Actually, the cohesive zone was identified as a dominant factor for blast furnace operation according to subsequent studies (Leimalm, 2010, Zuo, 2000). The softening and melting of iron …

Polymetallic vanadium titano-magnetite (VTM) is recognized as one of the most refractory mineral resources because of its multiple-element composite symbiosis feature. ... Vanadium titanomagnetite (VTM) is a typical kind of symbiotic complex ore and rich in iron (Fe), titanium (Ti), vanadium (V), and other valuable metals. Abundant VTM ...

The mineral coulsonite (FeV 2 O 4) is often associated with magnetite (Radtke, 1962) and forms a series with magnetite and chromite, FeCr 2 O 4 (Reznitsky et al., 2005). Ilmenite is also known to host vanadium (Xu et al., 2017). Hence, iron and titanium deposits are a major source of vanadium (Gupta and Krishnamurthy, 1992, Dill, …

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 …

The large quantity of sediment produced in the hearth during vanadium titano-magnetite smelting in a blast furnace (BF) affects the stability of the blast furnace operation. Testing and analysis of the sediment in the hearth of Chengde Iron and Steel Company's BF No.7 revealed that it was mainly concentrated in the location below the …

TITANO-MAGNETITE CONCENTRATE BASED ON ACTIVATED REDUCTION Zhang Jun,1 Wang Feng,2 Qi Yuan-hong,3 Yan Din-liu,4 and Zhao Hai-quan5 UDC 669.292.3 Methods of chemical analysis, XRD, and pH monitoring are adopted in order to study wet extraction of ... Metallic iron powder with an iron content of 94% is prepared by means …

Vanadium titano-magnetite (VTM) is a multielement mineral, and it includes iron, titanium, and vanadium elements with small amounts of chromium, cobalt, nickel, etc. [50]. Traditionally, VTM was taken to be one of the most important materials for industry [51], while recently it was considered a catalyst due to its unique physical and chemical ...

From the above analysis, it was concluded that, during operation of the blast furnace, the pig iron in the bonding material in the hearth would be a liquid and Issue 11 Formation of Hearth Sediment during Vanadium Titano-magnetite Smelting in Blast Furnace 1011 Table 3 Mineral characteristics of metallic iron in bonding material Mineral …

1. Introduction. Vanadium-titanium magnetite is a complex symbiotic iron ore resource composed of iron, vanadium, titanium and other metals, which is one of the most important iron ore resources in China [1,2,3,4].Titanium, as an indispensable metal raw material for the modern industry and advanced science and technology, is mostly …

Reduction of titano-magnetite powder containing 56.9 mass% of iron and 9.01 mass% of TiO2 with H2-Ar gas mixtures was investigated in isothermal experiments using thermo-gravimetric analyzer (TGA ...

This paper looks at the methods used and various process routes being considered for potential new titaniferous magnetite projects. CITATION:Connelly, D, 2019. …

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 …

Now the process of blast furnace is the main operating means for melting vanadium titano-magnetite to separate iron, vanadium and titanium. Actually, the cohesive zone was identified as a dominant factor for blast furnace operation according to subsequent studies (Leimalm, 2010, Zuo, 2000). The softening and melting of iron …

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 …