magnetite iron titano

Reduction Kinetics of Vanadium Titano-Magnetite Carbon Composite

Key words : carbon composite pellet; reduction kinetic; catalyst; vanadium titano-magnetite Vanadium titano-magnetite is a kind of complex iron ore which contains various valuable metal eleÂ ments such as iron, vanadium, titanium, etc. This magnetite is mainly distributed in the area of Panxi, Chengde and Maanshan in China. Among the …

Reduction Kinetics of Vanadium Titano-Magnetite Carbon

Experiments were carried out by adding CaF2 and NaF as catalysts in an Ar atmosphere to study the isothermal reduction kinetics of vanadium titano-magnetite carbon composite pellets under high temperature in the range from 1473 to 1673 K. The scanning electron microscope (SEM) was used to characterize the microstructure of …

Metalizing reduction and magnetic separation of vanadium titano …

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 …

Enhancing Reduction Separation and Efficient Recovery of Iron…

Materials. Table I shows the chemical composition of the ultra-high-titanium vanadium–titanium magnetite concentrate (<75 μm) used in the experiment. The data clearly reflect the mine's low-iron, high-vanadium, and ultra-high titanium characteristics. The X-ray diffraction (XRD) pattern of the raw ore in Figure 1 shows that the phases of …

Softening–Melting Properties and Slag Evolution …

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 …

Discovery of vanadium titano-magnetite as a persulfate …

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 ...

Reduction kinetics of oxidized vanadium titano-magnetite pellets …

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 …

Titanomagnetite

Titanomagnetites are common magnetic minerals in igneous and metamorphic rocks. Titanomagnetites (Fe3 −x Ti x O 4, 0 ≤ x ≤ 1) form a complete solid solution above ~ 923 …

Optimized magnetic separation for efficient recovery of V …

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.

Formation of Hearth Sediment during Vanadium Titano-magnetite Smelting

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 …

Promoting low-temperature consolidation of vanadium titano-magnetite …

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 …

Performance calculation of slag from vanadium titano-magnetite …

Compared with ordinary iron ore, vanadium titano-magnetite is characterized by high TiO2 content. Blast furnace is the most mature smelting method of vanadium titano-magnetite, but it needs adding ordinary iron concentrate to control the content of TiO2 in slag less than 25% to ensure stable operation of blast furnace [2], [3]. …

HIGH-EFFICIENCY EXTRACTION OF Fe, V, AND Ti FROM …

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 …

China Vanadium Titano-Magnetite Mining Stock Price

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 ...

Process Mineralogical Analysis of a Typical Vanadium …

Vanadium titano-magnetite concentrate (VTM) is a widely occurring multi-metal associated iron ore. The main components of VTM are iron, titanium, and …

Vanadium extraction from titano-magnetite by …

Vanadium titano-magnetite is widely distributed in many provinces in China and the proven reserve is 9.83 ... TP 207 and S 200H resins, while M4195 adjusted better to the Temkin isotherm. The iron adsorption mechanism, however, varied between the Langmuir, Freundlich and Temkin models.

Theoretical Modeling and Experimental Evaluation of …

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 .

Kinetics of Reduction of Titano-magnetite Powder by H2

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 ...

Influence of different comminution flowsheets on the …

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 …

A Comparative Study of Extracting Vanadium from …

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 …

Softening and melting properties of different burden structures

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 …

Preparation and characterization of electromagnetic wave …

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 ...

Sticking behaviour of vanadium titano-magnetite

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 …

Optimized magnetic separation for efficient recovery …

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 …

Life cycle assessment of the comprehensive utilisation of vanadium

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.

Investigation of Vanadium Titanomagnetite Concentrate …

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 …

Mechanisms and Kinetics of Solid State Reduction of …

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 …

Softening and melting properties of different burden …

Titaniferous magnetites as a source of vanadium titanium …

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

High-Efficiency Smelting Separation of Vanadium–Titanium Magnetite …

South African vanadium–titanium magnetite is a complex mineral resource rich in iron, vanadium, titanium, and chromium [1,2,3].Its ore composition is composed of more than 20 elements [4,5,6].It is the most complex ore of its type in the world and contains more than 10 valuable elements, so it has a very important integrated utilization …