Separations | Free Full-Text | Process Mineralogy of …
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 …
Efficient Degradation of Organic Dyes Using Vanadium
The recycling of mineral tailings is an important research topic. In this work, composite material was prepared using vanadium titanomagnetite (VTM) tailings, kaolin and sodium silicate, and used as a photocatalyst for photocatalytic degradation organic dyes. The results showed that the photocatalytic material has good photocatalytic performance …
Influence of Parameters on the Pre-Reduction Process of …
A novel smelting reduction process called pre-reduction in rotary kiln and total oxygen melting pool is a promising route to reduce environmental pollution from the ironmaking industry. In this paper, the process parameters and appropriate efficiency of reduction in the pre-reduction process of the rotary kiln were investigated via the …
Softening–melting Properties and Slag Evolution Behavior of …
Titano-magnetite will be reduced stepwise to form Fe2TiO4, and then in the order of FeTiO3→TiO2→Ti(C,N). Wustite (FeO) was an important component during the slag-forming process, whose content ...
Distribution behavior of vanadium and titanium between hot …
1. Introduction. Vanadium titano-magnetite is a major source of iron, vanadium, and titanium resources, with about 18 billion tonnes of reserves in China [[1], [2], [3]].Currently, there are various processes for the comprehensive utilization of vanadium titano-magnetite [4, 5].However, it is difficult to achieve efficient recovery of vanadium …
Metalizing reduction and magnetic separation of …
magnetic separation. To achieve high efficiency utilization of Panzhihua vanadium titano-magnetite, a new process of metalizing reduction and magnetic …
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 …
Variation of properties with Ti substitution in the …
In the Los Pelambres deposit, magnetic properties of rocks are carried by titano-hematite and titano-magnetite solid solution minerals, where the former commonly indicates the exsolution of rutile.
Oxidation kinetics of a low-grade vanadiferous …
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.
Efficient Degradation of Organic Dyes Using …
The recycling of mineral tailings is an important research topic. In this work, composite material was prepared using vanadium titanomagnetite (VTM) tailings, …
Complete value recovery – Process productivity
Increased profitability through complete value recovery. When processing titano-magnetite ore, producers focus primarily on mining processes and pig iron production. However, by …
A comparison study of applying natural iron minerals and
Natural iron minerals and zero-valent metals have been widely tested as catalysts for the Fenton-like process, but the systematical comparison study about their catalytic performance was rarely conducted, and the risk of the secondary pollution of toxic heavy metals was still not uncertain. In this paper, a comparison study of applying pyrite, …
Investigation of Vanadium Titanomagnetite …
Ti in vanadium titanomagnetite concentrate is converted into Na2TiO3 at below 1150°С and then forms CaTiO3 by reduction as temperature increases to about …
China Vanadium Titano-Magnetite Mining Company …
China Vanadium Titano-Magnetite Mining Company Limited intends to segregate the Mining FM activities from its upstream mining operations, to the effect that the Group will consolidate and place all the Mining FM activities as a standalone business unit which is to be managed under a newly incorporated wholly-owned subsidiary of the …
Fate of titanium in alkaline electro-reduction of sintered
A small amount of titano-hematite (TTH) is also present in the form of lamellae observed within a minority of particles [34, 39]. TTH is a solid solution within the hematite-ilmenite (Fe 2 O 3-FeTiO 3) series. ... and that the original titano-magnetite (spinel) phase is undetectable. Note that XRD peaks are sharp in this figure because this is ...
Vanadium extraction from titano-magnetite by …
Vanadium extraction from titano-magnetite by using hydrofluoric acid was put forward. The process of low intensity magnetic separation, hydrofluoric acid leaching, …
A novel method to extract iron, titanium, vanadium, and …
Vanadium titano-magnetite is an important iron ore resource containing iron, vanadium and titanium. Although iron and vanadium can be recovered by the traditional blast furnace process, titanium can only be stored in the form of TiO2 bearing slag, which resulting in a great waste of titanium resources. In the full oxygen bath smelting process ...
Reduction roasting–magnetic separation of vanadium
Vanadium–titanium magnetite ore is a kind of multi-elements-coexistent mineral which mainly contains V, Ti and Fe . Ti and Fe are symbiosis closely to each other in the ore, and V is as isomorphism hosting in the lattice of titano-magnetite. The key to utilizing this resource is efficient separation of Fe, V and Ti [2, 3].
Microwave-assisted reduction roasting—magnetic separation …
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 heating.
Investigation of Hydrometallurgical Processing of …
In the article the negative impact of titano-magnetite ore enrichment waste on the environment and the possibility of its use as vanadium-containing raw materials are …
Mechanisms and Kinetics of Solid State Reduction of Titano Magnetite
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 to be mix controlled (initially chemical reaction rate control switching to diffusional rate control at later stages) [4–6]. Currently, the general reduction process of iron ...
Investigation on Thermal Conductivity of Vanadium …
titanium slag. Vanadium titano-magnetite concentrate carbon-containing pellet for iron making is one of the new processes for smelting vanadium titano-magnetite concentrate. So far, a number of works for the study of vanadium titano-magnetite concentrate carbon-containing pellets for iron making were conducted by researchers all over the world ...
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 …
Gas-based reduction of vanadium titano-magnetite …
dium titano-magnetite by CO–H2 mixtures is limited. Thus, clarifying the reduction behaviors and mechanisms of H2–CO-based reduction of vanadium titano-magnetite is important. In this paper, vanadium titano-magnetite pellets were roasted at the temperatures ranging from 850 to 1050°C at different HH CO22 VV V/( )+ values. The influ
Hydrometallurgical Processing Technology of …
In this paper, we study the possibility of obtaining iron and titanium-vanadium concentrates with highest contents of iron and titanium, respectively, through hydrometallurgical processing of the …
Roasting Followed by Magnetic Separation: A …
Roasting Followed by Magnetic Separation: A Process for Beneficiation of Titano-Magnetite Ore. Titano-magnetite is an ore of iron and titanium, and is highly magnetic. …
(PDF) Titaniferous Magnetite Deposits Associated with …
At first, the titano magnetite cr ystallized by . magmatic process which exsolved into ulvosp inel (lamellae) and magnetite (host) at around 7000-6000C temperature.
Titanium-bearing Magnetite: Mineral information, data and …
735310a1-4665-4206-8f65-5ef377b31cee (as Titanium-bearing Magnetite) 638fda79-4914-4fc0-9169-3c497a942ec8 (as Magnetite) Chemical Properties of Titanium-bearing Magnetite Hide
Roasting Followed by Magnetic Separation: A Process for …
At respective optimum conditions, the titano-magnetite ore (O1) could yield an iron concentrate having a grade of 62.57% Fe with a Fe recovery of 60.01% while the goethitic ore (O2) could be ...
Magnetic properties of titanomagnetites and titanomaghemites
Chapter 3 dealt with intrinsic properties—those determined by the species of atoms or ions which make up the material, and their interaction with one another in the crystalline environment. Models for the magnetization process (Chapters 4 to 6), i.e. the effect of an applied field, rely on non-intrinsic microstructure, linked to material ...