Blast furnace process is the main approach for utilizing vanadium–titanium magnetite (VTM) and VTM pellet is an important burden due to its excellent performance. In …
Vanadium–titanium magnetite is a complex ore with iron, vanadium, titanium, and other valuable elements, and it is of great significance to recycle the valuable elements. HIsmelt smelting reduction of vanadium–titanium magnetite is a clean and effective ironmaking process. The effect of TiO2 content on the viscosity of CaO–SiO2–Al2O3–MgO–TiO2–FeO …
The effect of calcium oxide on the crushing strength, reduction, and smelting performance of high-chromium vanadium–titanium magnetite pellets (HCVTMP) was studied in this work. The main characterization methods of an electronic universal testing machine (EUTM), X-ray fluorescent (XRF), inductively-coupled plasma-atomic emission spectroscopy …
Aluminium smelting plant, Tursunzoda, Tajikistan ... people became adept at smelting copper ores, a process that involves heating copper-rich minerals to high temperatures. Early smelting furnaces were ... typically hematite or magnetite, in a furnace. The high temperatures required (over 1500°C) posed significant challenges. Early iron
An innovative process of blast furnace (BF) operation involving charging with low-titanium vanadium–titanium magnetite carbon composite hot briquette (LVTM-CCB) was proposed for utilizing LVTM and conserving energy. In this study, the effect of LVTM-CCB charging ratio on the softening, melting, and dripping behaviors of the mixed burden was …
In response to the problem of rich vanadium–titanium magnetite (VTM) resources in China contrasting with low blast furnace utilization, a HIsmelt process for smelting VTM is proposed. ... a HIsmelt process for smelting VTM is proposed. The influence of the process parameters on smelting reduction is analysed under laboratory conditions by ...
The high-temperature interactions between vanadium-titanium magnetite carbon composite hot briquettes (VTM-CCBs) and pellets were systematically investigated under simulated blast furnace conditions with respect to the reduction behavior, softening–melting–dripping characteristics, gas permeability, and Ti(C, N) precipitation …
The results showed that the reasonable smelting parameters for vanadium–titanium magnetite smelting of the process introduced in the paper were above 1450 °C of smelting temperature, above 0.8 ...
The main component of titanium iron concentrate is magnetite. For titanium iron concentrate in Panzhihua, the content of iron is about 50%, and the content of TiO 2 is about 12%. Three process methods, namely the Blast Furnace iron making process, the rotary kiln-electric furnace process, and the reduction-magnetic separation process, dominate the …
The slag ing caused by Ti(C,N) is the main limitation of smelting vanadium–titanium magnetite by blast furnace. COREX, with unique pure oxygen injection that avoids the formation of Ti(C,N), has a huge potential advantage for the smelting of vanadium–titanium magnetite. In the present study, the detailed characterization was …
vanadium-titanium magnetite, especially in the titanium extraction, and the existing problems are also introduced. The authors predict its possible tendency of devel- ... smelting process is a method of separation of titanium and iron by electric furnace. It is principally similar to the blast furnace iron making process but is simpler in
In the BF-smelting process, the shape and position of the cohesive zone have significant impacts on the gas flow distribution and reduction process, thus indirectly affecting the economic and ...
Slag viscosity with flux was also simulated. Viscosity is useful information in the smelting process because slag with high fluidity is easier to promote the reaction kinetics.
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 important way to reduce CO2 emission under the background of low carbon metallurgy. In this paper, the softening–melting behaviors of VTM sinter in …
DOI: 10.1016/j.seppur.2024.127495 Corpus ID: 269132843; Value-added recycling of iron and titanium from bauxite residue (Red Mud) via a flux-free smelting separation process
Efficient utilization of vanadium–titanium magnetite can be achieved by high-temperature pyrometallurgical smelting separation of the material. The fusibility of …
For smelting of titanium rich slag, the low-ash reducing agents were used, i.e., some oxides (SiO 2, Al 2 O 3, CaО and MgO) convert into the slag and impoverish target product - slag.The low electrical conductivity and ash content of the reducing agent ensures a high electrical resistance of the charge, a deep fit of electrodes, a stable electrical mode and a …
Smelting slag from mineral process and blast furnace process to vanadium titanium magnetite is a kind of precious secondary resource in which TiO2 content is higher than 20%.
The effect of TiO2 on the crushing strength for high-Cr V-Ti magnetite pellets was studied in this paper. On one hand, the crushing strength obviously decreased with the increasing TiO2 contents. On the other hand, the crushing strength had an obvious increase after grinding treatment for the high-Cr V-Ti magnetite and titanium concentrate. It is found that the …
To comprehensively utilize the low-iron high-vanadium–titanium magnetite, a new method of vortex smelting reduction of vanadium–titanium magnetite was proposed, and the enrichment and ...
The oldest, and still the most common smelting process for oxide ores involves heating them in the presence of carbon. Originally, charcoal was used, but industrial-scale smelting uses coke, a crude form of carbon prepared by pyrolysis (heating) of coal. The basic reactions are: [MO + C rightleftharpoons M + CO label{2.1}]
In response to the problem of rich vanadium–titanium magnetite (VTM) resources in China contrasting with low blast furnace utilization, a HIsmelt process for smelting VTM is proposed. The influence of the process parameters on smelting reduction is analysed under laboratory conditions by simulating smelting reduction.
HIsmelt is well suited for smelting vanadium–titanium magnetite due to its flexibility in feedstock selection and tolerance to high viscosity slag, compared with the blast furnace.
Laboratory-scale test work was conducted to study the effect of the CaO to MgO ratio on the carbothermic smelting of titaniferous magnetite (titanomagnetite) for the recovery of titanium.
In response to the problem of rich vanadium–titanium magnetite (VTM) resources in China contrasting with low blast furnace utilization, a HIsmelt process for smelting VTM is proposed. …
smelting of vanadium–titanium magnetite and refractory substrates ... smelting process were VTM, anthracite, and sodium car-bonate additive. The VTM was from Chaoyang, Liaoning, China, and its chemical composition is shown in Table 1. The …
The results showed that the reasonable smelting parameters for vanadium–titanium magnetite smelting of the process introduced in the paper were above 1450 °C of smelting temperature, above 0.8 ...
In this study, the pre-reduction impact of CO and H 2 on vanadium–titanium magnetite (VTM) was examined considering the composition of the top gas of the melting furnace. Additionally, the recycled and upgraded tail gas from the rotary kiln was mixed with the top gas of the melting furnace to enhance the pre-reduction effect and meet the temperature …
of vanadium–titanium magnetite in the existing smelting process. The process is composed of two parts: the pre-reduction process of vanadium–titanium magnetite in the rotary kiln and the slag–iron separation process in the pure oxygen bath smelting furnace. Firstly, a certain proportion of vanadium–titanium magnetite, coal and fluxes ...
The results showed that the reasonable smelting parameters for vanadium–titanium magnetite smelting of the process introduced in the paper were above 1450 °C of smelting temperature, above 0.8 ...
Titanium-bearing magnetite ore is generically defined as magnetite with > 1% titanium dioxide (TiO 2) and is usually vanadium-bearing. The iron and ... chloride process, but excessive waste streams would be generated. Smelting is the most effective way of ... Pilot-plant smelting test work was conducted
Smelting Vanadium–Titanium Magnetite by COREX Process: Effect of V–Ti Bearing Pellet Ratio on the Softening and Melting Behavior of Mixed Burden CHEN YIN, SHENGFU ZHANG, XUKE YANG, WANNENG YUAN, WENZHOU YU, LIANGYING WEN, TAO LI, and CHENGUANG BAI The slag ing caused by Ti(C,N) is the main limitation of smelting vanadium–titanium
Titaniferous magnetite hard rock deposits are common throughout the world. Previously ... When the hydrometallurgical process plants are built, then the titanium industry supply balance will change. The increased price ... resulting from smelting concentrates (see Table 2 and Figure 1). Titaniferous magnetites
