In this study, extraction of aluminum-, iron-, and titanium-bearing constituents from diaspore-type bauxite ores was investigated by stepwise treatment consisting of pre-desilication via alkali-leaching of bauxite ore, extraction of alumina via Bayer process, and recovery of iron from red mud via magnetic separation. The pre …
The S/N ratios for the extraction efficiency of thorium, uranium, titanium, iron, and lanthanum are shown in Fig. 1.According to Taguchi ' s method, a high influence on extraction or separation factor is shown by a high S/N ratio. Figure 1 indicates that Cyanex272 is the best extractant for the extractions of thorium, uranium and lanthanum. …
The metallization ratio, iron grade, and iron recovery ratio of the concentrate in these cases all exceed 90%, suggesting that reductive Bayer bauxite residue exhibits superior beneficiation performance. Furthermore, sodium carbonate plays a crucial role in facilitating the separation of iron and titanium in the absence of CaO.
In this paper, magnetization roasting - low-intensity magnetic separation was performed on a pre-concentration concentrate obtained from an Australian hematite containing titanium and vanadium to realize the separation of titanium and vanadium. The results showed that an iron concentrate with TFe (total iron) grade of 58.71%, iron …
The ore is roasted under reducing conditions to selectively reduce iron. The iron is then removed by magnetic separation, and the non-magnetic material leached in hydrochloric acid. This process also enables the recovery of a titanium dioxide by-product (Zhao et al., 2014). The production of by-products such as titanium dioxide, iron metal …
As the main titanium-bearing minerals in the bauxite ore residue were titanomagnetite, kassite, and sodium tri-titanate (Fig. 2), magnetic separation process can be conducted to recover iron and titanium due to the magnetic character of titanomagnetite, and the remaining titanium could be further recovered from non …
Ilmenite is an important mineral resource containing Fe and Ti, and titanium concentrate can be obtained after beneficiation. Through the preparation of titanium concentrate oxidized pellets, gas-based shaft furnace reduction experiments, and melting and separation experiments, the phase changes during the roasting process of …
The mineral phase transformation, microstructures of reduction, and magnetic separation products were analyzed to reveal the enhanced separation mechanism of titanium and iron in beach placer.
The mineral phase transformation, microstructures of reduction, and magnetic separation products were analyzed to reveal the enhanced separation mechanism of titanium and iron in beach placer.
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 …
This page deals with the uses of titanium and its extraction from the ore, rutile. Introduction. Uses of titanium. Titanium is corrosion resistant, very strong and has a high melting point. It has a relatively low density (about 60% that of iron). It is also the tenth most commonly occurring element in the Earth's crust. That all means that ...
With 55.51% iron and 7.86% TiO 2, the ore is low-titanium beach titanomagnetite (TiO 2 < 8%) [17]. ... Therefore, the separation of titanium and iron is difficult [12], and the method of low-intensity magnetic separation was considered to remove pyroxene. Table 1.
The chlorination agents and the separation of metal chlorides were summarized. ... Thermodynamic consideration of the removal of iron from titanium ore by selective chlorination. Metall. Mater. Trans. B, 45 (4) (2014), pp. 1260-1271, 10.1007/s11663-014-0061-8. View in Scopus Google Scholar.
The separation and extraction of titanium, iron, and alumina in one spot can shorten the process and make full use of the electric energy. Under optimal conditions, the efficiencies of iron, titanium, and alumina were 97.6%, 93.1% and 88.5%, respectively. ... This is because CFA contains iron ore [2], mullite [9], and quartz [22], and can be ...
The two major aluminum-containing minerals in iron ore are kaolinite (Al 2 (Si 2 O 5 ) (OH) 4) and gibbsite (Al (OH) 3 ). Some progress has been made in using flotation to separate kaolinite from hematite. High levels of phosphorus in iron ore attract a penalty because this makes steel brittle.
The optimum condition of the experiment was obtained at 25 ±2°C, O/A 1, TBP concentration 90% and contact time of 15 minutes, with iron extraction of 99.99%, titanium extraction 1.84%, and separation factor of iron-titanium (β Fe-Ti) of 394,185. Meanwhile, the optimum condition for stripping was obtained at room temperature by …
Traditional iron and titanium separation was not a good choice. ... China is rich in total reserves of iron-containing mineral resources; however, the average grade of iron ore in China is not competitive with that in Australia and Brazil [19]. At present, a relevantly large quantities iron resources are relied on the imports due to the rapid ...
Experimental study using the conventional magnetic separation method was firstly carried out to separate iron and titanium concentrate respectively, and ultimately, …
Semantic Scholar extracted view of "Mineralogical reconstruction of Titanium-Vanadium hematite and magnetic separation mechanism of titanium and iron minerals" by Wenbo Li et al. ... Effect of bastnaesite as reductant on hematite reduction during in-situ suspension magnetization roasting of refractory iron ore under neutral atmosphere.
Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite (VTM). The effects of reduction temperature, gas composition, reduction time, grinding fineness, …
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 …
Efficient separation of vanadium, titanium, and iron from vanadium-bearing titanomagnetite by pressurized pyrolysis of ammonium chloride-acid leaching-solvent extraction process ... This paper investigated a pellet ore production process in which vanadium was extracted from vanadium and titanium magnetite concentrates using …
materials processing. titanium processing, the extraction of titanium from its ores and the preparation of titanium alloys or compounds for use in various products. Titanium (Ti) is …
Titanium ore is reduced to metallic iron and soluble titanium oxide, and then dissolved in an acid solution under hydrogen gas atmosphere to obtain a solution …
Yu et al. used a process of magnetic reduction roasting followed by magnetic separation to separate and recover iron from a low-grade carbonatebearing iron ore, and the hematite and siderite ...
Leaching and solvent extraction of total iron and titanium has been studied. A detailed investigation on quantitative leaching of the mineral and separation by solvent extraction were also carried ...
Titanium Ore Processing and Beneficiation. To develop a flowsheet for separation of high grade titanium-rutile from ilmenite, that will meet market requirements. Rutile has a SG of 4.2, hardness 6.0 to 6.5 and is non-magnetic; while ilmenite has a SG of 4.5 to 5.0, hardness of 5.0 to 6.0, and is weakly magnetic.
Enhancing Reduction Separation and Efficient Recovery of Iron, Vanadium, and Titanium for Ultra-High-Titanium Magnetite. Original Research Article. Published: …
The mineral phase transformation, microstructures of reduction, and magnetic separation products were analyzed to reveal the enhanced separation mechanism of titanium and iron in beach placer.
The main aim of this work is to utilize available materials such as ilmenite ore (as a source of titanium and iron oxides) and industrial wastes (as sources of noble metals) for preparation of ...
Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite …
Several processes for metallic titanium production that allow direct reduction of TiO 2 to commercially pure titanium were recently developed; these processes require highly pure TiO 2.Conventional upgrading processes for low-grade titanium ore, like ilmenite, cannot produce such pure TiO 2.The production cost of highly pure TiO 2, such as pigment …
Results showed that FeS and nepheline are formed by addition of Na2SO4, thereby benefiting the migration and growth of metallic iron particles in the redox system and separation of titanium and iron.
According to Table. 1, the total iron content of the raw ore is 37.72%, and the ferrous iron content is 6.07%.The REO content is 5.33%, the CaO content is 11.2%, and the F content is 6.07%. The major impurity is SiO 2 with a content of 7.4%, while MgO and Al 2 O 3 contents are 1.4% and 1%, respectively. Penalty elements such as P and S …
The separation of Fe, V, Cr, and Ti in the direct reduction products of South African vanadium–titanium magnetite has been successfully achieved by smelting …
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 ...
Titanium wires and small pieces of titanium were deoxidized to 20–60 mass ppm oxygen by use of calcium-saturated CaCl2 at a temperature of 1273 K.Trace element analysis (e.g. glow discharge mass ...
Some scholars have proposed adopting non-blast furnace ironmaking to treat sea sand ore, using coal-based direct reduction and magnetic separation to recover iron and titanium from ilmenite, and ...
Owing to the preferential liberation of iron-bearing minerals in the primary grinding, a marketable titanium magnetite concentrate can be obtained by magnetic separation via the parallel ...