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Two main lines of attack are available. The ironsand can be worked for its iron content, and the titanium and vanadium recovered from the slags and residues obtained in producing and …
Semantic Scholar extracted view of "Value-added recycling of iron and titanium from bauxite residue (Red Mud) via a flux-free smelting separation process" by Guanghui Li et al. ... High-Efficiency Smelting Separation of Vanadium–Titanium Magnetite by Electrothermal Smelting: Parameter Optimization and Element Enrichment Mechanism. Quan Shi ...
The jarosite crystallization and new extractant system for extractant 7101 was used to separate iron and extract vanadium from titanium white waste liquid (TWWL). The influence factors and mechanisms of crystallization and solvent extraction were investigated and analyzed using SEM-EDS, XRD, FT-IR, …
1. Introduction. Red mud is a typical nonferrous metallurgical solid waste as the tailings produced in the process of smelting alumina from bauxite [1].The discharge of red mud will increase with an increase of demand for alumina products and a decrease of bauxite ore grade around the world [2, 3].Red mud is an important secondary mineral resource including a …
In contrast, VTM is a multi-metallic iron-based ore containing iron, titanium, and vanadium as the main constituents [24, 25]. Since VTM has a high iron and titanium content, …
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 ...
Cleaner and effective extraction and separation of iron from vanadium slag by carbothermic reduction–chlorination–molten salt electrolysis J. Clean. Prod., 284 ( 2021 ), Article 124674, 10.1016/j.jclepro.2020.124674
Efficient separation of vanadium, titanium and iron from vanadium-bearing titanomagnetite by pressurized pyrolysis of ammonium chloride-acid leaching-solvent extraction process.
Chrome-vanadium slag mainly consisted of iron, chromium, vanadium, silicon, titanium, manganese, magnesium, calcium and aluminum. The contents of V 2 O 3 and Cr 2 O 3 were 11.7 % and 14.47 ... Influence of impurities on separation of vanadium and chromium. (a) Extraction ratios of Cr 2 O 3 /V 2 O 5 and product purities; (b) Element contents of ...
Semantic Scholar extracted view of "Separation of titanium from vanadium and iron in leach solutions of vanadium slag by solvent extraction with ctyl tertiary amine (N235)" by Zhifeng Qin et al.
Fig. 4 and Fig. 5 show the effect of CO concentration on the reduction of vanadium hematite and separation of iron and titanium minerals with the reduction roasting temperature of 580 °C, total gas-flow rate of 1.8 m 3 /h, reduction roasting time of 15 min, and when the roasted product with the grinding fineness of −0.043 mm accounts for 82.85%.
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 derived from the vanadium-titanium magnetite …
1. Introduction. Vanadium and titanium magnetite ores are being smelted in a blast furnace, and the resulting iron liquid is refined in a converter to produce vanadium slag [1], [2].The vanadium slag undergoes sodium roasting and water leaching to produce an extracted vanadium tailing [3], [4].The total amount of extracted vanadium tailings in China exceeds 0.6 …
Vanadium titanomagnetite (VTM) is a valuable multi-element symbiotic ore mainly composed of iron, vanadium, and titanium, as well as small amounts of chromium, nickel and cobalt [1,2,3].The global resource …
A novel process for recovery of aluminum, iron, vanadium, scandium, titanium and silicon from red mud was proposed. The parameters of HCl leaching, solvent extraction, polymerization process, alkali leaching with pressure, and aging process were investigated.The results show that more than 96 % of scandium and vanadium could be leached by using HCl …
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 reconstitution regularity of Ti-bearing phases in the slag was investigated through X-ray fluorescence spectrometry, X-ray photoelectron spectroscopy, X-ray diffraction …
Reduction roasting with sodium sulfate followed by magnetic separation was investigated to utilize vanadium tailings with total iron grade of 54.90 wt% and TiO2 content of 17.40 wt%. The results show that after reduction roasting–magnetic separation with sodium sulfate dosage of 2 wt% at roasting temperature of 1150 °C for roasting time of 120 min, …
This study addressed the separation and recovery of vanadium(IV), iron, and titanium from synthetic and real leach solutions of vanadium-bearing titanomagnetite using extractant P204 (di-(2-ethylhexyl) phosphate) and P507 (2-ethylhexyl hydrogen-2-ethylhexyl phosphonate). Based on the speciation analysis of vanadium in sulfuric acid medium, the …
Thus, the selective separation of chromium and vanadium is essential for ensuring the quality of the vanadium product and improving the resource utilization, environmental effect, and process economy of the vanadium-titanium industry. ... A novel process for recovery of iron, titanium, and vanadium from titanomagnetite concentrates: …
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 value.
The results showed that the effective selective separation of vanadium, iron and titanium could be obtained in which 97.39% V and 88.62% Fe were dissolved into the solution and over 91.76% Ti was ...
Optimal roasting conditions for iron/slag separation were achieved with a mixture thickness of 42.5 mm, a roasting temperature of 1200°C, a residence time of 2 h, a molar ratio of C/O of 1.7, and a sodium carbonate addition of 70wt%, as well as with the use of anthracite as a reductant. ... The total recoveries of iron, vanadium, and titanium ...
metal oxides, including lithium, vanadium and titanium. The process leaches titanium, vanadium and iron using hydrochloric acid at atmospheric pressure and temperatures below 95°C. Solvent extraction is then used to recover vanadium, titanium pigment and iron from the leach solution. The advantages claimed are low cost, high recovery, no
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 mostly isomorphic to …
At the same time, the efficient utilization of valuable components such as iron, vanadium, titanium, and chromium in vanadium-titanium magnetite can also alleviate the problems caused by mineral ...
In order to realize the comprehensive and efficient recovery of vanadium–titanium magnetite, a mass action concentration calculation model for direct melting reduction was established, and the mechanisms and limiting factors for the separation and enrichment between Fe, V, and Ti were also studied through molten vortex direct reduction experiments. The mass …
Effects of basicity of the high titanium slag on the recovery of iron and vanadium, the separation behaviors between iron and slag, as well as the slag ing behavior during the smelting process ...
DOI: 10.1016/j.apt.2021.103408 Corpus ID: 245696675; Mineralogical reconstruction of Titanium-Vanadium hematite and magnetic separation mechanism of titanium and iron minerals
The separation of titanium (Ti) (IV) in acidic leach solutions of vanadium slag by solvent extraction with ctyl tertiary amine (N235) is proposed. Because the leach solutions contain a lot of vanadium (V) and iron (Fe) impurities, the effects of various conditions on the separation of Ti, V, and Fe were investigated.
The titanium white waste liquid (TWWL) is a waste acid from the industrial production of titanium white from vanadium titano-magnetite by physical separation, sulfuric …
