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 …
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 ...
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Compared with the vanadium–titanium magnetite in China's Panzhihua and Chengde and Russia, New Zealand, and South Africa,[4–11] this mine not only has an ultra-low-grade vanadium–titanium magnetite, but also the characteristics of high vanadium and ultra-high titanium.[3,12–14] This mine is a composite iron ore
Keywords Vanadium–titanium magnetite · Smelting separation · Electric furnace smelting · Ecient utilization of iron ore Introduction South African vanadium–titanium magnetite is a complex mineral resource rich in iron, vanadium, titanium, and chro-mium [1–3]. Its ore composition is composed of more than 20 elements [4–6].
@article{Qin2019SeparationOT, title={Separation of titanium from vanadium and iron in leach solutions of vanadium slag by solvent extraction with trioctyl tertiary amine (N235)}, author={Zhifeng Qin and Guoquan Zhang and Dongmei Luo and Chun Li and Hairong Yue and Bin Liang}, journal={Hydrometallurgy}, year={2019}, url={https://api ...
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 ...
Enhancing Reduction Separation and Efficient Recovery of Iron, Vanadium, and Titanium for Ultra-High-Titanium Magnetite. Article. Enhancing …
Vanadium titanomagnetite (VTM) is an important mineral for developing titanium resources, but the comprehensive recovery of ilmenite separation is extremely poor, resulting in the low-efficiency utilization of titanium resources. Here, the separation of ilmenite from VTM ore is studied by combining magnetic separation and flotation …
1. Introduction. Vanadium (V) and titanium (Ti) are important strategic metals, which are widely used in metallurgical industry, chemical industry, machinery manufacturing, battery, aerospace, etc. [[1], [2], [3], [4]].As a representative resource for extracting V and Ti, vanadium–titanium magnetite (VTM) is a polymetallic symbiotic …
The result shows that 95.87% of vanadium and 80.13% of iron could be extracted, while that of titanium was only 9.68% under the condition of first-order …
For example, the leaching efficiency of vanadium and iron was more than 80%, while the leaching efficiency of titanium was less than 5% from vanadium titanomagnetite by acid leaching with hydrochloric acid of an appropriate concentration, which could realize the effective separation of titanium and vanadium.
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 …
Separation of titanium from vanadium and iron in leach solutions of vanadium slag by solvent extraction with trioctyl tertiary amine (N 235) Hydrometallurgy (2019) ... This study reveals vanadium separation from iron due to pyrite passivation in presence of oxalic acid at an atomic level. View all citing articles on Scopus.
The present process can effectively separate vanadium, titanium, iron, and magnesium and synthesize anhydrite products realizing the cleaner utilization of …
The leaching rates for iron and vanadium are 97.5% and 90.8%, respectively. To be clear, the concentrations of the elements in the leaching solution are shown in Table 3. Titanium was hardly detected in the leaching solution, indicating its near recovery rate.
The separation of titanium (Ti) (IV) in acidic leach solutions of vanadium slag by solvent extraction with trioctyl 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.
Titanium can be alloyed with aluminium, vanadium and other elements to produce strong lightweight alloys for aerospace, automobile, industrial process, agri-food and other …
Abstract. We present an optimized magnetic separation process to improve the recovery of high-content vanadium and titanium concentrates from vanadium‑titanium magnetite (VTM) ore. The ore chunks were crushed using jaw …
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, …
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 …
DOI: 10.1016/j.seppur.2020.117169 Corpus ID: 219743539; Efficient separation of vanadium, titanium, and iron from vanadium-bearing titanomagnetite by pressurized pyrolysis of ammonium chloride-acid leaching-solvent extraction process
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 remained in leaching residue after leaching at 0.5 M H 2 SO 4, 110 °C for 1 h, then added 10% iron powder and continue to leaching for 2 h. Tafel ...
1. Introduction. Vanadium, titanium and chromium are significant strategic metals which are widely used in aerospace, energy and alloy fields, etc. [].Vanadium slag (VS) is a by-product of smelting vanadium titanomagnetite, which is mainly composed of vanadium, titanium, chromium, iron, manganese and silicon [2,3].However, as a high …
DOI: 10.1016/j.seppur.2022.120627 Corpus ID: 246668804; New understanding of extraction and separation of vanadium(IV), iron and titanium using iron powder induction-leaching and P204-P507 synergistic extraction
Abstract. Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano …
Vanadium(IV), iron, and titanium were selectively separated and recovered from the acid leachate of vanadium-bearing titanomagnetite by solvent extraction with …
The iron powder concentrates with 94.07% total Fe and vanadium-rich titanium slag with 36.32% Ti were obtained by grinding magnetic separation as the grinding alkalinity pH was 13. View Show abstract
The separation of iron from the titanium product proved to be high, with > 90 pct of iron removed after the initial reduction. The iron removal increased slowly to almost 100 pct when elemental ...
The separation and recovery of chromium from solution after vanadium precipitation were investigated by deep removal of vanadium, hydrolysis precipitation of chromium, and preparation of chromium oxide. Hydrous oxide of trivalent iron is an effective deep vanadium remover and can be recycled. Under the most suitable conditions …
