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In order to further recover vanadium and titanium in vanadium‑titanium magnetite, sodium salt was usually added in the roasting process, and the recovery of iron, vanadium, and titanium were up to 93.67%, 72.68%, and 99.72%, respectively [11]. However, the sodium in the sodium salt is easily reduced to metallic sodium and overflows, thereby corroding the furnace …
Recovering vanadium from vanadium titanium-magnetite (VTM) ore using (NH4)2C2O4 is a clean hydrometallurgical process, but the drawback is the low recovery and slow kinetics due to the formation of inhibitor. A novel energy-efficient mathematical model was derived for green leaching of VTM in which the mechanical activation (MA) removed the …
The main products of vanadium-titanium magnetite beneficiation are titanium iron concentrate (iron ore) containing about 50% of titanium in V-Ti magnetite, ilmenite concentrate …
Vanadium titano-magnetite (VTM) is a significant resource in China—analysis shows that China possesses approximately 10 billion tons of VTM. In this study, we characterize VTM''s isothermal ...
Electrode materials derived from vanadium possessing variable valence states, open structures and high theoretical capacities are considered as low-cost and high-performance energy …
Vanadium pentoxide was produced by using vanadium titano-magnetite concentrate through the process of salt roasting, leaching, and molybdenum precipitation, and ferrovanadium smelting was done in electric furnace. This entailed high consumption of raw materials and low production efficiency. In the 1960s–1970s, the process of vanadium slag ...
DOI: 10.1016/J.MINPRO.2016.09.012 Corpus ID: 100526996; Vanadium extraction from titano-magnetite by hydrofluoric acid @article{Zhu2016VanadiumEF, title={Vanadium extraction from titano-magnetite by hydrofluoric acid}, author={Xiao-bo Zhu and Wang Li and Xuemao Guan}, journal={International Journal of Mineral Processing}, year={2016}, volume={157}, pages={55 …
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 mineral which primarily contains iron, vanadium, …
South African vanadium–titanium magnetite is a complex mineral resource rich in iron, vanadium, titanium, and chromium [1,2,3] s ore composition is composed of more than 20 elements [4,5,6] 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.
Vanadium extraction from titano-magnetite by using hydrofluoric acid was put forward. The process of low intensity magnetic separation, hydrofluoric acid leaching, co-precipitation with NaOH, roasting with Na 2 CO 3, circulating water leaching and precipitation of vanadium has been investigated.The results show that over 85% vanadium could be directly …
Vanadium is usually extracted from ores, concentrates and slags by roasting with sodium carbonate or another sodium salt to convert vanadium into water soluble sodium vanadates. …
Recovering vanadium from vanadium titanium-magnetite (VTM) ore using (NH4)2C2O4 is a clean hydrometallurgical process, but the drawback is the low recovery and slow kinetics due to the formation ...
Black shale represents a unique and strategic vanadium resource in China, accounting for ~ 90% of the nation''s vanadium reserves. The complex forms of occurrence of vanadium in black shale, particularly its incorporation into aluminosilicate mica via isomorphism, render it tightly bound and challenging to extract. Against the backdrop of green metallurgy and …
Vanadium does not form concentrated deposits like other metals such as copper, nickel or zinc. It is widely dispersed in the Earth''s crust, with V 3+ replacing Fe 3+ or Al 3+ in a number of minerals. Vanadium as V 3+ can substitute for Fe 3+ in magnetite (Wenk and Bulakh, 2004); vanadium(III) and iron(III) ions have near identical ionic radii in octahedral sites …
Yuhang Dai#, Chengyi Zhang#, Jianwei Li#, Xuan Gao#, Ping Hu, Chumei Ye, Hongzhen He, Jiexin Zhu, Wei Zhang, Ruwei Chen, Wei Zong, Fei Guo, Ivan P. Parkin, Dan J. …
In this study, vanadium titanomagnetite is used as a raw material, carbon pellets are used internally, and a direct reduction-smelting technology is applied. The disadvantage is …
Adding CaF2 or NaF of 3% to vanadium titano-magnetite carbon composite pellets can decrease the apparent activation energy of reduction, and the decrease extent was 14. 95 and 15. 79 kJ/mol ...
Vanadium titano-magnetite (VTM) is a typical multi-metal composite ore resource rich in iron, titanium, and vanadium. It is widely distributed in China, Russia, Indonesia, New Zealand, and other regions [1].The vanadium contained in VTM has extensive applications in aerospace and mechanical manufacturing, while titanium, due to its high temperature and …
Vanadium titano-magnetite (VTM) is a multi-metal ele-ment composite of metal minerals, and it has extensive utilization value because it is the main carrier of iron, vanadium, and titanium.1,2) VTM exhibits a dense structure and complex interaction between valuable elements, and thus valuable metals cannot be directly extracted from it.3,4)
Vanadium-containing titanium magnetite is the main source of V and Ti in the internal market. About 75% Fe, 82% V, and 44% Ti pass into iron concentrate during ore enrichment [].Therefore, the question of how to improve comprehensive utilization of vanadium-titanium magnetite concentrate (VTMC) is of decisive importance for the vanadium and …
Was macht Titan für die Luft- und Raumfahrt, für medizinische Implantate und für alltägliche Gegenstände wie Küchengeräte unverzichtbar? Dieser Artikel befasst sich mit den einzigartigen Eigenschaften von Titan, …
The release of V from vanadium titano-magnetite, a predominant natural source of V, was studied under light irradiation. The release rate of V from vanadium titano-magnetite was accelerated by light irradiation, and the oxidation of V was detected. The essence of the photopromoted release of V is that the immobile low valence V is transformed to the mobile …
Vanadium titano-magnetite (VTM) is a multielement mineral, and it includes iron, titanium, and vanadium elements with small amounts of chromium, cobalt, nickel, etc. [50]. Traditionally, VTM was taken to be one of the most important materials for industry [ 51 ], while recently it was considered a catalyst due to its unique physical and chemical properties [ 52, 53 ].
Vanadium and titanium are important strategic metals that can be used in spaceflight, national defense, transporta-tion, and the chemical industry [1]. According to statistics, vanadium titano-magnetite ore is one of the largest re-sources of vanadium and titanium, and the vanadium tita-no-magnetite reserves in China total approximately ten bil-
Vanadium, veraltet auch Vanadin, ist ein chemisches Element mit dem Symbol V und der Ordnungszahl 23. Es ist ein stahlgraues, bläulich schimmerndes, in reinem Zustand sehr weiches Übergangsmetall.Im Periodensystem bildet das …
Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite (VTM).
Jiang [27] investigated the leaching process of vanadium and chromium by sodium salt (Na 2 CO 3) roasting-(NH 4) 2 SO 4 leaching, the results showed that 94.6% vanadium and 96.5% chromium were leached out.Zhang [28] leached out vanadium from stone coal with 6 wt.% NaCl and 10 wt.% Na 2 SO 4 as roasting additive.During the roasting process, …
This study presents an effective and cleaner process with hydrogen-rich gases that uses oxidation roasting followed by gas-based direct reduction and melting separation to …
Keywords Vanadium · P204/P507 · Synergism · Solvent extraction 1 Introduction Vanadium is an important rare metal, which plays a critical role in the production of steel [1 ], catalysts [2 ], and batteries [3]. In China, vanadium is mainly derived from the vana-dium-bearing titanomagnetite deposited in the Panxi area of
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 ...
Titaniferous magnetite hard rock deposits are common throughout the world. Previously they have been processed to recover vanadium using the standard salt roast process, however the …
Low grade P-Containing vanadium titano-magnetite tailings from iron and titanium separation in the Miyi Region were treated using a direction flotation process. The separation indexes of phosphorous concentrate with a P 2 O 5 grade of 31.25% and P 2 O 5 recovery of 87.94% were obtained, realizing the recovery of valuable element phosphorous.
To achieve high efficiency utilization of Panzhihua vanadium titano-magnetite, a new process of metalizing reduction and magnetic separation based on hot briquetting is proposed, and factors that affect the cold strength of the hot-briquetting products and the efficiency of reduction and magnetic separation are successively investigated through …
The release of V from vanadium titano-magnetite, a predominant natural source of V, was studied under light irradiation. The release rate of V from vanadium titano-magnetite was accelerated by ...
Lightweight foamed ceramics were prepared using 55 wt.% vanadium-titanium magnetite tailings (VTMT) followed by sintering at 1130 °C. In the CaO-MgO-SiO2-Al2O3 …
Titan (Vanadium ON) Overview: In January 2010, Prophecy Resource Corp. (now Prophecy Coal) entered into an option agreement with Randsburg International Gold Corp., whereby Prophecy assumed an 80% interest in the Titan Vanadium-Titanium-Iron. The Titan project is located in eastern Ontario, approximately 120 km east-northeast of Sudbury.
Vanadium (V) is a widely distributed and potentially dangerous pollutant in soils. However, the extraction methods for bioavailability of V in soils have not been unified. This study focused on ...