• Kinetic study of the reaction of vanadium and vanadium ...

    Kinetic study of the reaction of vanadium and vanadium–titanium oxide cluster anions with SO2 Article (PDF Available) in Physical Chemistry Chemical Physics 14(41):14344-53 September 2012 ...

  • Efficient Extraction of Vanadium from Vanadium–Titanium ...

    the vanadium extraction from the vanadium–titanium magnetite concentrate. At the same time, phase transformation analyses were conducted to reveal the mechanism by which potassium salt strengthens the vanadium extraction and the kinetics model was established to further explain the effect of potassium salt. 2. Experimental 2.1. Materials

  • Cited by: 6
  • Efficient Extraction of Vanadium from Vanadium–Titanium ...

    In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate. Meanwhile, the mechanisms of potassium salt roasting and acid leaching kinetics were investigated. The results indicate that potassium salt roasting additives are more efficient than sodium and calcium salt and that K2SO4 works best.

  • Cited by: 6
  • Solid-state reduction kinetics and mechanism of pre ...

    The solid-state reduction kinetics of pre-oxidized vanadium-titanium magnetite concentrate was studied. The phase and microstructure of the reduction product were characterized by XRD, SEM and EDS methods, based on which the mechanism of the solid-state reduction was investigated.

  • Cited by: 25
  • Kinetics and mechanism of oxide formation on titanium ...

    Oxidation kinetics of thin films of titanium, vanadium and chromium in the temperature range 310–630 °C have been studied using backscattering spectrometry and X-ray diffraction. The growing oxides are Cr 2 O 3 and TiO 2 for the oxidation of chromium and titanium films respectively.

  • Cited by: 18
  • Vanadium - Wikipedia

    The most common alloy for seamless tubing is Titanium 3/2.5 containing 2.5% vanadium, the titanium alloy of choice in the aerospace, defense, and bicycle industries. Another common alloy, primarily produced in sheets, is Titanium 6AL-4V, a titanium alloy with 6% aluminium and 4% vanadium. Several vanadium alloys show superconducting behavior.

  • Pronunciation: /vəˈneɪdiəm/ ​(və-NAY-dee-əm)
  • Kinetic study of the reaction of vanadium and vanadium ...

    The role of cluster size and composition is investigated by studying the reaction kinetics of larger (V 6 O 15 − and V 8 O 20 −) and titanium doped (V 3 TiO 10 − and V 2 Ti 2 O 10 −) vanadium oxide clusters with SO 2. The observed cluster size and composition dependencies are discussed.

  • Application of Sharp Analysis on Reduction Kinetics of ...

    Abstract. The isothermal reduction kinetics of vanadium titanium magnetite sintering ore was investigated by thermo-gravimetric analysis at a temperature range of 1123–1223 K under 30% CO + 70% N 2 gas mixtures. The apparent activation energy of reduction was calculated by iso-conversional method and its value is 36.7 kJ/mol.

  • Influence of Edge- and Basal-Plane Sites on the Vanadium ...

    The reaction kinetics of VII/VIII and VIVO2+/VVO2+ redox on carbon electrodes in sulfuric acid limit the development of vanadium redox flow batteries (VRFB) with high power and efficiency characteristics. Cyclic voltammetry and symmetric flow cell measurements on selectively masked graphite foil and highly oriented pyrolytic graphite electrodes revealed that edge carbon sites provide faster ...

  • Kinetics of the reaction between titanium(III) and

    The kinetics of the one-equivalent reaction between titanium and vanadium(), Ti+ V Ti+ V, have been studied bystopped-flow spectrophotometry. The rate is independent of chloride-ion concentration over the range up to 05 investigated (replacement of perchlorate by chloride). Subsequently hydrochloric acid

  • Kinetics of Vanadium Carbonitride Precipitation in Steel ...

    We have constructed a computer model of the precipitation kinetics of vanadium carbonitride in steel that takes into account the composition evolution of the precipitates with time. The model takes advantage of the fast diffusion of nitrogen and carbon compared to niobium to derive the composition, size and rate of formation of the precipitates ...

  • Vanadium(V) oxide - Wikipedia

    Vanadium(V) oxide (vanadia) is the inorganic compound with the formula V 2 O 5. Commonly known as vanadium pentoxide, it is a brown/yellow solid, although when freshly precipitated from aqueous solution, its colour is deep orange.

  • Modelling of Kinetics of Isothermal Allotriomorphic and ...

    Modelling of Kinetics of Isothermal Allotriomorphic and Idiomorphic Ferrite Formation in Medium Carbon Vanadium–Titanium Microalloyed Steel Abstract: A theoretical model is presented in this work to calculate the evolution of austenite-to-allotriomorphic and idiomorphic ferrite transformation as a function of time in medium carbon vanadium–titanium microalloyed steel.

  • Kinetic and mechanistic analysis of toluene ammoxidation ...

    The kinetics of toluene ammoxidation to benzonitrile on a vanadium-titanium oxide (V-Ti-O) catalyst were studied, using a tubular-flow, stacked-pellet reactor. The reactions of benzonitrile and carbon dioxide formation exhibit approximately first-order with respect to the hydrocarbon partial

  • The Kinetics Test of Vanadium-Titanium Magnetite Iron

    Abstract. To obtained high titanium slag and so as to improve the comprehensive value of sea sand ore, we used smelting reduction technology and all vanadium-titanium magnetite iron ore

  • (PDF) Non-isothermal reduction mechanism and kinetics

    Non-isothermal reduction kinetics and mechanism of high chromium vanadium-titanium magnetite pellets were studied at 400-1100 degrees C, simulating the lumpy zone of blast furnace conditions.

  • Solid-state reduction kinetics and mechanism of pre ...

    vanadium−titanium magnetite concentrate is more complicated than other common ores, requiring higher temperature and longer reduction time to achieve a relatively high metallization ratio [9]. Hence, it is important to investigate the reduction kinetics and mechanism of the vanadium−titanium

  • Non-isothermal reduction mechanism and kinetics of high ...

    the reduction mechanisms of vanadium-titano-magne-tite-coal mixed pellets by analysing the activation energy values calculated based on the mass action law. However, study on the reduction behaviour and kinetics mechanism of HCVM pellets has remained elusive. In the present work, high chromium vanadium– titanium magnetite pellets (HCVMP ...

  • Exotic Thermite Series Ep. 3: Zirconium, Vanadium ...

    2017-11-06  Hey hey, everyone! Welcome back to the third episode in The Exotic Thermite Series! Let me know what you think and be sure to subscribe for new

  • The Influence of Titanium and Vanadium on Isothermal Growth ...

    vanadium and titanium microalloying additions in the growthkinetics of allotriomorphic ferrite in medium carbon-manganese steel. Experimental results suggest that vanadium does not affect the isothermal growth kinetics of allotriomorphic ferrite whereas titanium speeds it up. However, the combined addition of vanadium (0.13mass%) and titanium ...

  • Oxidation induration process and kinetics of Hongge ...

    The induration process and oxidation kinetics of Hongge vanadium titanium-bearing magnetite (HVTM) pellets have been investigated by employing X-ray diffraction, scanning electron microscope, energy-dispersive spectroscopy, thermogravimetric and differential thermal analysis and thermogravimetric and differential scanning calorimetry.

  • Kinetics of vanadium carbonitride precipitation in steel ...

    carbon during the precipitation of vanadium results in the formation of vanadium carbonitrides [2]. The ratio of C/N in the precipitates depends on the alloy composition and the thermal cycle. A comprehensive model of vanadium precipitation kinetics must take this fact into account and determine the following: • Composition of the nuclei.

  • CN105112689A - Method for extracting titanium from ...

    The invention discloses a method for extracting titanium from vanadium-titanium magnetite. The method comprises the following steps: adding sodium or potassium salt additive in the reduction smelting of an iron ore concentrate electric stove to obtain liquid iron and titanium-containing slag, wherein vanadium and iron are reduced to enter liquid iron, under a smelting high temperature ...

  • FUTURE PRODUCER OF IRON, VANADIUM AND TITANIUM

    FERRO-VANADIUM 5 200 t / year Vanadium is a metallurgical additive whose main property is to considerably strengthen the steel with which it is mixed. • 1 kg of vanadium in a ton of steel doubles the strength of steel • Reduces steel requirements, therefore

  • Influence of Edge- and Basal-Plane Sites on the Vanadium ...

    The reaction kinetics of VII/VIII and VIVO2+/VVO2+ redox on carbon electrodes in sulfuric acid limit the development of vanadium redox flow batteries (VRFB) with high power and efficiency characteristics. Cyclic voltammetry and symmetric flow cell measurements on selectively masked graphite foil and highly oriented pyrolytic graphite electrodes revealed that edge carbon sites provide faster ...

  • Adsorption kinetics and isotherm of vanadium with

    During the reaction process, the vanadium ions were adsorbed on the surface of the melamine and formed the precipitation as cubic shapes shown in Figure 6. It was an evidence that the adsorption kinetics could be described by the pseudo-second-order model which usually describes the surface reaction process.

  • The effects of vanadium, niobium, titanium and zirconium ...

    The evolution of precipitation and microstructure during a simulation of the thin slab direct rolling process, in six vanadium based, low carbon, steels with V, V-N, V-Ti-N, V-Nb, V-Nb-Ti and V-Zr additions was studied by optical microscopy, analytical transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDAX) and parallel electron energy loss spectroscopy (PEELS).

  • titanium magnetite vanadium - mattlounge.co.za

    BBIG – Balla Balla Vanadium. The BBIG – Balla Balla Vanadium-Titanium-Magnetite Processing Complex – Western Australia - Project Profile is part of Timetric's database of 82,000+ construction projects. Our database includes a 10+ year archive of completed projects, full coverage of all global projects with a value greater than $25 million ...

  • Asian Metal - Vanadium prices, news and research

    Asian Metal provides comprehensive coverage and analysis of the global vanadium industry. Professional reliable reports outline the latest trends and developments, keen precise price analysis keeps you at the cutting edge of the market, and exclusive statistics on both imports exports as well as production and marketing provide the tools to take your business to the next level.

  • U.S. Vanadium LLC

    U.S. Vanadium, which operates the Hot Springs, Arkansas high-purity vanadium processing facility, is comprised of global leaders and investors in the specialty chemicals and strategic materials sectors, including in the mining, processing, purification, and sales and distribution of vanadium

  • Magnetic Separation Test Results on the Papineau vanadium ...

    potentially extractable from the same open pit, is a vanadium-titanium-iron deposit. With the recent major price increase in vanadium, worldwide shortfalls in current metal stockpiles, increasing world demand particularly in China, and technological developments such as the vanadium redox battery, the future for vanadium looks promising ...

  • MODELLING OF KINETICS OF ISOTHERMAL ALLOMORPHIC

    kinetics of allotriomorphic ferrite in medium carbon vanadium-titanium microalloyed steel. The theoretical models presented in this work allow calculation of the kinetics of isothermal austenite-to-allotriomorphic and idiomorphic ferrite transformation at temperatures at which these phases might not be the only austenite decomposition product ...

  • 发布位置:Isij International 2001作者:C Capdevila F G Caballero C Garcia De Andres从属关系: Spanish National Research Council关于:Ferrite Microalloyed steel Process modeling Diffusion equation Microstructure Tit
  • Vanadium: Titanium alloy markets cautioned over future ...

    Vanadium-based master alloys account for some 80% of the market for titanium alloys and are required for the production of titanium 6-4, which contains 60% aluminium and 40% vanadium, itself a critical material for the production of titanium-based aerospace components.

  • Vanadium: The mineralogy of Vanadium - Mindat.org

    Most widespread minerals containing Vanadium; This list of minerals containing Vanadium is built from the mindat.org locality database. This is based on the number of localities entered for mineral species and is therefore slanted towards minerals interesting to collectors with less coverage of common rock-forming-minerals so it does not give an undistorted distribution of Vanadium mineral ...

  • Leaching Kinetics and Recovery of Vanadium from Egyptian ...

    Leaching Kinetics and Recovery of Vanadium from Egyptian Boiler Ash Under Alkaline Oxidizing Conditions ( 69 ) improves leaching efficiency of Vanadium; increase stirring speed usually increases the rate of leaching due to the suspension of the compound particles and decreases the thickness of the mass transfer bound-

  • Factors Influencing Kinetics of Electrode Processes in ...

    vanadium redox flow battery (VRB) is one of the most promising technologies for this application. In this thesis, I explore the factors contributing to the kinetic performance of operating VRBs by conducting both a kinetics study and a spectroscopy study. In the kinetics study, I determine limiting electrode

  • 作者:Emma Hollmann关于:In situ Kinetics Infrared spectroscopy
  • EP2572006A1 - Method for the extraction and recovery of ...

    A method (10) for the extraction and recovery of vanadium from its ores, the method (10) characterised by the steps of: (i) Acid leaching (12) of an ore containing vanadium and iron to extract vanadium and iron into solution; (ii) Passing the product (78) of the leach step (i) to a solid/liquid separation step (80); (iii) Passing the liquid product (82) of separation step (ii) to a solvent ...


  • INQUIRY

    When we get your inquiries, we will send tailored catalogue, pricelist, delivery, payment terms and other required details to you by email within 24 hours.

    * *

    The materials of processing: *

    • Granite
    • Limestone
    • Basalt
    • Pebble
    • Gravel
    • Gypsum
    • Marble
    • Barite
    • Quartz
    • Dolomite
    • Gold Ore
    • Copper ore
    * *

    E-mail:[email protected]

    Address:HI-TECH Industry Development Zone, Zhengzhou, China