• Standard electrode potential (data page) - Wikipedia

    Feb 25, 2002  The data values of standard electrode potentials are given in the table below, in volts relative to the standard hydrogen electrode, and are for the following conditions: . A temperature of 298.15 K (25.00 °C; 77.00 °F). An effective concentration of 1 mol/L for each aqueous species or a species in a mercury amalgam (an alloy of mercury with another metal).

  • Reduction of Vanadium-Titanium-Magnetite by

    carbothermic reduction process of vanadium. titanium. magnetite. The C/O was 1.2, and a certain amount of vanadium. titanium. magnetite and high purity graphite powder were weighed. The CaF 2 was added as 0%, 1%, 3%, 5%, and 7%.The powders were mixed homogeneously in acetone. The

  • Author: Xiangdong Xing, Yueli Du, Jianlu Zheng, Yunfei Chen, Shan Ren, Jiantao Ju
  • Vanadium - Wikipedia

    OverviewHistoryCharacteristicsCompoundsOccurrenceProductionApplicationsBiological role

    Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) somewhat stabilizes the free metal against further oxidation. Andrés Manuel del Río discovered compounds of vanadium in 1801 in Mexico by analyzing a new lead-bearing mineral he called "brown lead". Though he initially presumed its qualities were due to the prese

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  • VANADIUM - chemguide

    Re-oxidation of the vanadium(II) The vanadium(II) oxidation state is easily oxidised back to vanadium(III) - or even higher. Oxidation by hydrogen ions. You will remember that the original reduction we talked about was carried out using zinc and an acid in a flask stoppered with a piece of cotton wool to keep the air out.

  • Vanadium Miners News For The Month Of June 2020 Seeking ...

    Jun 29, 2020  A 68 per cent decrease relative to the prior year due to a decline in the vanadium price, partly offset by a reduction in cost of sales. ... Neometals 100% own the Barrambie Titanium Vanadium

  • A new process for the recovery of iron, vanadium, and ...

    follows: reduction temperature 1350°C, carbon ratio 1.0, coal particle size -74 µm, magnetic intensity 50 mT. The effects of reduction time on metallization and the iron content are A new process for the recovery of iron, vanadium, and titanium The Journal of The Southern African Institute of Mining and Metallurgy VOLUME 114 JUNE 2014 483

  • Isothermal Reduction Kinetics of Chromium-Bearing Vanadium ...

    May 22, 2019  The reduction process of chromium-bearing vanadium–titanium sinter (CVTS) was studied under the simulated conditions of a blast furnace at 1173 K, and the kinetics and mineral phases were analyzed. The reduction kinetics of CVTS at different reduction times was studied using a shrinking unreacted core model. The microstructure, mineral phase and variations of the sinter during reduction

  • Vanadium processing Britannica

    The vanadium regulus thus obtained may be further purified by electron-beam melting. To prepare aluminum-vanadium master alloys for the titanium industry, the aluminothermic method is also used. In this case, an amount of aluminum greater than that required for reduction is added to the charge.

  • Gas-based reduction of vanadium titano-magnetite ...

    Jan 18, 2017  The phase transformation of pre-oxidized vanadium titano-magnetite pellets during the reduction process under an H2 atmosphere and a CO atmosphere was discussed, and the reduced samples were analyzed by scanning electron microscopy

  • Chemistry of Vanadium - Chemistry LibreTexts

    Vanadium(V) oxide as a Catalyst. During the Contact Process for manufacturing sulfuric acid, sulfur dioxide has to be converted into sulfur trioxide, which is done by passing sulfur dioxide and oxygen over a solid vanadium(V) oxide catalyst. \[ SO_2 + \dfrac{1}{2}O_2 \ce{->[V_2O_5]} SO_3\] This is a good example of the ability of transition metals and their compounds to act as catalysts ...

  • Carbothermic Reduction of Vanadium Titanomagnetite by ...

    The effects and reduction mechanisms of carbothermic reduction of vanadium–titanium–magnetite were studied by adding various mass fractions of CaF2 ranging from 0%, 1%, 3%, 5% to 7%.

  • Vanadium - Wikipedia

    Vanadium is a chemical element with the symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal.The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) somewhat stabilizes the free metal against further oxidation.

  • Vanadium Miners News For The Month Of February 2020 ...

    Feb 29, 2020  Testwork and studies are underway to produce High Purity Alumina (99.99% Al2O34N HPA), and Vanadium pentoxide (>98% V2O5), Titanium dioxide (>99% TiO2) and Iron oxide (>65% Fe2O3) as co-products ...

  • Effect of B2O3 Content on the Sintering Basic ...

    Resulting in a lower yield and drum strength of vanadium-titanium sinter, the production volume of small size sinter also increases. Low-temperature reduction pulverization index (RDI −3.15) of the vanadium-titanium sinter is significantly higher than the sinter without vanadium-titanium magnetite [3, 4].

  • 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 ...

  • Properties and Applications of Titanium - 6% Aluminum - 4% ...

    TiAlV alloy is an alpha+beta alloy, containing 6% aluminum and 4% vanadium. This titanium alloy has good tensile properties at room temperature, annealed material having a typical tensile strength of 1000-1100 MPa (145-160 ksi), and a useful creep resistance up to 300°C of about 570 MPa (83 ksi) for 0-1% total plastic strain in 100 hours.

  • (PDF) Reduction and Smelting of Vanadium Titanomagnetite ...

    The suppression of titanium oxide reduction enables both successful separation of iron from slag and smooth production operations for the smelting of vanadium titanomagnetite.

  • Preparation of vanadium powder and vanadium–titanium ...

    Preparation of vanadium powder and vanadium–titanium alloys by the electroreduction of V 2 O 3 and TiO 2 powders. Tian Wu (a1), Xiaoling Ma (a2) and Xianbo Jin (a3) ... A new concept of sponge titanium production by calciothermic reduction of titanium dioxide in molten calcium chloride.

  • Making Vanadium Vanitec

    The 40% grade is produced from slag and other vanadium products by the silicon reduction process. Vanadium additions to titanium alloys are made with aluminium-vanadium master alloys which are also produced by aluminothermic reduction of high purity vanadium oxides.

  • Vanadium chemical element Britannica

    Vanadium metal, sheet, strip, foil, bar, wire, and tubing have found use in high-temperature service, in the chemical industry, and in bonding other metals.Because the major commercial use of vanadium is in steel and cast iron, to which it lends ductility and shock resistance, most of the vanadium produced is used with iron as ferrovanadium (about 85 percent vanadium) in making vanadium steels.

  • (PDF) Reduction and Smelting of Vanadium Titanomagnetite ...

    The suppression of titanium oxide reduction enables both successful separation of iron from slag and smooth production operations for the smelting of vanadium titanomagnetite.

  • Preparation of vanadium powder and vanadium–titanium ...

    Preparation of vanadium powder and vanadium–titanium alloys by the electroreduction of V 2 O 3 and TiO 2 powders. Tian Wu (a1), Xiaoling Ma (a2) and Xianbo Jin (a3) ... A new concept of sponge titanium production by calciothermic reduction of titanium dioxide in molten calcium chloride.

  • Making Vanadium Vanitec

    The 40% grade is produced from slag and other vanadium products by the silicon reduction process. Vanadium additions to titanium alloys are made with aluminium-vanadium master alloys which are also produced by aluminothermic reduction of high purity vanadium oxides.

  • Vanadium chemical element Britannica

    Vanadium metal, sheet, strip, foil, bar, wire, and tubing have found use in high-temperature service, in the chemical industry, and in bonding other metals.Because the major commercial use of vanadium is in steel and cast iron, to which it lends ductility and shock resistance, most of the vanadium produced is used with iron as ferrovanadium (about 85 percent vanadium) in making vanadium steels.

  • Reduction kinetics of oxidized vanadium titano-magnetite ...

    Vanadium titano-magnetite (VTM) ore is a kind of multi-elements-coexistent mineral which mainly contains V, Ti and Fe . According to statistics, there are about ten billion tons VTM resource storage in China. The reserves vanadium and titanium account for 11.6% and 35.17% of that all over the world, respectively , . VTM ore has become one of ...

  • Minerals Free Full-Text Characterization and Pre ...

    Vanadium and titanium are important industrial raw materials, which due to their properties have found applications in various fields [1,2].Vanadium-titanium magnetite ore is a typical poly-metallic mineral which mainly contains V, Ti and Fe, with a high comprehensive utilization value [3,4].China is rich in vanadium-titanium magnetite ore, which is mainly distributed in the Pan-xi and Cheng ...

  • Reduction behavior of vanadium-titanium magnetite carbon ...

    The reduction behavior of a new type of blast furnace burden named vanadium‑titanium magnetite carbon composite hot briquette (hereinafter abbreviated as VTM-CCB), including fraction of reaction (f), reduction shrinking, crushing strength after reduction, phase transformation of valuable elements, and softening-melting-dripping behavior, were investigated with simulating blast furnace ...

  • RECOVERY OF IRON, VANADIUM, MANGANESE, CHROMIUM,

    RECOVERY OF IRON, VANADIUM, MANGANESE, CHROMIUM, AND TITANIUM FROM VANADIUM SLAG BY MOLTEN SALT ELECTROLYSIS Shiyuan LIU1,2, Lijun WANG*1,2, ... reduction of V 2 O 5.1,2,3 The objective of salt roasting is to convert insoluble vanadium (III) from vanadium slag to

  • Experimental Study on Oxygen-Enriched Sintering of ...

    Moreover, the low-temperature reduction pulverability rate of the vanadium-titanium sintered ore RDI −3.15 is significantly higher than that of ordinary sintered ore [3–7]. Oxygen-enriched sintering refers to the addition of a certain amount of oxygen in the intake

  • Vanadium Chemistry: V(V) reduction to V(IV), V(III) and V ...

    Sep 05, 2016  The color green appears in between but seems to be a mixture of the yellow Vanadium(V) and the blue Vanadium(IV). There is an additional note on the last page in the book which says:

  • 作者: Colorful Chemistry
  • Which is the best catalyst? Yahoo Answers

    Feb 11, 2010  Based on their available oxidation states, rank the following metals on their ability to catalyze this and other oxidation-reduction reactions. Rank from best to worst catalyst. To rank items as equivalent, just state equivalent. Manganese Vanadium Titanium

  • 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 ...

  • The isothermal reduction kinetics of chromium-bearing ...

    The reduction of chromium-bearing vanadium–titanium magnetite sinter (CVTMS) by CO was investigated at 1123–1223 K. The reduction degree increased with increasing temperature.

  • World-Class Vanadium Deposits - VanadiumCorp Resource Inc.

    Nov 30, 2016  Bushveld Minerals (LON:BMN): The Bushveld Vanadium project is located in South Africa and contains approximately 20 billion tonnes of vanadium as well as titanium, representing 26 percent of the world’s vanadium reserves. According to the company’s website, the region is a growing vanadium-producing region, with four operations comprising ...

  • Vanadium Chemistry: V(V) reduction to V(IV), V(III) and V ...

    Sep 05, 2016  The color green appears in between but seems to be a mixture of the yellow Vanadium(V) and the blue Vanadium(IV). There is an additional note on the last page in the book which says:

  • 作者: Colorful Chemistry
  • Which is the best catalyst? Yahoo Answers

    Feb 11, 2010  Based on their available oxidation states, rank the following metals on their ability to catalyze this and other oxidation-reduction reactions. Rank from best to worst catalyst. To rank items as equivalent, just state equivalent. Manganese Vanadium Titanium

  • 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 ...

  • The isothermal reduction kinetics of chromium-bearing ...

    The reduction of chromium-bearing vanadium–titanium magnetite sinter (CVTMS) by CO was investigated at 1123–1223 K. The reduction degree increased with increasing temperature.

  • World-Class Vanadium Deposits - VanadiumCorp Resource Inc.

    Nov 30, 2016  Bushveld Minerals (LON:BMN): The Bushveld Vanadium project is located in South Africa and contains approximately 20 billion tonnes of vanadium as well as titanium, representing 26 percent of the world’s vanadium reserves. According to the company’s website, the region is a growing vanadium-producing region, with four operations comprising ...

  • Feasibility study on preparation of magnesium titanate in ...

    Keywords: Vanadium titanomagnetite, carbonthermic reduction, magnesium titanate, formation mechanism 1. Introduction Vanadium titanomagnetite is an abundant resource of vanadium, titanium, and iron. This mineral is a massive, special iron-ore deposit with total reserves of more than 40 billion tons in the world (Chen and Chu, 2014).

  • Compare Titanium vs Vanadium Compare properties

    Titanium is also known as corrosion resistant metal. Vanadium is a highly reactive metal, hence it is not found free in nature. Vanadium can be found in almost 65 different types of minerals.

  • ASTM A572 / A572M - 18 Standard Specification for High ...

    The alloy shall conform to the required contents of columbium, vanadium, titanium, and nitrogen. Permissible values for the product thickness and size is given. Tensile requirements (including yield point, tensile strength, and minimum elongation) and alloy content are also specified. General delivery and test report requirements are also cited.

  • Titanium Aluminum Vanadium Alloy AMERICAN ELEMENTS

    Titanium Aluminum Vanadium, Ti6Al4V, Titanium-64, or Grade 5 Titanium Alloy is one of the most popular titanium alloys in industries such as aerospace, energy, and manufacturing due to its high strength, corrosion resistance, and workability. Composed of 6% aluminum and 4% vanadium, grade 5 titanium is available in numerous forms including ...

  • Reduction Kinetics and Mechanism of Pellets Prepared from ...

    Cheng, G J, Xue, X X, Liu, J X, Liu, Z G, Chu, M S, Jiang, T, Liu, B and Duan, P N, 2015. Reduction kinetics and mechanism of pellets prepared from high-chromium vanadium-titanium magnetite concentrate, in Proceedings Iron Ore 2015, pp 349–358 (The Australasian Institute of Mining and Metallurgy: Melbourne).

  • Titanium - Essential Chemical Industry

    Almost all titanium is used as an alloy with other metals. Among the most important alloying metals are aluminium, vanadium, molybdenum, manganese, iron, tin, chromium and zirconium. One of the most used has a composition of 90% titanium, 6% aluminium, 4% vanadium which is

  • vanadium titanium kinetics

    Efficient Extraction of Vanadium from Vanadium Titanium . 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

  • Vanadium Chemistry Fandom

    Vanadium (IPA: /vəˈneɪdiəm/ ) is a chemical element in the periodic table that has the symbol V and atomic number 23. A rare, soft and ductile element, vanadium is found combined in certain minerals and is used mainly to produce certain alloys. It is one of the 26 elements commonly found in living things. Contents[show] Notable characteristics Vanadium is a soft and ductile, silver-grey ...

  • Measuring TiCl4 and Vanadium in TiO2 Pigment Production ...

    (titanium tetrachloride), vanadium Detector: OMA-300 Process Analyzer Process Stream: TiCl 4 feed gas; recycle gas Typical Measurement Range: 0-10,000 ppm Introduction Known in the paint industry as the “whitest white,” titanium dioxide is a pigment used worldwide. In the chloride production method, titanium ore is converted to TiCl 4