Preparation and properties of high-purity vanadium and V-15Cr-5Ti

Wang, C. T.; Baroch, E. F.; Worcester, Samuel; Shen, Yu-Zen

doi:10.1007/bf02642017

Cited by 22 publications

(5 citation statements)

References 5 publications

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“…Ductile vanadium (1-7) and vanadium with purity higher than 99.9% (8)(9)(10)(11)(12) have been prepared from various materials containing vanadium. A starting material for the production of vanadium is vanadium carbide, which is produced commercially for use as a replacement for ferrovanadium in the steel industry.…”

mentioning

confidence: 99%

Electrolytic Preparation of Vanadium from Vanadium Carbide

Lei¹,

Campbell²,

Sullivan³

1973

J. Electrochem. Soc.

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The preparation of vanadium by molten‐salt electrolysis of a commercial vanadium carbide (VC) containing 84% vanadium was investigated. An electrolytic process was developed for the extraction of vanadium from VCnormalin an LiCl‐normalNaCl‐VCl2 electrolyte contained in a helium‐atmosphere cell at 650°C. The effects of electrolyte composition, vanadium depletion of the VC, and cathode current densities on the process, as well as the effects on the quality of vanadium products, were determined. Vanadium of 99% purity was prepared with an 85% recovery of vanadium and a cathode current efficiency of 70%. The vanadium contained approximately 0.60% oxygen and had a 100 Rockwell B hardness. High‐purity, ductile vanadium was prepared from the VC by electrorefining the extraction products in a separate cell or by combining the extraction and electrorefining processes in a single cell. In the combined process, the vanadium was first extracted from the VC and deposited on a cylindrical electrode; this vanadium was then electrorefined and deposited on a central cathode rod. Both methods yielded vanadium of 99.9% purity with 35–40 Rockwell B hardness. With limited tests in the combined process, 58% recovery of ductile vanadium from the VC was achieved.

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mentioning

confidence: 99%

Electrolytic Preparation of Vanadium from Vanadium Carbide

Lei¹,

Campbell²,

Sullivan³

1973

J. Electrochem. Soc.

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“…Metal vanadium has been widely used in industries because of its excellent performance as an additive to high‐strength or heat‐resistant steel or hydrogen storage materials. Currently, metal vanadium is produced under sever condition such as at 2273 K by the reduction of V 2 O 5 by an aluminothermal reaction (so‐called thermite reaction) . Moreover, the removal of the residual aluminum in the product vanadium is essentially required.…”

Section: Figurementioning

confidence: 99%

A Facile Formation of Vanadium(0) by the Reduction of Vanadium Pentoxide Pelletized with Magnesium Oxide Enabled by Microwave Irradiation

et al. 2020

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The reduction of V2O5 to vanadium metal(0), that requires severe conditions in conventional reduction methods, was enabled to be proceeded in a short time of 1 h at 1273 K by the reaction with magnesium vapor with the isolation yield of V(0) in 55.6% by using microwave irradiation of 820 W. A pressurized pelletization of powdery V2O5 well‐mixed with MgO powder at a specific mixing ratio followed by calcination in ambient air at 1173 K was crucial for the reaction since a complex oxide of MgV2O4, presumably as a precursor, was formed in calcination of the V2O5/MgO pellet to be reduced to V(0) by the reaction with magnesium. Calcination of V2O5/MgO pellets with different mixing ratios or different temperatures resulted in the formation of different kinds of complex oxide of vanadium and magnesium such as α‐Mg2V2O7, Mg3(VO4)2, triclinic Mg2V2O7, and MgV2O6. While the yield of V(0) was dependent on the kind of the complex oxide, formation of MgV2O4 was essential as the precursor to the formation of V(0).

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“…In the process developed by Teledyne Wah Chang Albany [28], a vanadium -aluminum alloy containing 13 -15 % Al is obtained by the aluminothermic reaction of high-purity V 2 O 5 with aluminum powder in a closed vessel. The steel reaction vessel is lined with aluminum oxide at the bottom and in the reaction zone.…”

Section: Production Of Vanadium Metal and Its Alloysmentioning

confidence: 99%

Vanadium and Vanadium Compounds

Bauer

Güther

Hess

et al. 2000

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. History 2. Properties 3. Occurrence 4. Processing of the Raw Materials to Vanadium Compounds 4.1. Iron Ores and Titanomagnetites as Raw Materials 4.2. Processing of Other Raw Materials 5. Production of Vanadium, Ferrovanadium, and Other Alloys 5.1. Reduction Behavior of Vanadium Oxides 5.2. Production of Vanadium Metal and its Alloys 5.3. Ferrovanadium 5.3.1. Production from Vanadium Oxides 5.3.2. Direct Production from Slags and Residues 5.4. Production of Other Vanadium Master Alloys 6. Uses 7. Vanadium Compounds 8. Analysis 9. Economic Aspects 10. Environmental Protection and Toxicology

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Preparation and properties of high-purity vanadium and V-15Cr-5Ti

Cited by 22 publications

References 5 publications

Electrolytic Preparation of Vanadium from Vanadium Carbide

Electrolytic Preparation of Vanadium from Vanadium Carbide

A Facile Formation of Vanadium(0) by the Reduction of Vanadium Pentoxide Pelletized with Magnesium Oxide Enabled by Microwave Irradiation

Vanadium and Vanadium Compounds

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