Ferro Vanadium Of Superior Quality

Ferro vanadium is an important alloy product containing vanadium, which is typically used as a furnace ingredient in steel metallurgy processes.

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Products Description

Ferrovanadium is produced by the reduction of V₂O₅ by silicon from ferrosilicon in the presence of lime in the electric arc furnace (3 MVA). The technology used for the smelting of ferrovanadium in the electric arc furnace utilizes three periods. The purpose of the first period is to restore vanadium from the current (return) fusion products of the third period of the previous heat. The charge, consisting of a recycled furnace slag, lime flux, ferrosilicon, aluminum, vanadium pentoxide, and iron chips, is loaded . After the first period (80 to 100 min), V₂O₅ content in the slag is reduced to 0.25% to 0.35%, and the metal ends with 25% to 30% V, 20% to 24% Si, and 0.3% to 0.5% C. The slag with this low content of vanadium is tapped from the furnace.

In the second period, the basic operations are to restore additional V₂O₅ with silicon and aluminum to increase vanadium content in the metal >35% V and to decrease silicon content in the metal below 10% to 12% Si. Here the charge loaded in the second period is composed of vanadium pentoxide, lime, FeSi75, and aluminum. After melting, the mixture is stirred to accelerate the recovery of vanadium. At this time, the metal contains 6% to 8% Si and the slag contains 8% to 10% V₂O₅, and ferrosilicon and aluminum are loaded at this stage. When the metal composition reaches 35% to 40% V, 9% to 12% Si, and 0.4% to 0.6% C and the V₂O₅ content in the slag drops to <0.35% V₂O₅, the second period (~1 h) ends and the slag is tapped.

In the third period (refining; 40 to 60 min) more lime and vanadium pentoxide are added, and the purpose is to utilize reaming silicon in the metal to reduce more vanadium. The metal is tapped upon reaching <2% Si into a refractory-lined ladle. The slag from the third period (12% to 16% V₂O₅) is tapped into the skimmer and used in the first period of the next heat. Ferrovanadium is poured from the ladle into vertical cast-iron molds.

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Product parameters

code	v	c
fev50	48-55%	0.4-0.6%
fev80	78-82%	0.15-0.2%

The above fill rates can be adjusted upon request.

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We are an international manufacturer specializing in metallurgical material & refractory material products. Our factory covers an area of 30,000 square meters with a full set of modern production equipment. What’s more, our annual production exceeds 150,000 tons. Welcome to our website for further information and contact us with interest.

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