Metallurgical Product Description
Ferrovanadium is an iron alloy of vanadium and iron. Iron vanadium can be used as an element additive in smelting vanadium steel and alloy cast iron. As an alloying agent, vanadium can improve the strength, toughness, and wear resistance of steel, as well as the ability to withstand impact loads and corrosion resistance, 85% to 90% of iron vanadium is used in steel production. According to the vanadium content, iron vanadium can be divided into high vanadium ferroalloy and low iron vanadium. Usually, the vanadium content of vanadium ores is too low, difficult to produce iron vanadium directly from vanadium ores. Generally, vanadium pentoxide is produced first, and then iron vanadium is produced from vanadium pentoxide.
manufacture of Product
Silicon thermal method
Flake vanadium pentoxide uses 75% ferrosilicon and a small amount of aluminum as a reducing agent, and is refined in an alkaline electric arc furnace through two stages of reduction and refining to obtain qualified products. During the reduction period, all the reducing agents in one furnace and 60-70% of the total flaky vanadium pentoxide are put into the electric furnace, and silicon thermal reduction is carried out under high calcium oxide slag. When the V2O5 in the slag is less than 0.35%, the slag is released (called lean slag, which can be discarded or used as building materials) and enters the refining period. At this time, flake vanadium pentoxide and lime are added to remove excess silicon, aluminum, etc. in the alloy liquid. The slag and ferrous alloy can be excavated when the alloy composition meets the requirements. The slag released in the later stage of refining is called rich slag (containing V2O5 up to 8-12%) and will be returned to the furnace for reuse when charging begins in the next furnace. The alloy liquid is generally cast into cylindrical ingots, and the finished product is obtained after cooling, de-molding, crushing, and slag removal. This method is generally used for smelting ferrovanadium containing 40 to 60% vanadium. The vanadium recovery rate can reach 98%.
Product Parameters
|
Grade |
V |
Al |
P |
Si |
C |
|
FeV40-A |
38-45 |
1.5 |
0.09 |
2 |
0.6 |
|
FeV40-B |
38-45 |
2 |
0.15 |
3 |
0.8 |
|
FeV50-A |
48-55 |
1.5 |
0.07 |
2 |
0.4 |
|
FeV50-B |
45-55 |
2 |
0.1 |
2.5 |
0.6 |
|
FeV60-A |
58.0~65.0 |
1.5 |
0.06 |
2 |
0.4 |
|
FeV60-B |
58.0~65.0 |
2 |
0.1 |
2.5 |
0.6 |
|
FeV60-A |
58.0~65.0 |
0.4 |
2 |
0.06 |
0.04 |
|
FeV60-B |
58.0~65.0 |
0.6 |
2.5 |
0.1 |
0.05 |
|
FeV80-A |
78-82 |
1.5 |
0.05 |
1.5 |
0.15 |
|
FeV80-B |
78-82 |
2 |
0.06 |
1.5 |
0.2 |
Size: 03 – 20mm, 10 – 50mm
Color: Silver Gray/Gray
Melting point: 1800°C
Packing: Steel Drums (25Kgs, 50Kgs, 100Kgs & 250Kgs) or 1 Ton bags.
application of the Product
Metal vanadium is mainly used in non-ferrous alloys to produce vanadium-titanium alloys, such as Ti-6Al-4V, Ti-6Al-6V-2Sn, and Ti-8Al-1V-Mo. Ti-6Al-4V alloy is an excellent high-temperature structural material used to manufacture aircraft and rockets. It is highly valued in the United States, and its output accounts for more than half of titanium-based vanadium alloys. Metal vanadium can also be used in magnetic materials, cast iron, cemented carbide, superconducting, and nuclear reactor materials.
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