페로바나듐 금속 합금

The abundance of vanadium in the earth's crust is 135×10-4%. There are more than 70 kinds of vanadium minerals, but there are very few single vanadium deposits (only Mina Lagra in Peru is a single deposit that has been mined), and they are all symbiotic with other minerals. The raw materials used for the production of vanadium include vanadium magnetite (containing V0.4%-1.40), uranium-vanadium ore, crude oil ash, vanadium-containing iron phosphorus (containing V3%-6%), waste vanadium catalyst, and production of alumina. Residues, etc. These raw materials contain low vanadium, so hydrometallurgy is required. First, vanadium pentoxide is extracted from these raw materials, and then the vanadium pentoxide is smelted into ferrovanadium and vanadium additives. Vanadium magnetite concentrate is the main raw material for the production of vanadium, and 90% of the world's vanadium production is produced from this raw material.