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FeV60
FeV60FeV60 Smelting method In the alkaline electric arc furnace, the product was refined through two stages of reduction and refining.In the reduction stage, all reducing agents of one furnace and laminated vanadium pentoxide (60~70% of the total) are loaded into the electric furnace.When V2O5 in...

FeV60

Smelting method

In the alkaline electric arc furnace, the product was refined through two stages of reduction and refining.In the reduction stage, all reducing agents of one furnace and laminated vanadium pentoxide (60~70% of the total) are loaded into the electric furnace.When V2O5 in slag is less than 0.35%, the slag (called lean slag, which can be discarded or used as building materials) is released and transferred to the refining stage.At this point, the sheet vanadium pentoxide and lime are added to remove the excess silicon and aluminum in the alloy solution. If the ferroalloy composition reaches the requirement, the ferroalloy can be produced by slag.The slag released in the later stage of refining is called rich slag (including V2O5 up to 8~12%).The alloy liquid is cast into cylindrical ingots, which is finished after cooling, demoulding, crushing and slag cleaning.This method is generally used to smelt ferrovanadium containing 40~60%.The recovery rate of vanadium can reach 98%.It takes about 1600 kilowatts per ton of vanadium iron to be refined.

Aluminothermic process USES aluminum as reducing agent, and the lower ignition process is adopted to smelt in the barrel of basic furnace lining.A small portion of the mixture is first loaded into the reactor, which is then fired.After the reaction began to add the remaining burden.Is typically used for smelting Gao Fantie (containing vanadium 60 ~ 80%), the recovery rate was slightly lower than electrical silicon thermal method, about 90-95%.


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