Iron Ore Slag Recycling And Metals Recovery

Iron Ore Slag Recycling And Metals Recovery

1 the iron ore based steelmaking fig 1 which represents about 6070 of the world steel production the main raw materials are iron ore coal limestone and recycled steel scrap the main production routes are the ironmaking iron ore based on blast furnace bf followed by steelmaking in the basic oxygen furnace bof and the.

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An overview of recovery of metals from slags sciencedirect therefore the basicity of aod slag is lower than steel slagmoreover aod slag contains much less iron than steel slaghence recovery of iron from aod slag is not importantperhaps the most important characteristic of aod slag is that it contains a high amount of cr 23 and some ni 0.

carbothermal reduction at elevated temperature near 1440 c helped recover a majority of the metal values eg fe cu and mo into the ironrich alloy product which can be a feed material for steel making on the other hand the nonmetallic residue the secondary slag can be used in the glass and ceramic industries.

Furthermore the copper slag also contains valuable metals including 3545 wt fe which suggests it is worth recycling and utilizing as a secondary resource on the other hand china lacks highquality iron ore and imports over one billion tons of iron ore per year in 2017 chinas import dependence ratio rose to 876 therefore.

Iron and steel scrap is a vital raw material for the production of new steel and castiron products the steelmaking and foundry industries in the united states are highly dependent upon the ready availability of scrap from manufacturing operations and from the recovery of products that are no longer used or needed the steel industry has been recycling steel scrap for.

Iron ore slag recycling and metals recovery know more slag recycling with highquality iron ore grades with an iron content of 64 to 67 a blast furnace typically produces about 025 to 030 t of slag per t of pig iron in the case of inferior grade ores below 60 the amount of slag is typically 035 to 050 slagt of pig iron 1 4866 iron ore slag.

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