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Zebo91 t1_j6gxbbq wrote

Reply to comment by ejsandstrom in Green steel startup Boston Metal raises $120M for its fossil-free tech by MrMike

Cleveland cliffs have electric arc furnaces that are significantly better than the old style. I'm not sure if it is the same tech or better

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danielravennest t1_j6j7brn wrote

Electric arc furnaces are for remelting scrap iron to make new steel. About half of US steel production is remelted scrap. The other half has to come from a "reduction" furnace that removes oxygen from iron ore. Historically this was a blast furnace, but Boston Metal has a different process.

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Zebo91 t1_j6jtenz wrote

Thanks for making the distinction.

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