4 ms·
O people, look how hard it was in ancient times! Hail the blast furnace!
by baybal2 6y ago
O people, look how hard it was in ancient times!
Hail the blast furnace!
- pfdietz 6y agoAnd all the versions of how you get the excess carbon out of that pig iron. But even today, about 8% of global iron production is by direct reduction. As coal use is phased out, this will rise, and eventually all iron will again be produced without blast furnaces, possibly using "green" hydrogen as the reducing agent.