Indeed, electrolytic smelting is around and is currently used to produce high purity iron. There are a few engineering difficulties arising from the high tempe

Indeed, electrolytic smelting is around and is currently used to produce high purity iron. There are a few engineering difficulties arising from the high temperatures required and the chemicals around. And note that aluminum smelting also releases quite a lot of carbon dioxide for various reasons, one of them being consumption of the graphite electrodes. 1. https://en.wikipedia.org/wiki/Electrolytic_iron https://en.wikipedia.org/wiki/Electrolytic_iron 2. https://www.newscientist.com/article/dn9878-electrolysis-may-one-day-provide-green-iron/ https://www.newscientist.com/article/dn9878-electrolysis-may... (2006) 3. https://link.springer.com/article/10.1007/s10800-017-1143-5 https://link.springer.com/article/10.1007/s10800-017-1143-5 (2018)