The steel industry isn’t exactly known for innovation. Very little has changed about purifying iron ore since the process was invented and commercialized in the 1850s. The majority of steelmakers melt solid iron ore at dizzyingly high temperatures inside blast furnaces, where the material react...
Source: [MIT Tech Review](https://www.technologyreview.com/2026/09/08/1142094/laureen-meroueh-makes-cheaper-cleaner-steel/)