The metals industry has experienced transformational moments before: the Bessemer process, flash smelting, electric arc furnaces, and modern continuous casting all changed what was possible. Yet, for more than a century, most extraction processes rely on techniques and pathways that would be familiar to metallurgists from generations ago. Processes have become larger and control systems smarter, but the fundamental science behind separating metals from ores has changed less than many realize. Today’s materials challenges are different from those of the 20th century, but why are critical metals still produced using largely the same scientific foundations? EvoMaterials, a technology platform developed by Outokumpu—the global leader in sustainable stainless steel and the producer of ferrochrome with 67% lower carbon footprint than the industry average—is exploring that question by rethinking how metals can be extracted:
“We decided to go beyond the current constraints and look fundamentally at what’s the best way to do this with the benefit of the scientific engineering knowledge and hindsight that we have today,” says Caspar Stinn, technical director for extractive metallurgy at Outokumpu. “We’re looking at how we can reimagine metals production.” A supply chain problem disguised as a materials problem
As economies expand and the world becomes increasingly electrified, data and scientific models point to rising demand for many minerals, driven by technologies ranging from data centers to aerospace, water treatment, energy systems, and defence. According to Antoine Allanore, professor of metallurgy at the Massachusetts Institute of Technology (MIT) this coincides with many Western economies having reduced their domestic processing capacity for the very metals those industries depend on. Metallurgy is now strategically important, shaped not only by cost and availability but also by carbon footprint, geographic origin and supply-chain resilience. That reality is particularly relevant for chromium and other specialty metals used in high-temperature and extreme environments. Chromium-based materials play a critical role in aerospace systems, power generation, corrosion-resistant infrastructure and defense technologies, where materials must perform under demanding conditions. Beyond optimization
For decades, metallurgical innovation largely focused on improving yields, energy efficiency and process control. EvoMaterials is based on the idea that some metallurgical processes may benefit from entirely different chemical pathways. The platform originates from research into sulfidation-based processing technologies, initially pursued to reduce carbon emissions associated with ferrochrome production. Laboratory work revealed broader potential. Lab-scale trials demonstrated that these alternative process chemistries could potentially do more than lower emissions. They could recover valuable metals from lower grade resources and industrial side streams while fundamentally altering how separation processes are performed. The opportunity is to rethink how mineral resources are used and how much value can be extracted from them, bringing in greater resource efficiency and stronger industrial competitiveness. Understanding traditional smelting vs. new proprietary technology
Source : Outokumpu
Development of the technology began in the United States in 2021 for chromite from Outokumpu’s Kemi mine in Finland, the only chrome mine in the European Union and one of the few such operations across the Western world. Since then, Outokumpu has evolved the technology through extensive research and development, combining new process chemistries with proprietary metallurgical expertise, supported in part by a non-exclusive patent license agreement from MIT…
