Tata Steel and Sweden’s Cemvision have received support from the Swedish Energy Agency to conduct a joint feasibility study on converting Basic Oxygen Furnace (BOF) and Electric Arc Furnace (EAF) slags into high-value feedstock for near-zero-carbon cement while recovering valuable metals.
The project aims to create an industrial symbiosis model in which steelmaking by-products serve as inputs for next-generation cement production, addressing emissions challenges in two sectors that together contribute over 15pct of global CO2 output.
The 10-12 month study will evaluate the technical, economic, and operational viability of slag valorisation ahead of designing a demonstration facility at Tata Steel’s site. If successful, the concept could be scaled to other markets, including India.
For Tata Steel, the collaboration supports efforts to reduce CO2 emissions, enhance circularity, and extract greater value from currently underutilized slag streams. The partnership forms part of the India-Sweden Industry Transition Partnership (ITP) under the LeadIT initiative.
Tata Steel has also received a grant from India’s Department of Science and Technology for this project, which includes partners such as IIT ISM Dhanbad and J K Cement.
