Electric Smelting Furnace Technology for Valorizing Steelmaking Slag

Steelmaking slag is a rarely used byproduct that is rich in iron and lime. Its disposal is costly, wasteful and polluting. As the steel industry shifts away from the blast furnace (BF) to reduce GHG emissions, granulated BF slag, an important raw material for cement-making, becomes unavailable. The electric smelting furnace (ESF) is a mature technology that can be applied to valorize both electric and oxygen steelmaking slags, transforming them into cement-quality materials while recovering the contained iron. This study utilizes first-principles models and industrial benchmarking to examine the ways the ESF can be used to valorize steelmaking slags.

Authors:

Mr. Kamal Joubarani | Hatch
 

Mr. Sa Ge | Hatch
 

Mr. Gustavo Gilberti | Hatch
 

C. Walker | Hatch Ltd.
 

Mr. Kyle Chomyn | Hatch
 

Ms. Isabelle Nolet | Hatch Africa Pty Ltd.
 

Session Chairs:

Euan Evenson | Linde Inc.