Modern Blast Furnace Slag Granulation and Its Utilization

Around 70% of the world's yearly steel production is produced by the BF-BOF route. Hereby around 0.25 tons of BF slag is produced per ton of hot metal. Since the late 1860s, the latent hydraulic properties of this slag have been analyzed. Since then, the role of high-quality granulated BF slag, especially in the cement industry as clinker substitute, has increased. Using state-of-the-art technology enables the subsequent transformation from the liquid slag to a high economical byproduct and is moreover reducing the ecological footprint of the integrated steelmakers as well as the cement producers.

Authors:

Roger Bosman | Paul Wurth SA
 

Rob D'Arrigo | SMS group Inc.
 

Joerg Brinckmann | SMS group Inc
 

Thiago Mazzeu | SMS group Inc
 

Session Chairs:

Brian Black | SMS group Inc.
 

Jason Entwistle | U. S. Steel - Gary Works