Dissolution of steelmaking slags in acetic acid for precipitated calcium carbonate production

By Sebastian Teir, S. Eloneva, C. Fogelholm, Ron Zevenhoven. 2007

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Fixation of CO2 by carbonating calcium derived from blast furnace slag (2008, methodology): “Dissolution conditions were chosen on the basis of our previous work [14] to yield a solution containing a high concentration of calcium and low concentrations of other elements.”
Effective CO2-specific sequestration capacity of steel slags and variability in their leaching behaviour in view of industrial mineral carbonation (2010, background): “The mineral carbonation of steel slag with anthropogenic CO2 (Huijgen et al., 2005; Teir et al., 2007; Bonenfant et al., 2008; Lekakh et al., 2008) is an increasingly promising concept that may play an important role as an alkaline waste management strategy and a CO2 mitigation option in the context”
Indirect CO2 mineral sequestration by steelmaking slag with NH4Cl as leaching solution (2011, background): “The indirect aqueous carbonation of SL using various acidic recyclable leaching media, such as acetic acid, acetic acid together with organic solvent, H2SO4, and NH4Cl, has attracted much attentions recently [3,8,9].”
Preliminary assessment of a method utilizing carbon dioxide and steelmaking slags to produce precipitated calcium carbonate (2012, background): “Few studies concerning utilization of steelmaking slags as raw material for carbonation have been made [6–10], but none of these has yet been commercialized.”