<abstract xmlns="http://www.w3.org/1999/xhtml">Due to increasing emissions of greenhouse gases into the atmosphere number of methods are being proposed to mitigate the risk of climate change. One of them is mineral carbonation. Blast furnace and steel making slags are co-products of metallurgical processes composed of minerals which represent appropriate source of cations required for mineral carbonation. Experimental studies were performed to determine the potential use of slags in this process. Obtained results indicate that steel making slag can be a useful material in CO2 capture procedures. Slag components dissolved in water are bonded as stable carbonates in the reaction with CO2 from ambient air. In case of blast furnace slag, the reaction is very slow and minerals are resistant to chemical changes. More time is needed for minerals dissolution and release of cations essential for carbonate crystallisation and thus makes blast furnace slags less favourable in comparison with steel making slag.</abstract>

Due to increasing emissions of greenhouse gases into the atmosphere number of methods are being proposed to mitigate the risk of climate change. One of them is mineral carbonation. Blast furnace and steel making slags are co-products of metallurgical processes composed of minerals which represent appropriate source of cations required for mineral carbonation. Experimental studies were performed to determine the potential use of slags in this process. Obtained results indicate that steel making slag can be a useful material in CO2 capture procedures. Slag components dissolved in water are bonded as stable carbonates in the reaction with CO2 from ambient air. In case of blast furnace slag, the reaction is very slow and minerals are resistant to chemical changes. More time is needed for minerals dissolution and release of cations essential for carbonate crystallisation and thus makes blast furnace slags less favourable in comparison with steel making slag.

Mineral carbonation of metallurgical slags

Institute of Geological Sciences, Jagiellonian University, Oleandry 2a, 30-063 Krakow, Poland

Mineralogia

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Mineral carbonation of metallurgical slags"}

Due to increasing emissions of greenhouse gases into the atmosphere number of methods are being proposed to mitigate the risk of climate change. One of them is...

Mineral carbonation of metallurgical slags

Publié en ligne: 01 juil. 2015

Pages: 27 - 45

Reçu: 16 févr. 2015

Accepté: 24 avr. 2015

DOI: https://doi.org/10.1515/mipo-2015-0002

Mots clés
blast furnace slag, steel making slag, mineral carbonation, calcite

© by Monika Kasina

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mineral carbonation of metallurgical slags

Publié en ligne: 01 juil. 2015

Pages: 27 - 45

Reçu: 16 févr. 2015

Accepté: 24 avr. 2015

DOI: https://doi.org/10.1515/mipo-2015-0002

Mots clésblast furnace slag, steel making slag, mineral carbonation, calcite

© by Monika Kasina

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
blast furnace slag, steel making slag, mineral carbonation, calcite