Improvement of desulfurization performances of waste cement particles by acid treatment / Jiawei Wu in Industrial & engineering chemistry research, Vol. 48 N° 7 (Avril 2009)  

Improvement of desulfurization performances of waste cement particles by acid treatment [texte imprimé] / Jiawei Wu, Auteur ; Atsushi Iizuka, Auteur ; Kazukiyo Kumagai, Auteur . - 2009 . - pp. 3303–3307.
Chemical engineering
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 48 N° 7 (Avril 2009) . - pp. 3303–3307

Mots-clés :	Waste cement Desulfurization rate Acid treatments
Résumé :	We studied the effect of acid treatments on the desulfurization rate of waste cement, a byproduct in the recycling of aggregates from waste concrete. Calcium components in the waste cement were partially extracted by treatment with carbonic acid (aqueous solution of high-pressure CO2), hydrochloric acid, or acetic acid. The desulfurization rate was examined using a thermogravimetric method. The desulfurization rates in the initial stage of the reaction (
En ligne :	http://pubs.acs.org/doi/abs/10.1021/ie801312b