Skip to Main content Skip to Navigation
Journal articles

Determination of crystallization kinetics and size distribution parameters of agglomerated calcium carbonate nanoparticles during the carbonation of a suspension of lime

Abstract : The reaction studied in this work is the synthesis of nanometric size calcium carbonate by carbonation of a suspension of lime, which represents the most common industrial route. The carbonation was proceeded in a pilot batch reactor. This article presents a method for the determination of nucleation and crystal growth rates of calcium carbonate by following two macroscopic parameters: the mass production rate by precipitation and the specific surface area. The results give a constant nucleation rate around 4 × 1015m-3 ·s-1 and a decreasing crystal growth rate between 0.2 and 2 × 10-10 m·s-1. It also provides the main characteristics of the monoparticle size distributions (i.e. the mean particle sizes and in situ coefficient of variation) in the agglomerates, which cannot be obtained by other known methods. For the carbonation carried out in this work, the mean mass particle size at the end of the reaction is about 300 nm and the coefficient of variation of 0.28 indicates a narrow particle size distribution of the monoparticles.
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-01320364
Contributor : Lrgp Ul <>
Submitted on : Monday, May 23, 2016 - 5:18:34 PM
Last modification on : Thursday, January 11, 2018 - 6:25:27 AM

Links full text

Identifiers

Collections

Citation

Mathilde Schnebelen, Myriam Ricaud, Alexandra Jakob, Didier Sy, Edouard Plasari, et al.. Determination of crystallization kinetics and size distribution parameters of agglomerated calcium carbonate nanoparticles during the carbonation of a suspension of lime. Crystal structure theory and applications, 2015, 4, pp.16-27. ⟨10.4236/csta.2015.42003⟩. ⟨hal-01320364⟩

Share

Metrics

Record views

287