Crystallization of nano-calcium carbonate: the influence of process parameters

Steliana Aldea, Mathias Snåre, Kari Eränen, Henrik Grénman, Anne-Riikka Rautio, Krisztian Kordás, Jyri-Pekka Mikkola, Tapio Salmi, Dmitry Murzin

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Precipitated calcium carbonate was synthesized by carbonation of calcium hydroxide in the presence and absence of ultrasound (conventional stirring) at atmospheric as well as at elevated pressures and different initial concentrations of Ca(OH)2. Spherical morphology of the formed calcite was favored at high Ca(OH)2 concentrations and low CO2 pressures. The presence of ultrasound did not show any influence on the reaction rate in case of efficient mixing. A small increase of the reaction rate was observed at lower CO2 pressures. Elevated pressures in combination with ultrasound did not lead to notable changes of reaction rate or particle morphology.
Original languageUndefined/Unknown
Pages (from-to)1609–1616
JournalChemie Ingenieur Technik
Volume88
Issue number11
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • engineering education

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