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Crystallization of Nano‐Calcium Carbonate: The Influence of Process Parameters
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.
Crystallization of Nano‐Calcium Carbonate: The Influence of Process Parameters
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.
Crystallization of Nano‐Calcium Carbonate: The Influence of Process Parameters
Aldea, Steliana (author) / Snåre, Mathias (author) / Eränen, Kari (author) / Grenman, Henrik (author) / Rautio, Anne‐Riikka (author) / Kordás, Krisztian (author) / Mikkola, Jyri‐Pekka (author) / Salmi, Tapio (author) / Murzin, Dmitry Y. (author)
Chemie Ingenieur Technik ; 88 ; 1609-1616
2016-11-01
8 pages
Article (Journal)
Electronic Resource
English
Nanoparticle-Directed Crystallization of Calcium Carbonate
| British Library Online Contents | 2001
| British Library Online Contents | 2008