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

doi:10.1002/cite.201600028

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 journal › Article › Scientific › peer-review

6 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 language	Undefined/Unknown
Pages (from-to)	1609–1616
Journal	Chemie Ingenieur Technik
Volume	88
Issue number	11
DOIs	https://doi.org/10.1002/cite.201600028
Publication status	Published - 2016
MoE publication type	A1 Journal article-refereed

Keywords

engineering education

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10.1002/cite.201600028

http://onlinelibrary.wiley.com/doi/10.1002/cite.201600028/abstract

Cite this

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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.",

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T1 - Crystallization of nano-calcium carbonate: the influence of process parameters

AU - Aldea, Steliana

AU - Snåre, Mathias

AU - Eränen, Kari

AU - Grénman, Henrik

AU - Rautio, Anne-Riikka

AU - Kordás, Krisztian

AU - Mikkola, Jyri-Pekka

AU - Salmi, Tapio

AU - Murzin, Dmitry

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PY - 2016

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N2 - 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.

AB - 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.

KW - engineering education

U2 - 10.1002/cite.201600028

DO - 10.1002/cite.201600028

M3 - Artikel

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EP - 1616

JO - Chemie Ingenieur Technik

JF - Chemie Ingenieur Technik

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