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Crystallization of Nano-Calcium Carbonate: The Influence of Process Parameters
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2016 (English)In: Chemie Ingenieur Technik, ISSN 0009-286X, E-ISSN 1522-2640, Vol. 88, no 11, 1609-1616 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2016. Vol. 88, no 11, 1609-1616 p.
Keyword [en]
Carbonation, CO 2 pressure, Precipitated calcium carbonate, Process intensification, Ultrasound
National Category
Chemical Sciences Other Chemical Engineering
Identifiers
URN: urn:nbn:se:umu:diva-124433DOI: 10.1002/cite.201600028ISI: 000388416800005OAI: oai:DiVA.org:umu-124433DiVA: diva2:951947
Available from: 2016-08-11 Created: 2016-08-11 Last updated: 2017-01-15Bibliographically approved

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Mikkola, Jyri-Pekka
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