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

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Steliana Aldea, Mathias Snåre, Kari Eränen, Henrik Grenman, Anne-Riikka Rautio, Krisztian Kordás, Jyri-Pekka Mikkola, Tapio Salmi, Dmitry Y. Murzin
Publiceringsår: 2016
Tidskrift: Chemie Ingenieur Technik
Volym: 88
Nummer: 11
Artikelns första sida, sidnummer: 1609
Artikelns sista sida, sidnummer: 1616
eISSN: 1522-2640


Abstrakt

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.


Nyckelord

engineering education

Senast uppdaterad 2019-15-10 vid 02:42