Determination of the nucleation and growth rates in MgCO3 system from crystal size distribution

S. Devasahayam*, P. R. Khangaonkar

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Crystal size distribution analysis of magnesium carbonate for a batch operation is presented. Log normal distribution is assumed in calculating the mean size of the crystals. Change of slope in the particle size distribution v. particle size plot suggests a crystal growth rate independent of crystal size. The order of nucleation process (m) being >4, as correlated by power law kinetics is indicative of nucleation by primary mechanisms. High supersaturation levels are attributed to theses phenomena. Relatively high saturation rates lead to a widening of the metastable region.

Original languageEnglish
Pages (from-to)171-176
Number of pages6
JournalTransactions of the Institutions of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy
Volume116
Issue number3
DOIs
Publication statusPublished - Sep 2007
Externally publishedYes

Keywords

  • Crystal growth rate
  • Crystal size distribution analysisSuper saturation
  • MgCO

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