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

S. Devasahayam; P. R. Khangaonkar

doi:10.1179/174328507X198609

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 journal › Article › peer-review

5 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 language	English
Pages (from-to)	171-176
Number of pages	6
Journal	Transactions of the Institutions of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy
Volume	116
Issue number	3
DOIs	https://doi.org/10.1179/174328507X198609
Publication status	Published - Sept 2007
Externally published	Yes

Keywords

Crystal growth rate
Crystal size distribution analysisSuper saturation
MgCO

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10.1179/174328507X198609

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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.",

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AU - Khangaonkar, P. R.

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AB - 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.

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KW - Crystal size distribution analysisSuper saturation

KW - MgCO

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DO - 10.1179/174328507X198609

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VL - 116

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JO - Transactions of the Institutions of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy

JF - Transactions of the Institutions of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy

IS - 3

ER -

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

Abstract

Keywords

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