Size-dependent nucleation and growth kinetics model for potassium chloride-Application in Qarhan salt lake

作者：Li Xiaosong; Song Xingfu; Liu Gousheng^*; Yu Jianguo

来源：Journal of Crystal Growth, 2009, 311(11): 3167-3173.

DOI：10.1016/j.jcrysgro.2009.03.007

• Nucleation
• Supersaturated solutions
• Industrial crystallization
• Minerals

The nucleation process and crystallization kinetics of KCl were studied in order to investigate the problems in KCl production in Qarhan salt lake. The correlation between particle size and KCl crystal growth rate was studied in a continuous mixed-suspension mixed-product removal (MSMPR) crystallizer. Classical theory of primary nucleation was used to study the homogeneous and heterogeneous nucleation mechanism of I(Cl crystallization. Several size-independent growth models and size-dependent growth models, such as Bransom, C-R, MJ2, ASL, and MJ3, were examined by the population balance theory. Results showed that MJ3 model closely fitted the experimental data, the mean relative deviation was 0.94%, the crystal growth rate G=2068 {1-exp[-1.081 x 10-5(L+961.882)]}.

• 出版日期2009-5-15
• 单位华东理工大学