Study on the Coupled Breakage Mechanism and Sodium Chloride Crystal Nucleation Kinetics in Fluidized Bed Crystallizers

Abstract Current existing crystal nucleation kinetic formulas mainly focus on the influence of process parameters on the crystallization process, with limited research on the physical properties of the crystals themselves and their breakage phenomena. A crystal contact nucleation kinetic model with a coupled breakage mechanism is proposed. This model links the number of collision points where crystals come into contact during the nucleation process with interfacial energy. Additionally, the F 2 in the classical nucleation kinetic model is redefined as a power function of crystal physical properties and their tendency to break. Experimental results indicate that the tendency of crystals to break significantly affects the nucleation rate. An analysis of the contact nucleation kinetic model with the coupled breakage mechanism was conducted. Compared to the classical nucleation kinetic model, the results show that the new model aligns better with experimental findings.