Abstract Crystal growth kinetics of succinic acid in an aqueous solution has been evaluated experimentally at the saturation temperature of 40 °C using a modified fluidized bed growth apparatus and isothermal seeded batch experiments. The measurements covered the supersaturation range between 0.01227 and 0.00713 kg/kg water and the crystal size ranges 560–630 µm, 400–450 µm, and 250–350 µm. A novel cone-shaped design growth cell was used in the fluidized bed apparatus to suspend a uniform size range of crystals under identical hydrodynamic conditions and constant supersaturation. The overall growth rate of succinic acid is dependent on crystal size. The estimated growth rate order (g) was found to be in the range between 1.7–1.8 for all crystal sizes investigated. However, the overall growth rate order (kg ) decreases consistently with decreasing the crystal size. The growth rate versus supersaturation data was analyzed according to the two-step model to estimate the surface integration rate (kr ) and diffusion rate (kd ) coefficients at the different size ranges. The effect of seed loading on the particle size distribution was experimentally investigated. It was realized that growth with the suppression of nucleation takes place at a higher seed loading of 12 g/L.

中文翻译：

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使用改进设计的流化床生长池和等温种子分批结晶器研究琥珀酸的生长速率

摘要 使用改进的流化床生长装置和等温种子批实验，在 40 °C 的饱和温度下，对水溶液中琥珀酸的晶体生长动力学进行了实验评估。测量涵盖了 0.01227 和 0.00713 kg/kg 水之间的过饱和范围和晶体尺寸范围 560–630 µm、400–450 µm 和 250–350 µm。在流化床设备中使用了一种新型锥形设计生长池，以在相同的流体动力学条件和恒定的过饱和度下悬浮均匀尺寸范围的晶体。琥珀酸的总体生长速率取决于晶体尺寸。对于所有研究的晶体尺寸，估计的生长速率阶数 (g) 被发现在 1.7-1.8 之间的范围内。然而，随着晶体尺寸的减小，总体生长速率顺序 (kg ) 始终如一地下降。根据两步模型分析生长速率与过饱和数据以估计不同尺寸范围的表面积分速率 (kr ) 和扩散速率 (kd ) 系数。实验研究了种子负载对粒度分布的影响。认识到抑制成核的生长发生在 12 g/L 的较高种子负载下。