How to Manage a Crystallization Process Aimed at Obtaining a Desired Combination of Number of Crystals and Their Distribution by Size: Learn Here,Crystal Research and Technology

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How to Manage a Crystallization Process Aimed at Obtaining a Desired Combination of Number of Crystals and Their Distribution by Size: Learn Here
Crystal Research and Technology ( IF 1.5 ) Pub Date : 2021-01-18 , DOI: 10.1002/crat.202000190
Christo N. Nanev ₁

Affiliation

Managing a crystallization process adequately, it is possible to obtain a crystalline product having the desired crystal size distribution. Recommendations for selecting crystallization parameters that are needed to achieve this goal are given basing of a theoretical analysis in which special attention is paid to the growth of crystals from solutions with a preset concentration. Mathematical equations which enable calculation of the theoretical yield for the crystallization process have been elaborated. New formula giving the crystal nuclei number per unit volume as a function of both supersaturation and nucleation time has been devised based on the logistic kinetics of crystal nucleation proceeding under constant supersaturation. The quantitative relation between number density and mean size of crystals growing in batch crystallization is calculated. The calculation shows that the mean size of crystals reached at any time of their growth is inversely proportional to root third of the crystal number density.

中文翻译：

如何管理旨在获得所需数量的晶体及其按尺寸分布的结晶的结晶过程：在此处了解

适当地管理结晶过程，可以获得具有期望的晶体尺寸分布的结晶产物。根据理论分析给出了选择实现该目标所需的结晶参数的建议，其中要特别注意从预设浓度的溶液中晶体的生长。阐述了能够计算结晶过程的理论产率的数学方程式。基于在恒定过饱和下进行的晶体成核的逻辑动力学，设计了新的公式，该公式给出了每单位体积的晶体核数是过饱和度和成核时间的函数。计算了在批结晶中生长的晶体的数量密度和平均尺寸之间的定量关系。计算表明，在晶体生长的任何时间达到的平均尺寸与晶体数密度的根部三分之一成反比。

更新日期：2021-03-11

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