首页 | 本学科首页   官方微博 | 高级检索  
     


Estimation of Kinetics for Batch Cooling Crystallization by Focused‐Beam Reflectance Measurements
Authors:Joi Unno  Hiroki Kawase  Reiya Kaneshige  Izumi Hirasawa
Abstract:Numerical simulation of the seeded batch cooling crystallization process of active pharmaceutical ingredients was performed. Crystal size distribution was observed by focused‐beam reflectance measurements and concentration by simultaneous Fourier transform infrared spectroscopy. First, kinetic parameters were estimated. Nucleation rate coefficient and order were estimated from the linear regression equation between cooling rate and metastable zone width. The remaining parameters were estimated from the evaluation function. Then, the numerical simulation was performed by utilizing the method of moments. Finally, observed data were compared with simulated data. The simulated values of mean mass size corresponded reasonably with the observed ones.
Keywords:Active pharmaceutical ingredients  Crystal size distribution  Crystallization  Focused‐beam reflectance measurements  Simulation
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号