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Recent progress of continuous crystallization

  • Wang, Ting (National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University) ;
  • Lu, Haijiao (National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University) ;
  • Wang, Jingkang (National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University) ;
  • Xiao, Yan (National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University) ;
  • Zhou, Yanan (National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University) ;
  • Bao, Ying (National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University) ;
  • Hao, Hongxun (National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University)
  • Received : 2017.01.24
  • Accepted : 2017.06.05
  • Published : 2017.10.25

Abstract

Continuous crystallization has always been a hot topic in industrial crystallization. Many efforts have been made to improve the continuous crystallization, either by designing novel continuous crystallizers or by proposing improved design and operation of conventional continuous crystallizers. Some new models for continuous crystallization processes have also been proposed and tested in recent years. In this work, the development of continuous crystallization in recent years, including novel crystallizers, control strategies, models and some assistive technologies, is summarized. Promising as it is, continuous crystallization is still not as universal as batch crystallization due to the existence of the drawbacks, such as blockage and encrustation. Therefore, further efforts are needed before wider application of continuous crystallization.