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Simultaneous preferential crystallization in a coupled batch operation mode. Part II: Experimental study and model refinement

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons86282

Elsner,  M. P.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons86534

Ziomek,  G.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons86477

Seidel-Morgenstern,  A.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;
Otto-von-Guericke-Universität Magdeburg, External Organizations;

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Zitation

Elsner, M. P., Ziomek, G., & Seidel-Morgenstern, A. (2011). Simultaneous preferential crystallization in a coupled batch operation mode. Part II: Experimental study and model refinement. Chemical Engineering Science, 66(6), 1269-1284. doi:10.1016/j.ces.2010.12.035.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-8CDF-4
Zusammenfassung
In the previous part of this series a parametric study was presented to assess theoretically the performance of a novel crystallizer configuration. Complementary, the present work addresses a comprehensive, systematic experimental examination accompanied by an analysis of some relevant process parameters (mass of seeds, CSD of seeds, starting point for the mother liquor exchange, process duration) of two general concepts for preferential crystallization in which the amino acid threonine dissolved in water was used as a model system. In the first step of investigations, the impact of these process parameters was studied for conventional single batch crystallization. The experimental results are discussed and compared with the theoretical ones. Moreover, a configuration consisting of two coupled crystallization vessels was investigated. The specific manipulation of the concentration profiles of each enantiomer in solution as well as of the temperature profiles was found to be suitable to enhance the process performance. This is reflected by higher achievable process productivities and higher product purities. copyright 2010 Elsevier Ltd. All rights reserved [accessed February 2nd 2011]