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Complete Suspension of Microcapsules in Baffled and Unbaffled Stirred Tanks
Author(s) -
Brujes Luis,
Legrand Jack,
Carnelle Gérard
Publication year - 1998
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/(sici)1521-4125(199809)21:9<735::aid-ceat735>3.0.co;2-u
Subject(s) - suspension (topology) , extrapolation , rotational speed , materials science , particle (ecology) , scale up , mechanics , particle size , process (computing) , chromatography , chemistry , engineering , mechanical engineering , mathematics , physics , chemical engineering , computer science , classical mechanics , mathematical analysis , oceanography , homotopy , pure mathematics , geology , operating system
The study of rotational speed for complete suspension have been carried out by varying different parameters: density ratio, stirrer diameter, clearance of stirrer, solid particle diameter, and particle concentration. The equations of correlation available in the literature were tested in order to obtain the one giving the best prediction of experimental values. The proposed correlation enables the determination of the minimal rotational speed for complete suspension of microcapsules in a pilot reactor with a good accuracy. The results will be used for the scale up of a microencapsulation process from laboratory to the pilot stirred vessel, for which it is considered that the extrapolation factor is the minimal rotational speed for complete suspension.