Abstract
Classical reactor design theory, incorporating the use of the axial dispersion model and assuming flotation to be a first-order process, is shown to be adequate in predicting the performance of a large flotation column, using a rate constant determined in a small column. The vessel dispersion number is accurately predicted using published relationships. It is preferable to determine the small-column rate constant under conditions in which the froth zone recovery is 100%. A froth zone recovery of 25% in the large column was found to be applicable for the present scale-up calculation procedure. If the bubble sizes in the two columns are not the same, it is proposed that the proper value of the rate constant to be used for the large column is found by using the relationship k α d b −1.5.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The Chemical Engineering Journal and The Biochemical Engineering Journal
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
