Chemical Engineering Science

Juan B. Yianatos, Luis G. Bergh, Francisco Díaz, Jorge Rodríguez

Research output: Contribution to conferencePaper

51 Citations (Scopus)


The mixing characteristics of large-size industrial flotation equipment, consisting of banks of mechanical cells and pneumatic columns, has been observed using non-invasive experimental techniques, such as a radioactive tracer to measure the residence time distribution of the liquid and solid. The classical tanks-in-series model showed a good fitting to describe the operation of industrial banks with a different number of flotation cells in series. On the other hand, results for large-size pneumatic flotation columns were also close to well-mixed and can be well represented using a simple model of one large mixer in series with two small mixers plus a dead time, which can be related to the physical phenomena occurring inside a flotation column. The column mixing model is shown to compare well with tracer data from a variety of column designs from different industrial operations. A comparison with the axial dispersion model considering a closed-closed boundary conditions is presented. © 2004 Elsevier Ltd. All rights reserved.
Original languageEnglish
Number of pages10
Publication statusPublished - 1 Apr 2005
Eventconference -
Duration: 1 Apr 2005 → …


Period1/04/05 → …

Fingerprint Dive into the research topics of 'Chemical Engineering Science'. Together they form a unique fingerprint.

  • Cite this

    Yianatos, J. B., Bergh, L. G., Díaz, F., & Rodríguez, J. (2005). Chemical Engineering Science. 2273-2282. Paper presented at conference, .