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Ion exchange with irreversible reaction in deep fluidized beds
Author(s) -
Koloini T.,
ŽUmer M.
Publication year - 1979
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450570209
Subject(s) - mixing (physics) , hydrochloric acid , fluidized bed , ion exchange , aqueous solution , ion , fluidization , chemistry , flow (mathematics) , ion exchange resin , axial symmetry , thermodynamics , materials science , mechanics , inorganic chemistry , organic chemistry , physics , engineering , structural engineering , quantum mechanics
Abstract The exchange of CI − ion between dilute aqueous solutions of hydrochloric acid and the ion exchange resin IRA‐425 in fluidized beds was studied in a laboratory size column. Analysis of the experimental data showed that axial mixing of particles in deep beds was incomplete and also that packed and fluidized bed break‐through curves were similar. A model is proposed describing the bed as a series of mixing stages for solids with axially dispersed flow of liquid. Data are presented in support of such a concept. An empirical method is proposed for prediction of the break‐through curves at various operating conditions, requiring only a very limited amount of experimentation.