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Modeling and Measurement of the Dissolution Rate of Solid Particles in Aqueous Suspensions – Part II: Experimental Results and Validation
Author(s) -
Allers T.,
Luckas M.,
Schmidt K.G.
Publication year - 2003
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/ceat.200303008
Subject(s) - dissolution , dispersity , particle size , particle size distribution , particle (ecology) , population balance equation , sparging , aqueous solution , materials science , population , chemistry , mineralogy , thermodynamics , physics , geology , oceanography , demography , sociology , polymer chemistry
The dissolution rate of limestone was measured by the pH‐stat method. In the measurements the influence of pH, particle size, kind of limestone, sparging and stirrer speed was first examined for particle fractions with narrow size distributions. Under the assumption that each particle size distribution is adequately represented by its mean particle size, the monodisperse model presented in Part I was adjusted to these data. The adjusted model was combined with the population balance and the three‐phase model described in Part I to a general simulation model for the dissolution of polydisperse solids.