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Kinetics of the cooling crystallization of sodium sesquisulfate from 4.5 mol/l sulfuric acid
Author(s) -
Nyakiamo Anthony P.,
Pinder Kenneth L.
Publication year - 1996
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.5450740211
Subject(s) - nucleation , supersaturation , crystallization , sulfuric acid , suspension (topology) , crystal growth , chemistry , crystal (programming language) , kinetics , chemical engineering , inorganic chemistry , crystallography , organic chemistry , physics , mathematics , homotopy , computer science , pure mathematics , programming language , engineering , quantum mechanics
Simulating effluent from chlorine dioxide generators, the crystallization kinetics of sodium sesquisulfate from 4.5 mol/L sulfuric acid were studied under cooling conditions. The crystal growth and nucleation rates were determined using the population balance concept and the crystal size distribution from a continuous mixed suspension mixed product removal (MSMPR) crystallizer. Crystallization temperatures studied were 45, 50, 55 and 60°C. The crystal growth and nucleation rate data were correlated to supersaturation and temperature. Nucleation rate was found to be a function of suspension density (secondary nucleation). The activation energies for nucleation and growth are reported.