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Crystallization of potash alum in an MSMPR crystallizer
Author(s) -
Synowiec P.,
Sangl R.,
Mersmann A.
Publication year - 1992
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.270150607
Subject(s) - alum , crystallization , potash , suspension (topology) , sieve (category theory) , chemistry , mineralogy , kinetic energy , particle size , analytical chemistry (journal) , thermodynamics , materials science , chromatography , mathematics , potassium , physics , organic chemistry , combinatorics , quantum mechanics , homotopy , pure mathematics
New data are presented on the crystallization of potash alum (KAl(SO 4 ) 2 ·12H 2 O) from solution, in a continuously operating MSMPR cooling crystallizer, 61 in volume. Population density distributions were determined by sieve analysis. Highly polydispersed product was obtained, with median crystal size, L 50 , in the range between 264 and 607 μm. Suspension density was varied between m T = 7 and 98 kg/m 3 . The results were evaluated according to an attrition model and the obtained kinetic efficiency should be valid for other types of crystallizers.