BIWIC 2016 - 23rd International Workshop on Industrial Crystallization, Magdeburg, Almanya, 6 - 08 Eylül 2016
The aim of the present study was to
investigate the crystallization kinetics of calcium sulfate dihydrate. The
reactive crystallization of calcium sulfate dihydrate in the absence and
presence of 250 ppm, 1000 ppm and 2500 ppm tartaric acid concentrations was
carried out using mixed-suspension-mixed-product-removal (MSMPR) crystallizer. The
growth kinetic of calcium sulfate dihydrate crystals was analyzed on the basis
of size-independent growth model (McCabe’s DL law) and size-dependent growth models. Since the calcium sulfate
dihydrate crystal growth was found to be dependent on crystal size, kinetic
parameters were calculated by ASL, C-R, MJ2, and MJ3 model on the basis of
population balance theory. Also, relative coefficient, mean square error and
the mean square deviation were determined for each model and the results showed
that MJ3 model closely fitted the experimental data.