This work presents an experimental investigation on the growth rate of dextrose monohydrate crystals in aqueous solutions, with polysaccharides as impurity in the range 0.6-20.0%. Two different experimental procedures were applied: the monitoring of crystals in a growth cell and the batch seeded crystallization in mass. Firstly, from the visual observation of the crystal growth it was emphasized an unusual initial crystal growth, then this phenomenon was used to interpret the results obtained from the batch seeded experiments. It was shown that the kinetic coefficient is greatly affected by both the surface repair of the crystals and the presence of impurities.
Influence of polysaccharides on the crystal growth of dextrose monohydrate / Parisi, Mariapaola; Terranova, A; Chianese, Angelo. - STAMPA. - (2006), pp. 59-66. (Intervento presentato al convegno 13th international Workshop on Industrial Crystallization tenutosi a Delft, the Netherland nel 13-15 settembre 2006).
Influence of polysaccharides on the crystal growth of dextrose monohydrate
PARISI, Mariapaola;CHIANESE, Angelo
2006
Abstract
This work presents an experimental investigation on the growth rate of dextrose monohydrate crystals in aqueous solutions, with polysaccharides as impurity in the range 0.6-20.0%. Two different experimental procedures were applied: the monitoring of crystals in a growth cell and the batch seeded crystallization in mass. Firstly, from the visual observation of the crystal growth it was emphasized an unusual initial crystal growth, then this phenomenon was used to interpret the results obtained from the batch seeded experiments. It was shown that the kinetic coefficient is greatly affected by both the surface repair of the crystals and the presence of impurities.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
