The work deals with the layer-based crystallization process from a melt in a stirred vessel. The investigated system was the crystallization of benzyldimethylketale from the binary eutectic system with benzyl. Experimental runs were carried out by using a lab-scale apparatus to measure both the crystal layer growth and the solid purification grade. The experimental results were interpreted by using a crystal layer simulation model based on the integral formulation approach. The effects of the crystal surface undercooling and the impurity segregation in the solid-melt boundary layer were considered. By comparing the experimental results and the values predicted by the model a growth rate expression of the crystal layer was determined. (C) 2001 Elsevier Science Ltd. All rights reserved.
The crystal layer growth from a well-mixed melt / Parisi, Mariapaola; Chianese, Angelo. - In: CHEMICAL ENGINEERING SCIENCE. - ISSN 0009-2509. - 56:14(2001), pp. 4245-4256. [10.1016/s0009-2509(01)00097-5]
The crystal layer growth from a well-mixed melt
PARISI, Mariapaola;CHIANESE, Angelo
2001
Abstract
The work deals with the layer-based crystallization process from a melt in a stirred vessel. The investigated system was the crystallization of benzyldimethylketale from the binary eutectic system with benzyl. Experimental runs were carried out by using a lab-scale apparatus to measure both the crystal layer growth and the solid purification grade. The experimental results were interpreted by using a crystal layer simulation model based on the integral formulation approach. The effects of the crystal surface undercooling and the impurity segregation in the solid-melt boundary layer were considered. By comparing the experimental results and the values predicted by the model a growth rate expression of the crystal layer was determined. (C) 2001 Elsevier Science Ltd. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
