Simulation and optimization of fractional crystallization processes

Kaj Thomsen, Peter Rasmussen, Rafiqul Gani

Research output: Contribution to journalJournal articleResearchpeer-review


A general method for the calculation of various types of phase diagrams for aqueous electrolyte mixtures is outlined. It is shown how the thermodynamic equilibrium precipitation process can be used to satisfy the operational needs of industrial crystallizer/centrifuge units. Examples of simulation and optimization of fractional crystallization processes are shown. In one of these examples, a process with multiple steady states is analyzed. The thermodynamic model applied for describing the highly non-ideal aqueous electrolyte systems is the Extended UNIQUAC model. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
Original languageEnglish
JournalChemical Engineering Science
Issue number8
Pages (from-to)1551-1564
Publication statusPublished - 1998
Event1997 Annual Meeting, AIChE - Los Angeles
Duration: 1 Jan 1997 → …


Conference1997 Annual Meeting, AIChE
CityLos Angeles
Period01/01/1997 → …


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