Antisolvent Crystallization as an Alternative to Evaporative Crystallization for the Production of Sodium Chloride

A comparison has been made between the antisolvent crystallization of NaCl with diisopropylamine and the traditional four-effect evaporative crystallization of NaCl. Calculations demonstrated that for a 1 Mton/year salt production plant with an on-site integrated steam power plant the reduction in e...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2000-05, Vol.39 (5), p.1330-1337
Main Authors: Zijlema, Tjakko G, Geertman, Rob M, Witkamp, Geert-Jan, van Rosmalen, Gerda M, de Graauw, Jan
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Cross-disciplinary physics: materials science
rheology
Crystallization, leaching, miscellaneous separations
Exact sciences and technology
Growth from solutions
Materials science
Methods of crystal growth
physics of crystal growth
Physics
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Summary:A comparison has been made between the antisolvent crystallization of NaCl with diisopropylamine and the traditional four-effect evaporative crystallization of NaCl. Calculations demonstrated that for a 1 Mton/year salt production plant with an on-site integrated steam power plant the reduction in energy costs can be 29% if antisolvent crystallization is applied. The estimated fixed capital costs, however, are 8−55% higher for the antisolvent crystallization of NaCl, depending on the process configuration used. As a result of the higher fixed capital costs, the costs in the production of NaCl are lower for the four-effect evaporative crystallization route in all cases.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie990221h