Eutectic freeze crystallization from the ternary Na2CO3-NaHCO3-H2O system. A novel scraped wall crystallizer for the recovery of soda from an industrial aqueous stream

J. Van Spronsen; M. Rodriguez Pascual; F. E. Genceli; D. O. Trambitas; H. Evers; G. J. Witkamp

doi:10.1016/j.cherd.2009.09.012

Eutectic freeze crystallization from the ternary Na₂CO₃-NaHCO₃-H₂O system. A novel scraped wall crystallizer for the recovery of soda from an industrial aqueous stream

J. Van Spronsen^*, M. Rodriguez Pascual, F. E. Genceli, D. O. Trambitas, H. Evers, G. J. Witkamp

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

Eutectic freeze crystallization was tested in a scaled up version of a scraped cooled wall crystallizer on an industrial aqueous sodium carbonate-sodium bicarbonate waste stream containing traces of molybdenum. A heat transfer rate of 5kWm^-2 was maintained in the crystallizer. Sodium carbonate decahydrate with molybdenum content below 1ppm and pure ice were produced by continuous crystallization at -3.8°C by operating within the metastable zone width of bicarbonate. At -4.0°C bicarbonate started to co-crystallize. The bimodal size distribution of the mixture resulted in poor filtration and purity of the salt product.

Original language	English
Pages (from-to)	1259-1263
Number of pages	5
Journal	Chemical Engineering Research and Design
Volume	88
Issue number	9
DOIs	https://doi.org/10.1016/j.cherd.2009.09.012
Publication status	Published - Sept 2010
Externally published	Yes

Funding

They also thank Senter Novem for their financial support.

Keywords

Crystallization
Downstream processing
Multiphase reactors
Precipitation
Process control
Scale-up

Access to Document

10.1016/j.cherd.2009.09.012

Cite this

Van Spronsen, J., Pascual, M. R., Genceli, F. E., Trambitas, D. O., Evers, H., & Witkamp, G. J. (2010). Eutectic freeze crystallization from the ternary Na₂CO₃-NaHCO₃-H₂O system. A novel scraped wall crystallizer for the recovery of soda from an industrial aqueous stream. Chemical Engineering Research and Design, 88(9), 1259-1263. https://doi.org/10.1016/j.cherd.2009.09.012

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title = "Eutectic freeze crystallization from the ternary Na2CO3-NaHCO3-H2O system. A novel scraped wall crystallizer for the recovery of soda from an industrial aqueous stream",

abstract = "Eutectic freeze crystallization was tested in a scaled up version of a scraped cooled wall crystallizer on an industrial aqueous sodium carbonate-sodium bicarbonate waste stream containing traces of molybdenum. A heat transfer rate of 5kWm-2 was maintained in the crystallizer. Sodium carbonate decahydrate with molybdenum content below 1ppm and pure ice were produced by continuous crystallization at -3.8°C by operating within the metastable zone width of bicarbonate. At -4.0°C bicarbonate started to co-crystallize. The bimodal size distribution of the mixture resulted in poor filtration and purity of the salt product.",

keywords = "Crystallization, Downstream processing, Multiphase reactors, Precipitation, Process control, Scale-up",

author = "\{Van Spronsen\}, J. and Pascual, \{M. Rodriguez\} and Genceli, \{F. E.\} and Trambitas, \{D. O.\} and H. Evers and Witkamp, \{G. J.\}",

year = "2010",

month = sep,

doi = "10.1016/j.cherd.2009.09.012",

language = "English",

volume = "88",

pages = "1259--1263",

journal = "Chemical Engineering Research and Design",

issn = "0263-8762",

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Van Spronsen, J, Pascual, MR, Genceli, FE, Trambitas, DO, Evers, H & Witkamp, GJ 2010, 'Eutectic freeze crystallization from the ternary Na₂CO₃-NaHCO₃-H₂O system. A novel scraped wall crystallizer for the recovery of soda from an industrial aqueous stream', Chemical Engineering Research and Design, vol. 88, no. 9, pp. 1259-1263. https://doi.org/10.1016/j.cherd.2009.09.012

Eutectic freeze crystallization from the ternary Na₂CO₃-NaHCO₃-H₂O system. A novel scraped wall crystallizer for the recovery of soda from an industrial aqueous stream. / Van Spronsen, J.; Pascual, M. Rodriguez; Genceli, F. E. et al.
In: Chemical Engineering Research and Design, Vol. 88, No. 9, 09.2010, p. 1259-1263.

Research output: Contribution to journal › Article › peer-review

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AU - Van Spronsen, J.

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KW - Downstream processing

KW - Multiphase reactors

KW - Precipitation

KW - Process control

KW - Scale-up

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