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TU Delft – Eutectic Freeze Crystallization

Last updated 899 days ago by Albert Verver


NL GUTS Group of Users of Technology for Separation in the Netherlands


20110927 TU DELFT – Geert Jan Witkamp – “Trends in Crystallization and Eutectic Freeze Crystallization”

Witkamp reviews the trends in crystallization: from Super Critical CO2, from ionic liquids, for recovering calcium-carbonate for paper, the use of ultrasound, the application of scaling sensors, new ways of scaling limitation and removal, the use of crystallization for zero discharge water treatment. An illustration of the latter is Eutectic Freeze Crystallization EFC for removing scaling compounds and salts from water, RO concentrates, ion exchange regenerates enabling full water recovery and winning of valuable trace elements.

Current status of EFC is industrial scale applied at Umicore in process for MgSO4 and NiSO4 recovery. Other applications on pilot scale. www.tudelft.nl


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