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January 9th, 2008

New freeze drying technology for nanomaterials

Abstract:
Hosokawa Micron stirred freeze drying technology has been successful with materials in the nano size range (down to 50 nm), where agglomerate-free powder from a suspension is required

Wet milled materials on nano-scale, such as aluminium hydroxide, titanium oxide, calcium carbonate and PTFE have been successfully milled whilst trials are currently taking place on food products including watercress, carrots and mushrooms. Conventional freeze drying systems of the tray type are typically slow, with a low heat transfer rate due to stationary material and are manually intensive as trays of material have to be filled and discharged by hand.

Source:
processingtalk.com

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