Freeze-drying apparatus

A drying unit for removing solvent from moist material, and a method for drying moist material with the drying unit. The unit comprises at least one drying chamber ( 23 ) having at least one stand plate ( 2 ) for holding vessels ( 3 ), which are filled with moist material, or flat layers of moist ma...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GEHRMANN DIETRICH, FIRUS ARIANE, SENNHENN BERND
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A drying unit for removing solvent from moist material, and a method for drying moist material with the drying unit. The unit comprises at least one drying chamber ( 23 ) having at least one stand plate ( 2 ) for holding vessels ( 3 ), which are filled with moist material, or flat layers of moist material, the drying chamber ( 23 ) being connected to a condenser ( 22 ) via a vapor passage ( 15 ), in which sublimed solvent can be separated out, the stand plates ( 2 ) being connected to a temperature-controlled heating/cooling circuit, the chamber ( 23 ) having heating/cooling plates ( 4 ) or ( 4 ') which are connected to a second heat-transfer circuit, wherein the heating/cooling plates ( 4 ) or ( 4 ') are substantially thermally isolated from the chamber wall ( 6 ).