Title:
METHOD FOR DRYING PROTEIN CRYSTALS
Document Type and Number:
WIPO Patent Application WO2000044767
Kind Code:
A3
Abstract:
The invention relates to a method for drying protein crystals contained in an aqueous protein crystal suspension. The method is characterized in that the protein crystal suspension is dried in a centrifugal dryer and that after the protein crystals have been extracted from the protein crystal suspension by filtration said protein crystals are preferably transferred into a drying medium which consists of a mixture of water and a non-aqueous solvent which can be mixed with water to any ratio and has a lower vapour pressure than water. A drying gas humidified with water is advantageously used and the protein crystals are advantageously dried in a fluidized bed.
Inventors:
DEUSSER ROLF
KRAEMER PETER
THUROW HORST
KRAEMER PETER
THUROW HORST
Application Number:
PCT/EP2000/000287
Publication Date:
November 08, 2001
Filing Date:
January 15, 2000
Export Citation:
Assignee:
AVENTIS PHARMA GMBH (DE)
International Classes:
F26B5/08; B01D12/00; C07K1/00; C07K1/14; C07K1/30; C07K14/62; C30B33/00; (IPC1-7): C07K1/00; B04B3/00; C07K14/62; C07K1/14; C07K1/36
Domestic Patent References:
| WO1997044445A1 | 1997-11-27 |
Foreign References:
| EP0454045A2 | 1991-10-30 | |||
| EP0622376A1 | 1994-11-02 |
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