EP 1268044 A1 20030102 - CROSS-FLOW FILTRATION UNIT
Title (en)
CROSS-FLOW FILTRATION UNIT
Title (de)
CROSSFLOW-FILTRATIONSEINHEIT
Title (fr)
UNITE DE FILTRATION A CONTRE-COURANT
Publication
Application
Priority
- DE 10000196 A 20000105
- EP 0013073 W 20001221
Abstract (en)
[origin: WO0149401A1] The invention relates to an improved cross-flow filtration unit for separating substances by the cross-flow filtration of liquid media and recovering the desired substances in the filtrate and/or the concentrate. The unit is characterised by an improved filtration performance and product yield. The inventive cross-flow filtration unit has a filtration material consisting of two microporous membrane layers which lie on top of one another, whereby one membrane layer facing a filtrate collection gap has an average pore size that produces an exclusion limit of approximately 1000 dalton to 1.2 mu m, preventing the concentrate substances from passing through this membrane layer and whereby the membrane layer facing the overflow gap has an average pore size which is greater than that of the first membrane by at least a factor of 1.3. The cross-flow filtration unit can be used in the pharmaceutical, medical, cosmetic, chemical, bio-technical, genetic engineering and environmental protection industries and the laboratory field to filter liquids, emulsions, suspensions, beverages, water and solutions for obtaining valuable materials, separating substances, for depyrogenisation or sterilisation, for separating harmful substances, micro-organisms or cellular components and for the desalination and concentration of protein solutions and other biological media.
IPC 1-7
IPC 8 full level
B01D 61/18 (2006.01); B01D 63/08 (2006.01); B01D 69/12 (2006.01)
CPC (source: EP US)
B01D 63/084 (2013.01 - EP US); B01D 69/1218 (2022.08 - EP US); B01D 2313/44 (2013.01 - EP US); B01D 2315/10 (2013.01 - EP US); Y02A 20/131 (2018.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0149401 A1 20010712; CN 1420801 A 20030528; DE 10000196 A1 20010712; DE 10000196 B4 20131010; EP 1268044 A1 20030102; JP 2003519005 A 20030617; US 2005126980 A1 20050616; US 2007062856 A1 20070322; US 7520988 B2 20090421
DOCDB simple family (application)
EP 0013073 W 20001221; CN 00818211 A 20001221; DE 10000196 A 20000105; EP 00991619 A 20001221; JP 2001549761 A 20001221; US 16880602 A 20020621; US 60288406 A 20061120