B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 39/06 (2006.01) B01D 24/10 (2006.01) B01D 24/46 (2006.01) B01D 37/02 (2006.01) B01D 39/04 (2006.01) C12H 1/02 (2006.01)
Patent
CA 2043495
A method of filtering beverages and other liquids. To avoid the considerable ecoproblems encountered with the filter aids of known procedures, which must be thrown away, the filtering active structure of the inventive filter aids is maintained so that they may be reused as often as required. A mixture of filter aids of varying morphological and physical components is used, and constitutes a minimum of two components, namely one component of specifically heavy, chemically stable metal and/or metal oxide and/or carbon particles of fibrous and/or granular structure, and a further component, for building up the filter cake and increasing its volume, of synthetic and/or cellulose fibers having a fiber length of 1 to 5000 µm and a fiber thickness of 0.5 to 100 µm. To increase the filtering efficiency of the filter cake of the aforementioned components, a further component may be added that comprises fibrillated or fanned out synthetic and/or cellulose fibers, preferably having a fiber length of 500 to 5000 um and a fiber thickness of 0.5 to 20 µm. The components are intensively mixed to form a homogeneous mixture, and are dosed to the liquid that is to be filtered.
Baur Wolfgang
Gottkehaskamp Ludger
Oechsle Dietmar
Fetherstonhaugh & Co.
Pall Corporation
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