EP 3389833 A1 20181024 - MONOLITHIC FILTER
Title (en)
MONOLITHIC FILTER
Title (de)
MONOLITHISCHER FILTER
Title (fr)
FILTRE MONOLITHIQUE
Publication
Application
Priority
- FR 1562810 A 20151218
- FR 2016053422 W 20161214
Abstract (en)
[origin: WO2017103473A1] The present invention relates to a monolithic membrane filter for filtering liquids, comprising: a support member composed of a porous inorganic material with a permeability Ks, said support member having a tubular shape with a main axis, an upstream base, a downstream base, a peripheral surface and an inner portion; a plurality of channels parallel with the main axis of the support member, formed in the inner portion of the latter, said channels being separated from each other by internal walls composed of the porous inorganic material; at least one slot formed in the inner portion of the support member and opening onto the peripheral surface such that the filter has an outer surface formed by the peripheral surface of the support member and the surface of said at least one slot; and a membrane, with a permeability Km and a mean thickness tm, covering the inner surface of the channels; characterised in that the mean distance of travel D, defined by the arithmetic mean of the minimum distances between the center of each channel and the outer surface of the filter, satisfies the following relationship: D = a*exp(B)*(Kstm/Km)A, in which α is a coefficient in the range of 0.0008 to 0.0012; A = -21.5*0c +15.4*pi + 0.16*0f + 0.31; and B = 561 *pi + 101 0c + 1.16; where 0c is the mean hydraulic diameter of the channels, 0f is the hydraulic diameter of the filter and pi is the mean thickness of the inner walls.
IPC 8 full level
B01D 63/06 (2006.01); B01D 71/02 (2006.01)
CPC (source: EP US)
B01D 63/061 (2013.01 - US); B01D 63/066 (2013.01 - EP US); B01D 69/02 (2013.01 - US); B01D 71/0215 (2022.08 - EP US); B01D 2315/10 (2013.01 - EP US); B01D 2325/20 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017103473 A1 20170622; EP 3389833 A1 20181024; FR 3045398 A1 20170623; US 2018361321 A1 20181220
DOCDB simple family (application)
FR 2016053422 W 20161214; EP 16825511 A 20161214; FR 1562810 A 20151218; US 201616061940 A 20161214