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1. WO2000012194 - COMPOSITE FILTER MEDIUM AND FLUID FILTERS CONTAINING SAME

Publication Number WO/2000/012194
Publication Date 09.03.2000
International Application No. PCT/US1999/017969
International Filing Date 05.08.1999
IPC
B01J 20/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
B01J 20/28 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
28characterised by their form or physical properties
C02F 1/00 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
C02F 1/28 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
28by sorption
C02F 1/42 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
42by ion-exchange
C02F 1/44 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
44by dialysis, osmosis or reverse osmosis
CPC
B01D 39/1623
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
39Filtering material for liquid or gaseous fluids
14Other self-supporting filtering material ; ; Other filtering material
16of organic material, e.g. synthetic fibres
1607the material being fibrous
1623of synthetic origin
B01J 20/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
B01J 20/28004
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
28characterised by their form or physical properties
28002characterised by their physical properties
28004Sorbent size or size distribution, e.g. particle size
B01J 20/28023
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
28characterised by their form or physical properties
28014characterised by their form
28023Fibres or filaments
B01J 20/28028
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
28characterised by their form or physical properties
28014characterised by their form
28028Particles immobilised within fibres or filaments
B01J 20/2803
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
28characterised by their form or physical properties
28014characterised by their form
2803Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
Applicants
  • KOSLOW TECHNOLOGIES CORPORATION [US]/[US]
Inventors
  • KOSLOW, Evan, E.
Agents
  • GREELEY, Paul, D.
Priority Data
09/140,92427.08.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMPOSITE FILTER MEDIUM AND FLUID FILTERS CONTAINING SAME
(FR) MILIEU FILTRANT COMPOSITE ET FILTRES POUR FLUIDES LES CONTENANT
Abstract
(EN)
A composite filter medium for removing particulates in the 3 to 4 micron range as well as dissolved chemical contaminants from a fluid. The filter medium contains an adsorbent layer (11) for removing dissolved contaminants, and a hydrophilic layer (19) for removing particulates. In one embodiment, the adsorbent layer comprises a supporting substrate (12), adsorbent particles (16), and binder particles (18). The filter medium is characterized by a mean flow pore diameter of about 1 to 10 microns, a bubble point of about 3 to 15 microns, and an air permeability of about 0.5 to 7 liters per minute/cm2 with a pressure drop of about 0,1 bar. The composite filter medium may be used in the construction of potable water filters for the removal of potentially hazardous microorganisms.
(FR)
L'invention porte sur un milieu filtrant composite destiné à retirer d'un fluide des matières particulaires de l'ordre de 3 à 4 microns, ainsi que des contaminants chimiques dissous. Le milieu filtrant comporte une couche (11) adsorbante pour retirer les contaminants dissous et une couche (19) hydrophile pour retirer les matières particulaires. Selon une réalisation, la couche adsorbante comprend un substrat (12) de support, des particules (16) adsorbantes et des particules (18) de liant. Le milieu filtrant se caractérise par un diamètre moyen de pore d'écoulement compris entre environ 1 et environ 10 microns, un point de bulle compris entre environ 3 et 15 microns et une perméabilité à l'air d'environ 0,5 à 7 litres par minute/cm2 avec une chute de pression d'environ 0,1 bar. Le milieu filtrant composite peut être utilisé dans la fabrication de filtres pour l'eau potable destinés à éliminer des micro-organismes potentiellement dangereux.
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