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1. WO2020068925 - ION EXCHANGE MEMBRANE THROUGH UV INITIATED POLYMERIZATION

Publication Number WO/2020/068925
Publication Date 02.04.2020
International Application No. PCT/US2019/052880
International Filing Date 25.09.2019
IPC
C08J 5/22 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
20Manufacture of shaped structures of ion-exchange resins
22Films, membranes or diaphragms
B01D 69/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
69Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
10Supported membranes; Membrane supports
B01D 71/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
71Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
02Inorganic material
04Glass
CPC
B01D 61/422
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
42Electrodialysis; Electro-osmosis ; Electro-ultrafiltration
422Electrodialysis
B01J 47/12
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
47Ion-exchange processes in general; Apparatus therefor
12characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes
C08J 2333/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2333Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
02Homopolymers or copolymers of acids; Metal or ammonium salts thereof
C08J 2333/14
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2333Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
04esters
14of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
C08J 5/2231
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
20Manufacture of shaped of ion-exchange resins ; Use of macromolecular compounds as anion B01J41/14 or cation B01J39/20 exchangers
22Films, membranes, or diaphragms
2206based on organic and/or inorganic macromolecular compounds
2218Synthetic macromolecular compounds
2231based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
Applicants
  • EVOQUA WATER TECHNOLOGIES LLC [US]/[US]
Inventors
  • GU, George
  • SAVVAS, Hadjikyriacou
  • DUKES, Simon P.
  • SHAW, Michael J.
Agents
  • WILKINS, Frederick C.
Priority Data
62/736,17625.09.2018US
62/737,37327.09.2018US
62/861,60814.06.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ION EXCHANGE MEMBRANE THROUGH UV INITIATED POLYMERIZATION
(FR) MEMBRANE ÉCHANGEUSE D'IONS OBTENUE PAR POLYMÉRISATION AMORCÉE PAR DES UV
Abstract
(EN)
Methods of producing an ion exchange membrane support are disclosed. The methods include saturating a polymeric microporous substrate with a charged monomer solution comprising at least one functional monomer, a cross-linking agent, and an effective amount of at least one photopolymerization initiator and polymerizing the at least one functional monomer by exposing the saturated polymeric microporous substrate to ultraviolet light under conditions effective to cross-link the at least one functional monomer and produce the ion exchange membrane support. Methods of producing a monovalent selective ion exchange membrane are also disclosed. The methods include functionalizing an exterior surface of the ion exchange membrane support with a charged compound layer, drying the ion exchange membrane support and soaking the ion exchange membrane support in a solution comprising an acid or a base for an amount of time effective to produce the monovalent selective ion exchange membrane.
(FR)
L'invention concerne des procédés de fabrication d'un support de membrane échangeuse d'ions. Les procédés incluent la saturation d'un substrat micro-poreux polymère avec une solution de monomères chargés comprenant au moins un monomère fonctionnel, un agent de réticulation et une quantité efficace d'au moins un amorceur de photo-polymérisation, et la polymérisation du ou des monomères fonctionnels par exposition du substrat micro-poreux polymère saturé à une lumière ultraviolette dans des conditions assurant la réticulation du ou des monomères fonctionnels et la fabrication du support de membrane échangeuse d'ions. L'invention concerne également des procédés de fabrication d'une membrane échangeuse d'ions sélectifs monovalents. Les procédés incluent la réorganisation fonctionnelle d'une surface extérieure du support de membrane échangeuse d'ions avec une couche d'un composé chargé, le séchage du support de membrane échangeuse d'ions et l'immersion du support de membrane échangeuse d'ions dans une solution comprenant un acide ou une base, pendant une durée permettant d'obtenir la membrane échangeuse d'ions sélectifs monovalents.
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