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1. WO2020068930 - MONOVALENT SELECTIVE CATION EXCHANGE MEMBRANE

Publication Number WO/2020/068930
Publication Date 02.04.2020
International Application No. PCT/US2019/052887
International Filing Date 25.09.2019
IPC
B01D 61/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
B01D 61/42 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
42Electrodialysis; Electro-osmosis
B01D 61/44 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
61Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
42Electrodialysis; Electro-osmosis
44Ion-selective electrodialysis
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
C25B 13/08
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
13Diaphragms; Spacing elements
04characterised by the material
08based on organic materials
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) MONOVALENT SELECTIVE CATION EXCHANGE MEMBRANE
(FR) MEMBRANE ÉCHANGEUSE DE CATIONS SÉLECTIVE MONOVALENTE
Abstract
(EN)
A monovalent selective ion exchange membrane is disclosed. The membrane includes a polymeric microporous substrate, a cross-linked ion-transferring polymeric layer on a surface of the substrate, and a charged functionalizing layer covalently bound to the ion-transferring layer. A method of producing a monovalent selective cation exchange membrane is also disclosed. The method may include chemically adsorbing a styrene intermediate layer to a cross-linked ion-transferring polymeric layer on a surface of a polymeric microporous substrate, chlorosulfonating the styrene intermediate layer to attach a sulfonyl chloride group layer, aminating the sulfonyl group layer to attach an amine group layer, and functionalizing the amine group layer with a charged compound layer to produce the cation exchange membrane. Water treatment systems including the monovalent selective cation exchange membrane and methods of facilitating water treatment including providing the monovalent selective cation exchange membrane are also disclosed.
(FR)
L'invention concerne une membrane échangeuse d'ions sélective monovalente. La membrane comprend un substrat microporeux polymère, une couche polymère de transfert d'ions réticulée sur une surface du substrat, et une couche de fonctionnalisation chargée liée de manière covalente à la couche de transfert d'ions. L'invention concerne également un procédé de fabrication d'une membrane échangeuse de cations sélective monovalente. Le procédé peut comprendre l'adsorption chimique d'une couche intermédiaire de styrène sur une couche polymère de transfert d'ions réticulée sur une surface d'un substrat microporeux polymère, la chlorosulfonation de la couche intermédiaire de styrène pour fixer une couche de groupe chlorure de sulfonyle, l'amination de la couche de groupe sulfonyle pour fixer une couche de groupe amine, et la fonctionnalisation de la couche de groupe amine avec une couche d'un composé chargé pour produire la membrane échangeuse de cations. L'invention concerne également des systèmes de traitement de l'eau comprenant la membrane échangeuse de cations sélective monovalente et des procédés pour faciliter le traitement de l'eau comprenant la fourniture de la membrane échangeuse de cations sélective monovalente.
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