WO2012112123A8 - Forward osmosis membrane and method of manufacture - Google Patents

Forward osmosis membrane and method of manufacture Download PDF

Info

Publication number
WO2012112123A8
WO2012112123A8 PCT/SG2012/000042 SG2012000042W WO2012112123A8 WO 2012112123 A8 WO2012112123 A8 WO 2012112123A8 SG 2012000042 W SG2012000042 W SG 2012000042W WO 2012112123 A8 WO2012112123 A8 WO 2012112123A8
Authority
WO
WIPO (PCT)
Prior art keywords
osmosis membrane
forward osmosis
sublayer
manufacture
elongated pores
Prior art date
Application number
PCT/SG2012/000042
Other languages
French (fr)
Other versions
WO2012112123A1 (en
Inventor
Tai-Shung Chung
Kaiyu Wang
Original Assignee
National University Of Singapore
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National University Of Singapore filed Critical National University Of Singapore
Priority to US13/984,454 priority Critical patent/US20130313185A1/en
Priority to SG2013059290A priority patent/SG192271A1/en
Publication of WO2012112123A1 publication Critical patent/WO2012112123A1/en
Publication of WO2012112123A8 publication Critical patent/WO2012112123A8/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B01D69/1251—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction by interfacial polymerisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/56—Polyamides, e.g. polyester-amides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/219—Specific solvent system
    • B01D2323/22—Specific non-solvents or non-solvent system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B01D2325/0233—Asymmetric membranes with clearly distinguishable layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/36—Hydrophilic membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/002—Forward osmosis or direct osmosis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A forward osmosis membrane (10) and method (50) of forming the forward osmosis membrane (10) are provided. The forward osmosis membrane (10) has an integral hydrophilic asymmetric layer (12). The integral hydrophilic asymmetric layer (12) includes a first sublayer (18) having a plurality of first elongated pores (20) extending along a depth of the first sublayer (18) and a second sublayer (22) having a plurality of second elongated pores (24) extending along a thickness of the second sublayer (22). The first elongated pores (20) are dimensionally smaller than the second elongated pores (24). A polyamide layer (14) is formed over a surface of the integral hydrophilic asymmetric layer (12).
PCT/SG2012/000042 2010-12-13 2012-02-13 Forward osmosis membrane and method of manufacture WO2012112123A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/984,454 US20130313185A1 (en) 2010-12-13 2012-02-13 Forward osmosis membrane and method of manufacture
SG2013059290A SG192271A1 (en) 2011-02-14 2012-02-13 Forward osmosis membrane and method of manufacture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161442328P 2011-02-14 2011-02-14
US61/442,328 2011-02-14

Publications (2)

Publication Number Publication Date
WO2012112123A1 WO2012112123A1 (en) 2012-08-23
WO2012112123A8 true WO2012112123A8 (en) 2012-10-18

Family

ID=46672845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2012/000042 WO2012112123A1 (en) 2010-12-13 2012-02-13 Forward osmosis membrane and method of manufacture

Country Status (2)

Country Link
SG (2) SG192271A1 (en)
WO (1) WO2012112123A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015073820A1 (en) * 2013-11-14 2015-05-21 Entegris, Inc. Microporous polyamide-imide membranes
US10583404B2 (en) 2014-08-21 2020-03-10 Asahi Kasei Kabushiki Kaisha Composite hollow fiber membrane module and manufacturing method therefor
CN109304103B (en) * 2017-07-28 2021-11-02 中国科学院宁波材料技术与工程研究所 Loose type high-flux seawater desalination membrane and preparation method and application thereof
JP2024509442A (en) * 2021-03-05 2024-03-01 中国石油化工股▲ふん▼有限公司 Bicontinuous highly interconnected polymer ultrafiltration membranes and their preparation methods and applications
CN114849488B (en) * 2022-03-14 2023-04-07 中国科学院宁波材料技术与工程研究所 Asymmetric wettability forward osmosis membrane and preparation method and application thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8022013B2 (en) * 2003-08-29 2011-09-20 Illumina, Inc. Method of forming and using solid-phase support
US7445712B2 (en) * 2005-04-07 2008-11-04 Hydration Technologies Inc. Asymmetric forward osmosis membranes
WO2008137082A1 (en) * 2007-05-02 2008-11-13 Yale University Method for designing membranes for osmotically driven membrane processes
WO2010144057A1 (en) * 2009-06-10 2010-12-16 National University Of Singapore Double selective-layer membranes
WO2011069050A1 (en) * 2009-12-03 2011-06-09 Yale University High flux thin-film composite forward osmosis and pressure-retarded osmosis membranes

Also Published As

Publication number Publication date
SG10201601022TA (en) 2016-03-30
SG192271A1 (en) 2013-09-30
WO2012112123A1 (en) 2012-08-23

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