SG11201903202VA - Osmotic membrane - Google Patents

Osmotic membrane

Info

Publication number
SG11201903202VA
SG11201903202VA SG11201903202VA SG11201903202VA SG11201903202VA SG 11201903202V A SG11201903202V A SG 11201903202VA SG 11201903202V A SG11201903202V A SG 11201903202VA SG 11201903202V A SG11201903202V A SG 11201903202VA SG 11201903202V A SG11201903202V A SG 11201903202VA
Authority
SG
Singapore
Prior art keywords
international
massachusetts
gradiant
wildwood
woburn
Prior art date
Application number
SG11201903202VA
Inventor
Prakash Govindan
Looh Tchuin Choong
Original Assignee
Gradiant Corp
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 Gradiant Corp filed Critical Gradiant Corp
Publication of SG11201903202VA publication Critical patent/SG11201903202VA/en

Links

Classifications

    • 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
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • 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
    • B01D69/10—Supported membranes; Membrane supports
    • 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
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
    • 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
    • B01D61/14—Ultrafiltration; Microfiltration
    • 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
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • 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
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/107—Organic support material
    • 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
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/107—Organic support material
    • B01D69/1071—Woven, non-woven or net mesh
    • 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
    • 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
    • B01D69/1216—Three or more layers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/25—Recirculation, recycling or bypass, e.g. recirculation of concentrate into the feed
    • B01D2311/251—Recirculation of permeate
    • B01D2311/2512—Recirculation of permeate to feed side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/24—Use of template or surface directing agents [SDA]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/39—Electrospinning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/04—Characteristic thickness
    • 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
    • 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
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
    • B01D71/64—Polyimides; Polyamide-imides; Polyester-imides; Polyamide acids or similar polyimide precursors
    • 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
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68—Polysulfones; Polyethersulfones

Abstract

Title: OSMOTIC MEMBRANE 34 .,4•t' , :' , ,.., \‘‘\ ,AReigh,g:....:::::,.... \ FIG. 5 N N O 00 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 26 April 2018 (26.04.2018) WIP0 I PCT omit °nolo olo olo limo oimIE (10) International Publication Number WO 2018/075637 Al (51) International Patent Classification: BOlD 61/02 (2006.01) BOlD 69/12 (2006.01) BOlD 69/10 (2006.01) (21) International Application Number: PCT/US2017/057186 (22) International Filing Date: 18 October 2017 (18.10.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/410,170 19 October 2016 (19.10.2016) US (71) Applicant: GRADIANT CORPORATION [US/US]; 225 Wildwood Avenue, Woburn, Massachusetts 01801 (US). (72) Inventors: GOVINDAN, Prakash; Gradiant Corporation, 225 Wildwood Avenue, Woburn, Massachusetts 01801 (US). CHOONG, Looh Tchuin; Gradiant Corporation, 225 Wildwood Avenue, Woburn, Massachusetts 01801 (US). (74) Agent: SAYRE, Robert; Modern Times Legal, 1 Broad- way, 14th Floor, Cambridge, Massachusetts 02142 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) 38 1-1 (57) : An osmotic membrane comprises an active layer and a composite support layer. The active layer selectively allows © passage of water molecules but rejects at least some dissolved ions. The composite support layer includes a side that is bonded to the active layer and comprises an electrospun-fiber sub-layer and a phase-inversion sub-layer. C
SG11201903202VA 2016-10-19 2017-10-18 Osmotic membrane SG11201903202VA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662410170P 2016-10-19 2016-10-19
PCT/US2017/057186 WO2018075637A1 (en) 2016-10-19 2017-10-18 Osmotic membrane

Publications (1)

Publication Number Publication Date
SG11201903202VA true SG11201903202VA (en) 2019-05-30

Family

ID=61902528

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201903202VA SG11201903202VA (en) 2016-10-19 2017-10-18 Osmotic membrane

Country Status (8)

Country Link
US (1) US10888820B2 (en)
EP (1) EP3528931A4 (en)
CN (1) CN109922873B (en)
AU (1) AU2017346858C1 (en)
CA (1) CA3040312A1 (en)
SA (1) SA519401608B1 (en)
SG (1) SG11201903202VA (en)
WO (1) WO2018075637A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014129998A (en) 2012-11-30 2014-07-10 Akira Ishibashi Wall, high-clean room system, manufacturing method thereof and architectural structure
AU2016298326B2 (en) 2015-07-29 2022-08-04 Gradiant Corporation Osmotic desalination methods and associated systems
US10245555B2 (en) 2015-08-14 2019-04-02 Gradiant Corporation Production of multivalent ion-rich process streams using multi-stage osmotic separation
WO2017030932A1 (en) 2015-08-14 2017-02-23 Gradiant Corporation Selective retention of multivalent ions
AU2019325567A1 (en) 2018-08-22 2021-03-04 Gradiant Corporation Liquid solution concentration system comprising isolated subsystem and related methods
AU2021383601A1 (en) 2020-11-17 2023-06-08 Gradiant Corporaton Osmotic methods and systems involving energy recovery
WO2022167951A1 (en) * 2021-02-02 2022-08-11 Gradiant Corporation Strong hollow-fiber membranes for saline desalination and water treatment
US11534719B1 (en) 2021-07-02 2022-12-27 Gradiant Corporation Membranes with controlled porosity for serial filtration

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008118228A2 (en) * 2006-12-05 2008-10-02 Stonybrook Water Purification Articles comprising a fibrous support
WO2008137082A1 (en) * 2007-05-02 2008-11-13 Yale University Method for designing membranes for osmotically driven membrane processes
US8216473B2 (en) 2008-06-13 2012-07-10 Solution Dynamics, Llc Apparatus and methods for solution processing using reverse osmosis
EP2504081A1 (en) * 2009-11-25 2012-10-03 I.D.E. Technologies Ltd. Reciprocal enhancement of reverse osmosis and forward osmosis
WO2011069050A1 (en) 2009-12-03 2011-06-09 Yale University High flux thin-film composite forward osmosis and pressure-retarded osmosis membranes
WO2012102680A1 (en) * 2011-01-25 2012-08-02 Nanyang Technological University A forward osmosis membrane and method of forming a forward osmosis membrane
US11154821B2 (en) * 2011-04-01 2021-10-26 Emd Millipore Corporation Nanofiber containing composite membrane structures
CN103147253B (en) * 2013-03-05 2015-03-04 中国科学院理化技术研究所 High-strength polyimide nano fiber porous membrane, and preparation method and application thereof
CN105683093B (en) 2013-08-05 2019-07-09 格雷迪安特公司 Water treatment system and correlation technique
KR101572660B1 (en) 2013-12-31 2015-11-27 도레이케미칼 주식회사 Reverse osmosis membrane with nanofiber-web layer and method for manufacturing thereof
KR20170028351A (en) 2014-07-07 2017-03-13 이 아이 듀폰 디 네모아 앤드 캄파니 Composite filtration membranes comprising a casted membrane on a nanofiber sheet
AU2016298326B2 (en) 2015-07-29 2022-08-04 Gradiant Corporation Osmotic desalination methods and associated systems
CN105597574B (en) * 2016-02-03 2018-02-23 东华大学 A kind of preparation method of compound forward osmosis membrane

Also Published As

Publication number Publication date
AU2017346858A1 (en) 2019-05-02
EP3528931A1 (en) 2019-08-28
US10888820B2 (en) 2021-01-12
AU2017346858C1 (en) 2022-03-31
EP3528931A4 (en) 2020-06-17
CN109922873B (en) 2021-11-02
US20180104649A1 (en) 2018-04-19
CA3040312A1 (en) 2018-04-26
WO2018075637A1 (en) 2018-04-26
CN109922873A (en) 2019-06-21
SA519401608B1 (en) 2022-01-08
AU2017346858B2 (en) 2021-11-18

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