SG11201902910XA - A hollow fiber membrane - Google Patents
A hollow fiber membraneInfo
- Publication number
- SG11201902910XA SG11201902910XA SG11201902910XA SG11201902910XA SG11201902910XA SG 11201902910X A SG11201902910X A SG 11201902910XA SG 11201902910X A SG11201902910X A SG 11201902910XA SG 11201902910X A SG11201902910X A SG 11201902910XA SG 11201902910X A SG11201902910X A SG 11201902910XA
- Authority
- SG
- Singapore
- Prior art keywords
- hollow fiber
- fiber membrane
- singapore
- international
- engineering
- Prior art date
Links
- 239000012528 membrane Substances 0.000 title abstract 9
- 239000012510 hollow fiber Substances 0.000 title abstract 7
- 239000010410 layer Substances 0.000 abstract 5
- 239000011148 porous material Substances 0.000 abstract 3
- 239000002033 PVDF binder Substances 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000004821 distillation Methods 0.000 abstract 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 229920001600 hydrophobic polymer Polymers 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000008520 organization Effects 0.000 abstract 1
- 239000002356 single layer Substances 0.000 abstract 1
- 238000002166 wet spinning Methods 0.000 abstract 1
Classifications
-
- 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
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/364—Membrane distillation
-
- 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
- B01D69/08—Hollow fibre 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
- B01D69/08—Hollow fibre membranes
- B01D69/087—Details relating to the spinning process
-
- 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
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
-
- 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
- C02F1/447—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by membrane distillation
-
- 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
- B01D2325/025—Finger pores
-
- 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
- B01D2325/026—Sponge structure
-
- 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
- B01D2325/00—Details relating to properties of membranes
- B01D2325/20—Specific permeability or cut-off range
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/24—Mechanical properties, e.g. strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/38—Hydrophobic membranes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Artificial Filaments (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111111111111111111010111111111111111111H111111111111111111111111111111111111110111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ...... WO 2018/080398 Al 03 May 2018 (03.05.2018) WI P0 I P C T (51) International Patent Classification: Department of Chemical and Biomolecular Engineering, 21 BOlD 69/08 (2006.01) BOlD 61/36 (2006.01) Lower Kent Ridge Road, Singapore 119077 (SG). BOlD 67/00 (2006.01) (74) Agent: PATEL, Upasana; Marks & Clerk Singapore LLP, (21) International Application Number: Tanjong Pagar, P 0 Box 636, Singapore 910816 (SG). PCT/SG2017/050538 (81) Designated States (unless otherwise indicated, for every (22) International Filing Date: kind of national protection available): AE, AG, AL, AM, 26 October 2017 (26.10.2017) 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, (25) Filing Language: English DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (26) Publication Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (30) Priority Data: KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, 10201608965S 26 October 2016 (26.10.2016) SG 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, (71) Applicant: NATIONAL UNIVERSITY OF SINGA- SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, PORE [SG/SG]; 21 Lower Kent Ridge Road, Singapore TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. 119077 (SG). (84) Designated States (unless otherwise indicated, for every _ (72) Inventors: ZUO, Man; c/o National University of Singa- kind of regional protection available): ARIPO (BW, GH, pore, Faculty of Engineering, Department of Chemical and GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, Biomolecular Engineering, 21 Lower Kent Ridge Road, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, Singapore 119077 (SG). CHUNG, Tai-Shung Neal; c/o TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, National University of Singapore, Faculty of Engineering, 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, = = = (54) Title: A HOLLOW FIBER MEMBRANE Figure 1 = = 108 102 = = , • 104 ,,• „ = — = = o 0 Ir \" = - 0 s : = = 100 110 106 1-1 112 X) (57) : There is provided a hollow fiber membrane for vacuum membrane distillation having a maximum tensile strength of > 01 en 3.5 MPa and a liquid entry pressure (LEP) of > 3.0 bar, wherein the hollow fiber membrane is a single layer hollow fiber membrane CZ comprising a wall with a thickness of < 150 [im and a cross-section comprising two open cell layers with an array of interconnected 00 c::) pores and a macrovoid layer between the two open cell layers. The open cell layers may be sponge-like porous layers. The hollow ----. fiber membrane may comprise a hydrophobic polymer, in particular polyvinylidene fluoride (PVDF). The hollow fiber membrane is 00 °C and external coagulation bath temperature of , I fabricated via a dry jet wet spinning technique with bore fluid temperature of 25-65 © 25-55 °C. The hollow fiber has improved mechanical strength and vacuum membrane distillation flux. ei O [Continued on next page] WO 2018/080398 Al MIDEDIMOMMIDIREIDINIRMOIMIINIEHMEMOIMIE TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3))
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG10201608965S | 2016-10-26 | ||
PCT/SG2017/050538 WO2018080398A1 (en) | 2016-10-26 | 2017-10-26 | A hollow fiber membrane |
Publications (1)
Publication Number | Publication Date |
---|---|
SG11201902910XA true SG11201902910XA (en) | 2019-05-30 |
Family
ID=62023907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG11201902910XA SG11201902910XA (en) | 2016-10-26 | 2017-10-26 | A hollow fiber membrane |
Country Status (4)
Country | Link |
---|---|
US (1) | US10967331B2 (en) |
CN (1) | CN109906112A (en) |
SG (1) | SG11201902910XA (en) |
WO (1) | WO2018080398A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116322957A (en) * | 2020-07-17 | 2023-06-23 | 新墨西哥科技大学研究园公司 | Method for preparing double-layer polyvinylidene fluoride hollow fiber membrane and application thereof |
CN112058098A (en) * | 2020-08-24 | 2020-12-11 | 苏州富淼膜科技有限公司 | Preparation method of polyvinylidene fluoride hollow fiber ultrafiltration membrane |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0203857L (en) * | 2002-12-20 | 2004-06-21 | Gambro Lundia Ab | Perm-selective membrane and process for its manufacture |
CN1608718A (en) * | 2003-10-17 | 2005-04-27 | 天津膜天膜工程技术有限公司 | Hollow fiber film and its prepn process |
CN102114390A (en) * | 2009-12-30 | 2011-07-06 | 中国科学院生态环境研究中心 | Reinforced type polyvinylidene fluoride hollow fiber hydrophobic membrane and preparation method thereof |
CN102580575B (en) * | 2012-03-06 | 2014-06-04 | 中南大学 | Method for producing polyvinylidene fluoride membrane for membrane distillation |
CN103157391A (en) * | 2012-09-18 | 2013-06-19 | 中南大学 | Preparation method of polyvinylidene fluoride porous film |
CN103495350B (en) * | 2013-10-18 | 2015-07-08 | 天津膜天膜科技股份有限公司 | Hollow hydrophobic fiber membrane and preparation method thereof |
ES2926504T3 (en) * | 2014-02-06 | 2022-10-26 | Gambro Lundia Ab | Membrane for blood purification |
CN105032211A (en) * | 2015-08-25 | 2015-11-11 | 中国科学院生态环境研究中心 | Novel hydrophobic membrane and preparation method thereof |
-
2017
- 2017-10-26 SG SG11201902910XA patent/SG11201902910XA/en unknown
- 2017-10-26 US US16/340,670 patent/US10967331B2/en active Active
- 2017-10-26 WO PCT/SG2017/050538 patent/WO2018080398A1/en active Application Filing
- 2017-10-26 CN CN201780065984.3A patent/CN109906112A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2018080398A1 (en) | 2018-05-03 |
US20190247802A1 (en) | 2019-08-15 |
US10967331B2 (en) | 2021-04-06 |
CN109906112A (en) | 2019-06-18 |
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