AU2002219904A1 - Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof - Google Patents
Low pressure reverse osmosis and nanofiltration membranes and method for the production thereofInfo
- Publication number
- AU2002219904A1 AU2002219904A1 AU2002219904A AU1990402A AU2002219904A1 AU 2002219904 A1 AU2002219904 A1 AU 2002219904A1 AU 2002219904 A AU2002219904 A AU 2002219904A AU 1990402 A AU1990402 A AU 1990402A AU 2002219904 A1 AU2002219904 A1 AU 2002219904A1
- Authority
- AU
- Australia
- Prior art keywords
- membranes
- reverse osmosis
- percent
- low pressure
- production
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
- 239000012528 membrane Substances 0.000 title abstract 5
- 238000001223 reverse osmosis Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 238000001728 nano-filtration Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 230000004907 flux Effects 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 abstract 1
- 235000019341 magnesium sulphate Nutrition 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
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
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
-
- 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
-
- 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
- B01D2323/30—Cross-linking
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Novel low pressure reverse osmosis and nanofiltration membranes and a process for their preparation are disclosed. Polyamide reverse osmosis membranes are contacted with organic sulfonic acid solutions without the need for additional treatment by a rejection enhancing agent. These membranes provide sodium chloride rejections of greater than 20 percent and water fluxes greater than 15 gallons per square foot per day at a test pressure of 75 psi. Optimally treated membranes when tested similarly on 0.2 percent magnesium sulfate provide rejections greater than 95 percent with water fluxes greater than 15 gallons per square foot per day.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/724,883 | 2000-11-28 | ||
| US09/724,883 US7001518B1 (en) | 2000-11-28 | 2000-11-28 | Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof |
| PCT/US2001/044486 WO2002043842A2 (en) | 2000-11-28 | 2001-11-28 | Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2002219904A1 true AU2002219904A1 (en) | 2002-06-11 |
Family
ID=24912312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2002219904A Abandoned AU2002219904A1 (en) | 2000-11-28 | 2001-11-28 | Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7001518B1 (en) |
| EP (1) | EP1345673B1 (en) |
| KR (1) | KR20030074630A (en) |
| AT (1) | ATE409075T1 (en) |
| AU (1) | AU2002219904A1 (en) |
| CA (1) | CA2430036A1 (en) |
| DE (1) | DE60134776D1 (en) |
| WO (1) | WO2002043842A2 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007133362A1 (en) * | 2006-05-12 | 2007-11-22 | Dow Global Technologies Inc. | Modified membrane |
| CN100453153C (en) * | 2006-08-17 | 2009-01-21 | 贵阳时代汇通膜科技有限公司 | Extreme low-voltage composite reverse osmosis membrane and production method thereof |
| CN101234295B (en) * | 2007-02-02 | 2010-10-27 | 天津威德泰科石化科技发展有限公司 | Processing method for reducing NaCl removal rate of nano filter membrane |
| BR112014013750A8 (en) * | 2011-12-07 | 2017-06-13 | Dupont Nutrition Biosci Aps | nanofiltration polymeric membrane treatment process |
| DK177696B1 (en) * | 2013-02-25 | 2014-03-17 | Aquaporin As | Systems for water extraction |
| US10384167B2 (en) | 2013-11-21 | 2019-08-20 | Oasys Water LLC | Systems and methods for improving performance of osmotically driven membrane systems |
| CN103599706B (en) * | 2013-12-03 | 2015-04-08 | 燕山大学 | Preparation method of 3-aminopropyltrimethoxysilane-ethylenediamine tetramethylenephosphonic acid/polyvinylidene fluoride chelating membrane |
| CN105848767B (en) | 2013-12-26 | 2019-06-18 | 株式会社Lg化学 | High performance dry type water treatment separator and its manufacturing method based on polyamide |
| US9795928B2 (en) | 2014-06-24 | 2017-10-24 | Nano And Advanced Materials Institute Limited | Stepwise interfacial polymerization technique with different reagent solution designs to prepare hollow fiber nanofiltration membrane composites |
| CN104190265A (en) * | 2014-08-31 | 2014-12-10 | 浙江大学 | Low-pressure high-flux chlorine-containing polymer nanofiltration membrane with stable separation layer and preparation method thereof |
| JP2021506580A (en) | 2017-12-21 | 2021-02-22 | 日東電工株式会社 | Graphene oxide film protective coating |
| CN114749034B (en) * | 2022-04-26 | 2023-08-18 | 新疆中泰创新技术研究院有限责任公司 | Acid-resistant nanofiltration membrane with double-layer structure and preparation method and application thereof |
| CN115624868B (en) * | 2022-12-22 | 2023-03-10 | 湖南沁森高科新材料有限公司 | Reverse osmosis membrane and preparation method thereof |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4259183A (en) | 1978-11-07 | 1981-03-31 | Midwest Research Institute | Reverse osmosis membrane |
| US4277344A (en) | 1979-02-22 | 1981-07-07 | Filmtec Corporation | Interfacially synthesized reverse osmosis membrane |
| US4520044A (en) | 1984-07-30 | 1985-05-28 | E. I. Du Pont De Nemours And Company | Production of composite membranes |
| US4761234A (en) | 1985-08-05 | 1988-08-02 | Toray Industries, Inc. | Interfacially synthesized reverse osmosis membrane |
| US4812270A (en) | 1986-04-28 | 1989-03-14 | Filmtec Corporation | Novel water softening membranes |
| US4765897A (en) | 1986-04-28 | 1988-08-23 | The Dow Chemical Company | Polyamide membranes useful for water softening |
| US4872984A (en) | 1988-09-28 | 1989-10-10 | Hydranautics Corporation | Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparing the same |
| US4983291A (en) * | 1989-12-14 | 1991-01-08 | Allied-Signal Inc. | Dry high flux semipermeable membranes |
| US5254261A (en) | 1991-08-12 | 1993-10-19 | Hydranautics | Interfacially synthesized reverse osmosis membranes and processes for preparing the same |
| JP3646362B2 (en) * | 1995-08-18 | 2005-05-11 | 東レ株式会社 | Semipermeable membrane and method for producing the same |
| US6063278A (en) * | 1998-04-28 | 2000-05-16 | Saehan Industries Inc. | Composite polyamide reverse osmosis membrane and method of producing the same |
-
2000
- 2000-11-28 US US09/724,883 patent/US7001518B1/en not_active Expired - Fee Related
-
2001
- 2001-11-28 AU AU2002219904A patent/AU2002219904A1/en not_active Abandoned
- 2001-11-28 WO PCT/US2001/044486 patent/WO2002043842A2/en not_active Application Discontinuation
- 2001-11-28 EP EP01998391A patent/EP1345673B1/en not_active Expired - Lifetime
- 2001-11-28 AT AT01998391T patent/ATE409075T1/en not_active IP Right Cessation
- 2001-11-28 CA CA002430036A patent/CA2430036A1/en not_active Abandoned
- 2001-11-28 DE DE60134776T patent/DE60134776D1/en not_active Expired - Lifetime
- 2001-11-28 KR KR10-2003-7007145A patent/KR20030074630A/en active Search and Examination
Also Published As
| Publication number | Publication date |
|---|---|
| CA2430036A1 (en) | 2002-06-06 |
| WO2002043842A2 (en) | 2002-06-06 |
| KR20030074630A (en) | 2003-09-19 |
| EP1345673A2 (en) | 2003-09-24 |
| EP1345673B1 (en) | 2008-09-24 |
| ATE409075T1 (en) | 2008-10-15 |
| DE60134776D1 (en) | 2009-04-02 |
| WO2002043842A3 (en) | 2002-08-01 |
| US7001518B1 (en) | 2006-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2002219904A1 (en) | Low pressure reverse osmosis and nanofiltration membranes and method for the production thereof | |
| EP2070583A3 (en) | Production of purified water and high value chemicals from salt water | |
| EP1323460A4 (en) | Method of recovering fluorochemical surfactant | |
| EP1320410A4 (en) | Bipolar membrane electrodialysis of multivalent metal salts | |
| BRPI0412321A (en) | cleaning peroxide filtration membranes | |
| ATE285288T1 (en) | COMPOSITE REVERSE OSMOSIS MEMBRANES AND METHOD FOR THE PRODUCTION THEREOF | |
| TWI265045B (en) | Water-generating process and water generator | |
| WO2004002895A3 (en) | Ballast water treatment systems including related apparatus and methods | |
| WO2000040513A8 (en) | Method and apparatus for microfiltration | |
| AU6370900A (en) | Method for reducing metal ion concentration in brine solution | |
| DE602006003757D1 (en) | WATER FLOOD PROCEDURE | |
| ATE496683T1 (en) | NANOFILTRATION SEAWATER DESALINATION PROCESS | |
| ITRM20040292A1 (en) | INTEGRAL RECOVERY PROCEDURE OF VEGETATION WATER CHEMICAL COMPONENTS WITH MEMBRANE TECHNOLOGIES. | |
| GB2373743B (en) | Solvent exchange process | |
| CA2407559A1 (en) | Process for the preparation of pharmaceutically acceptable salts of (ss-rs)-s-adenosyl-l-methionine | |
| FR2400488A1 (en) | METHOD AND DEVICE FOR THE PRODUCTION OF APYROGEN STERILE WATER | |
| ATE386734T1 (en) | METHOD FOR PRODUCING (4-HYDROXY-6-OXO-TETRAHYDROPYRAN-2-YL)ACETONITRILE AND DERIVATIVES THEREOF | |
| EP1460042A3 (en) | Methods for the production of potable mineral water | |
| WO2003028866A1 (en) | Filtering device and method of cleaning reverse osmosis membrane | |
| ATE266635T1 (en) | METHOD FOR PRODUCING ZOFENOPRIL CALCIUM SALT | |
| WO2002004082A3 (en) | Method for modifying membrane rejection characteristics | |
| BRPI0416580A (en) | water treatment system and method | |
| IE34250B1 (en) | Itaconic acid purification process using reverse osmosis | |
| ATE355255T1 (en) | DISSOLUTION-INHIBITING AGENTS FOR PRODUCING PURIFIED BRINES | |
| ATE457994T1 (en) | METHOD FOR PURIFYING VANCOMYCIN |