JPS6354905A - 半透性複合膜の製造方法 - Google Patents
半透性複合膜の製造方法Info
- Publication number
- JPS6354905A JPS6354905A JP61197291A JP19729186A JPS6354905A JP S6354905 A JPS6354905 A JP S6354905A JP 61197291 A JP61197291 A JP 61197291A JP 19729186 A JP19729186 A JP 19729186A JP S6354905 A JPS6354905 A JP S6354905A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- chlorine
- composite membrane
- contg
- soln
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 79
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000460 chlorine Substances 0.000 claims abstract description 26
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 26
- 239000004760 aramid Substances 0.000 claims abstract description 9
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 9
- 239000007864 aqueous solution Substances 0.000 claims description 23
- 238000010406 interfacial reaction Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- -1 aromatic acid halide Chemical class 0.000 abstract description 18
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 12
- 230000035699 permeability Effects 0.000 abstract description 11
- 238000001223 reverse osmosis Methods 0.000 abstract description 5
- 239000005708 Sodium hypochlorite Substances 0.000 abstract description 4
- 125000003277 amino group Chemical group 0.000 abstract description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 abstract description 4
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 abstract description 3
- 150000004982 aromatic amines Chemical class 0.000 abstract description 3
- 239000004155 Chlorine dioxide Substances 0.000 abstract description 2
- 235000019398 chlorine dioxide Nutrition 0.000 abstract description 2
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 abstract 1
- 239000007844 bleaching agent Substances 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 12
- 239000000243 solution Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 6
- 229920002492 poly(sulfone) Polymers 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- UWCPYKQBIPYOLX-UHFFFAOYSA-N benzene-1,3,5-tricarbonyl chloride Chemical compound ClC(=O)C1=CC(C(Cl)=O)=CC(C(Cl)=O)=C1 UWCPYKQBIPYOLX-UHFFFAOYSA-N 0.000 description 4
- 238000005660 chlorination reaction Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- LXEJRKJRKIFVNY-UHFFFAOYSA-N terephthaloyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C=C1 LXEJRKJRKIFVNY-UHFFFAOYSA-N 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 229920002301 cellulose acetate Polymers 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 230000007717 exclusion Effects 0.000 description 3
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- AJDIZQLSFPQPEY-UHFFFAOYSA-N 1,1,2-Trichlorotrifluoroethane Chemical compound FC(F)(Cl)C(F)(Cl)Cl AJDIZQLSFPQPEY-UHFFFAOYSA-N 0.000 description 1
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 description 1
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- HEAHMJLHQCESBZ-UHFFFAOYSA-N 2,5-diaminobenzenesulfonic acid Chemical compound NC1=CC=C(N)C(S(O)(=O)=O)=C1 HEAHMJLHQCESBZ-UHFFFAOYSA-N 0.000 description 1
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- UENRXLSRMCSUSN-UHFFFAOYSA-N 3,5-diaminobenzoic acid Chemical compound NC1=CC(N)=CC(C(O)=O)=C1 UENRXLSRMCSUSN-UHFFFAOYSA-N 0.000 description 1
- UITKHKNFVCYWNG-UHFFFAOYSA-N 4-(3,4-dicarboxybenzoyl)phthalic acid Chemical compound C1=C(C(O)=O)C(C(=O)O)=CC=C1C(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 UITKHKNFVCYWNG-UHFFFAOYSA-N 0.000 description 1
- XPDVQPODLRGWPL-UHFFFAOYSA-N 4-(dichlorosulfamoyl)benzoic acid Chemical compound OC(=O)C1=CC=C(S(=O)(=O)N(Cl)Cl)C=C1 XPDVQPODLRGWPL-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004693 Polybenzimidazole Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical class ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000777 acyl halide group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- FNGBYWBFWZVPPV-UHFFFAOYSA-N benzene-1,2,4,5-tetracarbonyl chloride Chemical compound ClC(=O)C1=CC(C(Cl)=O)=C(C(Cl)=O)C=C1C(Cl)=O FNGBYWBFWZVPPV-UHFFFAOYSA-N 0.000 description 1
- CJPIDIRJSIUWRJ-UHFFFAOYSA-N benzene-1,2,4-tricarbonyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C(C(Cl)=O)=C1 CJPIDIRJSIUWRJ-UHFFFAOYSA-N 0.000 description 1
- YBGQXNZTVFEKEN-UHFFFAOYSA-N benzene-1,2-disulfonyl chloride Chemical compound ClS(=O)(=O)C1=CC=CC=C1S(Cl)(=O)=O YBGQXNZTVFEKEN-UHFFFAOYSA-N 0.000 description 1
- RPHKINMPYFJSCF-UHFFFAOYSA-N benzene-1,3,5-triamine Chemical compound NC1=CC(N)=CC(N)=C1 RPHKINMPYFJSCF-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- VDQQXEISLMTGAB-UHFFFAOYSA-N chloramine T Chemical compound [Na+].CC1=CC=C(S(=O)(=O)[N-]Cl)C=C1 VDQQXEISLMTGAB-UHFFFAOYSA-N 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000007973 cyanuric acids Chemical class 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229960001648 halazone Drugs 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- WUQGUKHJXFDUQF-UHFFFAOYSA-N naphthalene-1,2-dicarbonyl chloride Chemical compound C1=CC=CC2=C(C(Cl)=O)C(C(=O)Cl)=CC=C21 WUQGUKHJXFDUQF-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 229920002480 polybenzimidazole Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- WPNXWWLAOCWIDT-UHFFFAOYSA-N pyridine-2,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CN=C1C(Cl)=O WPNXWWLAOCWIDT-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 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
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61197291A JPS6354905A (ja) | 1986-08-25 | 1986-08-25 | 半透性複合膜の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61197291A JPS6354905A (ja) | 1986-08-25 | 1986-08-25 | 半透性複合膜の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6354905A true JPS6354905A (ja) | 1988-03-09 |
| JPH051051B2 JPH051051B2 (enrdf_load_stackoverflow) | 1993-01-07 |
Family
ID=16372020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61197291A Granted JPS6354905A (ja) | 1986-08-25 | 1986-08-25 | 半透性複合膜の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6354905A (enrdf_load_stackoverflow) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0787525A1 (en) | 1996-01-24 | 1997-08-06 | Nitto Denko Corporation | Highly permeable composite reverse osmosis membrane |
| WO1999022836A3 (en) * | 1997-11-04 | 1999-10-28 | Dow Chemical Co | Treatment of composite polyamide membranes with hypochlorite to improve performance |
| US5989426A (en) * | 1995-07-05 | 1999-11-23 | Nitto Denko Corp. | Osmosis membrane |
| US6024873A (en) * | 1996-03-21 | 2000-02-15 | Nitto Denko Corporation | Highly permeable composite reverse osmosis membrane and a reverse osmosis membrane module using the same |
| JP2000334280A (ja) * | 1999-05-27 | 2000-12-05 | Nitto Denko Corp | 複合逆浸透膜の製造方法 |
| JP2000350928A (ja) * | 1999-06-10 | 2000-12-19 | Toyobo Co Ltd | 複合半透膜、複合半透膜モジュールおよびそれらの製造方法 |
| JP2003010656A (ja) * | 2001-07-02 | 2003-01-14 | Japan Organo Co Ltd | 分離膜とその改質方法並びに膜分離装置及び方法 |
| KR100460011B1 (ko) * | 1998-02-17 | 2005-04-06 | 주식회사 새 한 | 폴리아미드계 역삼투 분리막의 후처리 공정 |
| JP2008218679A (ja) * | 2007-03-05 | 2008-09-18 | Kandenko Co Ltd | 大容量の変圧器の冷却水供給方法及び装置 |
| JP2009006314A (ja) * | 2007-05-31 | 2009-01-15 | Toray Ind Inc | 複合半透膜の製造方法 |
| JP2009006315A (ja) * | 2007-05-30 | 2009-01-15 | Toray Ind Inc | 複合半透膜の製造方法 |
| WO2011078131A1 (ja) | 2009-12-22 | 2011-06-30 | 東レ株式会社 | 半透膜およびその製造方法 |
| WO2013047398A1 (ja) | 2011-09-29 | 2013-04-04 | 東レ株式会社 | 複合半透膜 |
| WO2015046582A1 (ja) | 2013-09-30 | 2015-04-02 | 東レ株式会社 | 複合半透膜およびその製造方法 |
| KR20150124952A (ko) | 2013-02-28 | 2015-11-06 | 도레이 카부시키가이샤 | 복합 반투막 |
| KR20180074694A (ko) | 2015-10-27 | 2018-07-03 | 도레이 카부시키가이샤 | 복합 반투막 및 그의 제조 방법 |
| WO2019187870A1 (ja) * | 2018-03-29 | 2019-10-03 | 栗田工業株式会社 | 選択性透過膜、その製造方法及び水処理方法 |
| JP2019171360A (ja) * | 2018-03-29 | 2019-10-10 | 栗田工業株式会社 | 選択性透過膜、その製造方法及び水処理方法 |
| JP2020535957A (ja) * | 2018-07-09 | 2020-12-10 | エルジー・ケム・リミテッド | 水処理分離膜、これを含む水処理モジュールおよびその製造方法 |
| US11944940B2 (en) * | 2018-01-18 | 2024-04-02 | Lg Chem, Ltd. | Method for preparation of water-treatment separation membrane and water-treatment separation membrane prepared thereby |
-
1986
- 1986-08-25 JP JP61197291A patent/JPS6354905A/ja active Granted
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5989426A (en) * | 1995-07-05 | 1999-11-23 | Nitto Denko Corp. | Osmosis membrane |
| EP0787525A1 (en) | 1996-01-24 | 1997-08-06 | Nitto Denko Corporation | Highly permeable composite reverse osmosis membrane |
| US6171497B1 (en) | 1996-01-24 | 2001-01-09 | Nitto Denko Corporation | Highly permeable composite reverse osmosis membrane |
| US6024873A (en) * | 1996-03-21 | 2000-02-15 | Nitto Denko Corporation | Highly permeable composite reverse osmosis membrane and a reverse osmosis membrane module using the same |
| WO1999022836A3 (en) * | 1997-11-04 | 1999-10-28 | Dow Chemical Co | Treatment of composite polyamide membranes with hypochlorite to improve performance |
| KR100460011B1 (ko) * | 1998-02-17 | 2005-04-06 | 주식회사 새 한 | 폴리아미드계 역삼투 분리막의 후처리 공정 |
| JP2000334280A (ja) * | 1999-05-27 | 2000-12-05 | Nitto Denko Corp | 複合逆浸透膜の製造方法 |
| JP2000350928A (ja) * | 1999-06-10 | 2000-12-19 | Toyobo Co Ltd | 複合半透膜、複合半透膜モジュールおよびそれらの製造方法 |
| JP2003010656A (ja) * | 2001-07-02 | 2003-01-14 | Japan Organo Co Ltd | 分離膜とその改質方法並びに膜分離装置及び方法 |
| JP2008218679A (ja) * | 2007-03-05 | 2008-09-18 | Kandenko Co Ltd | 大容量の変圧器の冷却水供給方法及び装置 |
| JP2009006315A (ja) * | 2007-05-30 | 2009-01-15 | Toray Ind Inc | 複合半透膜の製造方法 |
| JP2009006314A (ja) * | 2007-05-31 | 2009-01-15 | Toray Ind Inc | 複合半透膜の製造方法 |
| WO2011078131A1 (ja) | 2009-12-22 | 2011-06-30 | 東レ株式会社 | 半透膜およびその製造方法 |
| WO2013047398A1 (ja) | 2011-09-29 | 2013-04-04 | 東レ株式会社 | 複合半透膜 |
| KR20140082644A (ko) | 2011-09-29 | 2014-07-02 | 도레이 카부시키가이샤 | 복합 반투막 |
| KR20150124952A (ko) | 2013-02-28 | 2015-11-06 | 도레이 카부시키가이샤 | 복합 반투막 |
| WO2015046582A1 (ja) | 2013-09-30 | 2015-04-02 | 東レ株式会社 | 複合半透膜およびその製造方法 |
| KR20160063337A (ko) | 2013-09-30 | 2016-06-03 | 도레이 카부시키가이샤 | 복합 반투막 및 그의 제조 방법 |
| KR20180074694A (ko) | 2015-10-27 | 2018-07-03 | 도레이 카부시키가이샤 | 복합 반투막 및 그의 제조 방법 |
| US11045771B2 (en) | 2015-10-27 | 2021-06-29 | Toray Industries, Inc. | Composite semipermeable membrane and method for producing same |
| US11944940B2 (en) * | 2018-01-18 | 2024-04-02 | Lg Chem, Ltd. | Method for preparation of water-treatment separation membrane and water-treatment separation membrane prepared thereby |
| WO2019187870A1 (ja) * | 2018-03-29 | 2019-10-03 | 栗田工業株式会社 | 選択性透過膜、その製造方法及び水処理方法 |
| JP2019171360A (ja) * | 2018-03-29 | 2019-10-10 | 栗田工業株式会社 | 選択性透過膜、その製造方法及び水処理方法 |
| JP2020535957A (ja) * | 2018-07-09 | 2020-12-10 | エルジー・ケム・リミテッド | 水処理分離膜、これを含む水処理モジュールおよびその製造方法 |
| US11517861B2 (en) | 2018-07-09 | 2022-12-06 | Lg Chem, Ltd. | Water treatment separation membrane, water treatment module comprising same, and manufacturing method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH051051B2 (enrdf_load_stackoverflow) | 1993-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6354905A (ja) | 半透性複合膜の製造方法 | |
| US5051178A (en) | Process of producing composite semipermeable membrane | |
| Kulkarni et al. | Flux enhancement by hydrophilization of thin film composite reverse osmosis membranes | |
| US5178766A (en) | Composite semipermeable membrane, process of producing the same and method of producing highly pure water using the same | |
| JPS6312310A (ja) | 半透性複合膜の製造方法 | |
| JP4525296B2 (ja) | 複合半透膜の製造方法 | |
| JP2727594B2 (ja) | 複合半透膜の製造方法 | |
| JP3111539B2 (ja) | 複合半透膜の製造方法 | |
| JP3132084B2 (ja) | 逆浸透法用複合膜の製造方法 | |
| JP2006021094A (ja) | 複合半透膜及びその製造方法 | |
| EP0465649B1 (en) | Composite semipermeable membrane and production thereof | |
| JPH07114944B2 (ja) | 半透性複合膜の製造方法 | |
| JP3438278B2 (ja) | 半透性複合膜およびその製造方法 | |
| JPH04161234A (ja) | 複合膜の製造方法 | |
| JPH10235173A (ja) | 複合半透膜及びその製造方法 | |
| JP3106595B2 (ja) | 逆浸透法用複合膜の製造方法 | |
| JP3132090B2 (ja) | 逆浸透法用複合膜の製造方法 | |
| JPH06346A (ja) | 複合半透膜及びスパイラル型膜分離装置 | |
| JPS61101203A (ja) | 高透過性複合膜 | |
| JP2936633B2 (ja) | 複合半透膜 | |
| JPH04104825A (ja) | 複合膜の製造方法 | |
| JPS62279809A (ja) | 半透性複合膜の製造方法 | |
| JPH05317667A (ja) | 逆浸透法用複合膜の製造方法 | |
| JPH09187631A (ja) | 複合逆浸透膜の製造方法およびその装置 | |
| JPS637807A (ja) | 低圧高透過性半透性複合膜の製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |