KR20070018529A - 보론 제거 기능이 있는 역삼투 분리막의 제조방법 - Google Patents
보론 제거 기능이 있는 역삼투 분리막의 제조방법 Download PDFInfo
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- KR20070018529A KR20070018529A KR1020050073307A KR20050073307A KR20070018529A KR 20070018529 A KR20070018529 A KR 20070018529A KR 1020050073307 A KR1020050073307 A KR 1020050073307A KR 20050073307 A KR20050073307 A KR 20050073307A KR 20070018529 A KR20070018529 A KR 20070018529A
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- reverse osmosis
- osmosis membrane
- boron removal
- producing
- weight
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- 239000012528 membrane Substances 0.000 title claims abstract description 40
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052796 boron Inorganic materials 0.000 title claims abstract description 34
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000000694 effects Effects 0.000 title description 2
- 229920002647 polyamide Polymers 0.000 claims abstract description 17
- 239000004952 Polyamide Substances 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- MBBZMMPHUWSWHV-BDVNFPICSA-N N-methylglucamine Chemical compound CNC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO MBBZMMPHUWSWHV-BDVNFPICSA-N 0.000 claims abstract description 12
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 6
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims abstract description 6
- 150000001412 amines Chemical class 0.000 claims abstract description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 23
- 239000007864 aqueous solution Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 11
- -1 halide compound Chemical class 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- FDQSRULYDNDXQB-UHFFFAOYSA-N benzene-1,3-dicarbonyl chloride Chemical compound ClC(=O)C1=CC=CC(C(Cl)=O)=C1 FDQSRULYDNDXQB-UHFFFAOYSA-N 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims description 4
- 239000003906 humectant Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- LXEJRKJRKIFVNY-UHFFFAOYSA-N terephthaloyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C=C1 LXEJRKJRKIFVNY-UHFFFAOYSA-N 0.000 claims 2
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 239000000080 wetting agent Substances 0.000 claims 1
- 238000012695 Interfacial polymerization Methods 0.000 abstract description 9
- 229960000587 glutaral Drugs 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 150000002366 halogen compounds Chemical class 0.000 abstract description 2
- 239000004745 nonwoven fabric Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229920002492 poly(sulfone) Polymers 0.000 description 5
- 239000013535 sea water Substances 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 229920000768 polyamine Polymers 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 150000001266 acyl halides Chemical class 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 3
- 150000004985 diamines Chemical class 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-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
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 150000003335 secondary amines Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229920001747 Cellulose diacetate Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000720950 Gluta Species 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 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 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cis-cyclohexene Natural products C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- HIZMBMVNMBMUEE-UHFFFAOYSA-N cyclohexane-1,3,5-tricarbonyl chloride Chemical compound ClC(=O)C1CC(C(Cl)=O)CC(C(Cl)=O)C1 HIZMBMVNMBMUEE-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- 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
- 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
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0006—Organic membrane manufacture by chemical reactions
-
- 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
- B01D67/0083—Thermal after-treatment
-
- 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
- B01D69/10—Supported membranes; Membrane supports
- B01D69/105—Support pretreatment
-
- 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
- B01D69/1213—Laminated layers
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/02—Hydrophilization
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
- B01D2323/081—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/12—Specific ratios of components used
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/46—Impregnation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/108—Boron compounds
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims (10)
- 미세다공 지지체에 다관능성아민 용액을 침지한 후 지지체 표면에 있는 과잉 용액을 제거하고 지방족 탄화수소를 용매로 하는 다관능성 산할로겐화합물 용액하에서 계면중합시켜 가교 폴리아미드계 역삼투 복합막을 제조한 후, 습윤제와 친수성을 부여하는 케미칼이 함유된 수용액에 침지한 다음 가열 공정을 거치는 것에 특징이 있는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
- 제 1항에 있어서,상기 수용액은 습윤제로서 글리세롤을 포함하며, 친수성을 부여하는 케미칼로는 N-methyl-D-glucamine 단독 또는 글루타릭디알데히드를 혼합하는 것을 특징으로 하는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
- 제 1항에 있어서,상기 다관능성아민 용액은 메타페닐렌디아민을 0.5∼10중량% 함유한 수용액으로서 지지체에 0.1∼10분간 침지하는 것을 특징으로 하는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
- 제3항에 있어서,상기 다관능성아민 용액은 메타페닐렌디아민을 1∼3중량% 함유한 수용액인것에 특징이 있는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
- 제 1항에 있어서,상기 다관능성 산할로겐화합물 용액은 이소프탈로일클로라이드, 트리메조일클로라이드 및 테레프탈로일클로라이드 중에서 어느하나를 선택하거나 둘 이상을 혼합하고 이를 지방족 탄화수소 용매에 0.01∼2중량% 용해시킨것임을 특징으로 하는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
- 제5항에 있어서,상기 다관능성 산할로겐화합물 용액은 이소프탈로일클로라이드, 트리메조일클로라이드 및 테레프탈로일클로라이드 중에서 어느하나를 선택하거나 둘 이상을 혼합하고 이를 지방족 탄화수소 용매에 0.05∼0.3중량% 용해시킨것임을 특징으로 하는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
- 제 2항에 있어서,상기 수용액은 습윤제인 글리세롤 0.2∼5중량%, 와 N-methyl-D- glucamine 0.0005∼2중량% 단독 또는 글루타릭디알데히드를 0.0001%∼1중량%을 혼합한것임을 특징으로 하는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
- 제 1항에 있어서,상기 가교 폴리아미드계 역삼투 복합막은, 습윤제와 친수성을 부여하는 케미칼이 함유된 수용액에 10초∼5분간 침지 후 50∼80도에서 1∼10분간 가열 처리되는것에 특징이 있는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
- 제8항에 있어서,상기 가교 폴리아미드계 역삼투 복합막이 습윤제와 친수성을 부여하는 케미칼이 함유된 수용액에 0.5∼3분간 침지되는것에 특징이 있는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
- 제7항에 있어서,상기 수용액은 폴리비니알콜 0.0001∼1중량%를 더 포함하는 것에 특징이 있 는, 보론 제거 기능이 있는 역삼투 분리막의 제조방법.
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KR1020050073307A KR100692394B1 (ko) | 2005-08-10 | 2005-08-10 | 보론 제거 기능이 있는 역삼투 분리막의 제조방법 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100781625B1 (ko) * | 2006-12-11 | 2007-12-05 | 주식회사 새 한 | 내오염성 및 내구성이 우수한 폴리아마이드 역삼투분리막의제조방법 및 그로부터 제조된 역삼투분리막 |
KR20180081474A (ko) * | 2017-01-06 | 2018-07-16 | 한국화학연구원 | 붕소 제거능이 우수한 역삼투막 및 이의 제조방법 |
KR20190103667A (ko) | 2018-02-28 | 2019-09-05 | 한국화학연구원 | 나노 기공을 함유하는 멤브레인 및 이의 제조방법 |
WO2019209010A1 (ko) * | 2018-04-23 | 2019-10-31 | 고려대학교 산학협력단 | 방향족 탄화수소를 이용한 우수한 용질 제거 성능을 가진 분리막 제조 기술 |
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KR101025750B1 (ko) | 2008-08-18 | 2011-04-04 | 웅진케미칼 주식회사 | 역삼투 분리막의 제조방법 및 그로부터 제조된 보론 제거능이 우수한 역삼투 분리막 |
KR101296108B1 (ko) * | 2010-12-24 | 2013-08-20 | 웅진케미칼 주식회사 | 보론 제거 성능이 우수한 역삼투 분리막 및 그 제조방법 |
KR101403345B1 (ko) * | 2010-12-27 | 2014-06-11 | 도레이케미칼 주식회사 | 보론 제거용 역삼투 복합막 및 그의 제조방법 |
WO2015099460A1 (ko) * | 2013-12-26 | 2015-07-02 | 주식회사 엘지화학 | 고성능 폴리아미드계 건식 수처리 분리막 및 그 제조방법 |
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US4769148A (en) * | 1987-11-18 | 1988-09-06 | The Dow Chemical Company | Novel polyamide reverse osmosis membranes |
SE522877C2 (sv) | 1998-11-17 | 2004-03-16 | Andritz Inc | Förfarande för drift av en kontinuerlig cellulosamassakokare och en kokare |
KR100474169B1 (ko) * | 2002-05-20 | 2005-03-08 | 주식회사 새 한 | 내오염성이 우수한 선택적 분리막 제조방법 |
JP2005095856A (ja) | 2003-06-18 | 2005-04-14 | Toray Ind Inc | 複合半透膜およびその製造方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100781625B1 (ko) * | 2006-12-11 | 2007-12-05 | 주식회사 새 한 | 내오염성 및 내구성이 우수한 폴리아마이드 역삼투분리막의제조방법 및 그로부터 제조된 역삼투분리막 |
KR20180081474A (ko) * | 2017-01-06 | 2018-07-16 | 한국화학연구원 | 붕소 제거능이 우수한 역삼투막 및 이의 제조방법 |
KR20190103667A (ko) | 2018-02-28 | 2019-09-05 | 한국화학연구원 | 나노 기공을 함유하는 멤브레인 및 이의 제조방법 |
WO2019209010A1 (ko) * | 2018-04-23 | 2019-10-31 | 고려대학교 산학협력단 | 방향족 탄화수소를 이용한 우수한 용질 제거 성능을 가진 분리막 제조 기술 |
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