KR970005372A - 고 투과성 복합 역삼투막 - Google Patents
고 투과성 복합 역삼투막 Download PDFInfo
- Publication number
- KR970005372A KR970005372A KR1019960027265A KR19960027265A KR970005372A KR 970005372 A KR970005372 A KR 970005372A KR 1019960027265 A KR1019960027265 A KR 1019960027265A KR 19960027265 A KR19960027265 A KR 19960027265A KR 970005372 A KR970005372 A KR 970005372A
- Authority
- KR
- South Korea
- Prior art keywords
- reverse osmosis
- osmosis membrane
- composite reverse
- skin layer
- polyamide
- Prior art date
Links
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 18
- 239000012528 membrane Substances 0.000 title claims abstract 19
- 239000002131 composite material Substances 0.000 title claims abstract 17
- 230000035699 permeability Effects 0.000 title claims abstract 8
- 229920002647 polyamide Polymers 0.000 claims abstract 8
- 229920000620 organic polymer Polymers 0.000 claims abstract 7
- 239000002253 acid Substances 0.000 claims abstract 6
- 150000001875 compounds Chemical class 0.000 claims abstract 6
- 150000004820 halides Chemical class 0.000 claims abstract 6
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract 3
- 125000003277 amino group Chemical group 0.000 claims abstract 3
- 238000000034 method Methods 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims 2
- 150000001298 alcohols Chemical class 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 238000006482 condensation reaction Methods 0.000 claims 1
- 238000004132 cross linking Methods 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 150000002170 ethers Chemical class 0.000 claims 1
- 230000004907 flux Effects 0.000 claims 1
- 150000008282 halocarbons Chemical class 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 230000000977 initiatory effect Effects 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- 239000012466 permeate Substances 0.000 claims 1
- 125000001453 quaternary ammonium group Chemical group 0.000 claims 1
- 239000011780 sodium chloride Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract 2
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 238000011033 desalting Methods 0.000 abstract 1
- 230000007717 exclusion Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
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- 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
- 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
- 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
- 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
-
- 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
- B01D69/1214—Chemically bonded layers, e.g. cross-linking
-
- 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
-
- 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
-
- 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
- B01D2325/16—Membrane materials having positively charged functional groups
-
- 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
- B01D2325/34—Molecular weight or degree of polymerisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Manufacturing & Machinery (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
본 발명의 복합 역삼투막은 비표면적이 3∼1000인 폴리아미드계 스킨층을 갖고 있으며, 염저지율 및 수투과성이 우수하다. 본 발명의 복합 역삼투막은 다작용성 아미노 그룹을 갖는 화합물과 다작용성 산할로겐화물 그룹을 갖는 다작용성 산할로겐화물을 반응시켜서 얻은 음전하를 띤 가교폴리아미드계 스킨층과, 상기 스킨층을 지지하는 미다공성 지지체로 구성되며, 상기 스킨층의 비표면적이 3이상이다. 역삼투처리의 제1단계는 상기 복합 역삼투막을 사용하는 막모듈내에서 수행된다. 스킨층을 양전하를 띤 그룹을 갖는 유기 중합체, 예를 들면 폴리에틸렌이민 층으로 피복하여 또 하나의 막모듈로서 사용될 수 있다. 예를 들면, 상기 유기 중합체를 글루타르 알데히드로 가교시킨다. 표면상에 가교피복된 층은 저농도 영역에서의 무기염의 탈염성 및 양이온성 유기물의 배제성이 우수한 복합 역삼투막을 실현시킨다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제2실시예 및 제3실시예에 사용된 다단식 역삼투처리공정을 도시하는 도면
Claims (11)
- 2개 이상의 반응성 아미노 그룹을 갖는 화합물과 2개 이상의 반응성 산할로겐화물 그룹을 갖는 다작용성 산할로겐화물의 반응생성물로 이루어진 폴리아미드계 스킨층과, 상기 폴리아미드계 스킨층을 지지하는 미다공정 지지체로 구성되며, 상기 폴리아미드계 스킨층의 비표면적이 3∼1000인 것을 특징으로 하는 고 투과성 복합 역삼투막.
- 제1항에 있어서, 상기 폴리아미드계 스킨층의 표면은 양전하를 띤 그룹을 갖는 유기 종합체의 가교층으로 도포되어 있는 것을 특징으로 하는 고 투과성 복합 역삼투막.
- 제1항에 있어서, 상기 양전하를 띤 그룹을 갖는 유기 중합체의 가교층은 4급 암모늄 그룹 및 하이드록실 그룹을 갖는 유기 중합체를 분자내 또는 분자간에서 가교시킨 유기 중합체인 것을 특징으로 하는 고 투과성 복합 역삼투막.
- 제2항에 있어서, 상기 양전하를 띤 그룹을 갖는 유기 중합체의 가교층은 가교 폴리에틸렌이민인 것을 특징으로 하는 고 투과성 복합 역삼투막.
- 제2항에 있어서, 상기 폴리에틸렌이민의 평균 분자량은 300 이상인 것을 특징으로 하는 고 투과성 복합 역삼투막.
- 제2항에 있어서, 상기 양전하를 띤 그룹을 갖는 유기 중합체의 가교층의 두께는 1㎛∼10㎛인 것을 특징으로 하는 고 투과성 복합 역삼투막.
- 제2단이하로서 제2항의 고 투과성 복합 역삼투막으로 된 막모듈을 구비하는 것을 특징으로 하는 다단식 역삼투처리장치.
- 제1항에 있어서, 2개 이상의 반응성 아미노 그룹을 갖는 화합물과 2개 이상의 반응성 산할로겐화물 그룹을 갖는 다작용성 산할로겐화물로 이루어진 그룹 중에서 선택된 화합물을 함유하는 하나이상의 용액에 용해도 파라미터가 8∼14(cal/㎤)1/2인 화합물을 계면중축합반응개시전에 첨가하는 것을 특징으로 하는 고 투과성 복합 역삼투막.
- 제8항에 있어서, 상기 용해도 파라미터가 8∼14(cal/㎤)1/2인 화합물은 알콜, 에테르, 케톤, 에스테르, 할로겐화 탄화수소, 질소함유화합물 및 황함유화합물로 구성된 그룹 중에서 선택된 하나이상의 화합물인 것을 특징으로 하는 고 투과성 복합 역삼투막.
- 제1항에 있어서, 상기 폴리아미드계 스킨층의 비표면적은 3.1∼500인 것을 특징으로 하는 고 투과성 복합 역삼투막.
- 제1항에 있어서, 상기 복합 역삼투막의 투과유속은 염화나트륨 500ppm을 함유하는 pH 6.5의 수용액을 25℃에서 조작압력 7.5kgf/㎠으로 1시간동안 투과시킨 후에는 0.65m3/(㎡·일) 이상인 것을 특징으로 하는 고 투과성 복합 역삼투막.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7169707A JP3025629B2 (ja) | 1995-07-05 | 1995-07-05 | 高透過性複合逆浸透膜 |
JP95-169707 | 1995-07-05 | ||
JP95-177454 | 1995-07-13 | ||
JP17745495A JP3489913B2 (ja) | 1995-07-13 | 1995-07-13 | 高透過性複合逆浸透膜 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970005372A true KR970005372A (ko) | 1997-02-19 |
KR100424396B1 KR100424396B1 (ko) | 2004-06-30 |
Family
ID=26492965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960027265A KR100424396B1 (ko) | 1995-07-05 | 1996-07-05 | 고투과성 복합 역삼투막 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5989426A (ko) |
EP (1) | EP0752266A3 (ko) |
KR (1) | KR100424396B1 (ko) |
CN (1) | CN1091639C (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100322235B1 (ko) * | 2000-02-18 | 2002-02-07 | 김충섭 | 고 투과성 역삼투압 분리막의 제조방법 |
Families Citing this family (67)
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CN1213985A (zh) * | 1996-03-18 | 1999-04-14 | 日东电工株式会社 | 反渗透复合膜以及用它进行反渗透处理水的方法 |
US6413425B1 (en) * | 1997-04-10 | 2002-07-02 | Nitto Denko Corporation | Reverse osmosis composite membrane and reverse osmosis treatment method for water using the same |
CN1211151C (zh) * | 1997-07-02 | 2005-07-20 | 日东电工株式会社 | 复合反渗透膜及其制造方法 |
US6337018B1 (en) | 2000-04-17 | 2002-01-08 | The Dow Chemical Company | Composite membrane and method for making the same |
AU2003230592A1 (en) * | 2002-03-01 | 2003-09-16 | Osmonics, Inc. | A process for preparing semipermeable membranes having improved permeability |
US7490725B2 (en) * | 2003-10-09 | 2009-02-17 | Membrane Technology & Research | Reverse osmosis membrane and process |
US20060138043A1 (en) * | 2004-12-23 | 2006-06-29 | Kharul Ulhas K | Process for preparation of thin film composite membrane |
JP2008535648A (ja) | 2005-03-09 | 2008-09-04 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | ナノ複合膜ならびにそれを作製および使用する方法 |
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WO2007133362A1 (en) * | 2006-05-12 | 2007-11-22 | Dow Global Technologies Inc. | Modified membrane |
AU2007317516B2 (en) * | 2006-10-27 | 2013-04-04 | The Regents Of The University Of California | Micro-and nanocomposite support structures for reverse osmosis thin film membranes |
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CN102019146A (zh) * | 2010-08-10 | 2011-04-20 | 北京工业大学 | 一种基于共价作用组装多层复合分离膜的方法 |
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KR101920191B1 (ko) | 2011-01-24 | 2018-11-20 | 다우 글로벌 테크놀로지스 엘엘씨 | 복합 폴리아미드 막 |
CN103328081B (zh) | 2011-01-24 | 2015-08-19 | 陶氏环球技术有限责任公司 | 复合聚酰胺膜 |
DE102012202202A1 (de) * | 2011-02-16 | 2012-08-30 | Ksb Aktiengesellschaft | Verfahren und Anlage zur Aufbereitung einer Lösung |
JP6054968B2 (ja) | 2011-08-31 | 2016-12-27 | ダウ グローバル テクノロジーズ エルエルシー | アミン−反応性およびリン−含有官能基を含むモノマーから誘導された複合ポリアミド膜 |
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KR101487575B1 (ko) | 2011-10-06 | 2015-01-30 | 주식회사 엘지화학 | 내오염성이 우수한 역삼투 분리막 및 그 제조방법 |
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- 1996-07-02 US US08/677,322 patent/US5989426A/en not_active Expired - Lifetime
- 1996-07-04 EP EP96110848A patent/EP0752266A3/en not_active Ceased
- 1996-07-05 CN CN96110951A patent/CN1091639C/zh not_active Expired - Lifetime
- 1996-07-05 KR KR1019960027265A patent/KR100424396B1/ko not_active IP Right Cessation
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KR100322235B1 (ko) * | 2000-02-18 | 2002-02-07 | 김충섭 | 고 투과성 역삼투압 분리막의 제조방법 |
Also Published As
Publication number | Publication date |
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CN1091639C (zh) | 2002-10-02 |
CN1158274A (zh) | 1997-09-03 |
US5989426A (en) | 1999-11-23 |
EP0752266A3 (en) | 1997-08-27 |
EP0752266A2 (en) | 1997-01-08 |
KR100424396B1 (ko) | 2004-06-30 |
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