JP7819170B2 - 複合半透膜の保存方法、保存液、及びスパイラル型膜エレメント - Google Patents

複合半透膜の保存方法、保存液、及びスパイラル型膜エレメント

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Publication number
JP7819170B2
JP7819170B2 JP2023194947A JP2023194947A JP7819170B2 JP 7819170 B2 JP7819170 B2 JP 7819170B2 JP 2023194947 A JP2023194947 A JP 2023194947A JP 2023194947 A JP2023194947 A JP 2023194947A JP 7819170 B2 JP7819170 B2 JP 7819170B2
Authority
JP
Japan
Prior art keywords
composite semipermeable
semipermeable membrane
membrane
monovalent
solution
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.)
Active
Application number
JP2023194947A
Other languages
English (en)
Japanese (ja)
Other versions
JP2024087774A (ja
JP2024087774A5 (https=
Inventor
友葉 岡▲崎▼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Denko Corp
Original Assignee
Nitto Denko Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nitto Denko Corp filed Critical Nitto Denko Corp
Publication of JP2024087774A publication Critical patent/JP2024087774A/ja
Publication of JP2024087774A5 publication Critical patent/JP2024087774A5/ja
Application granted granted Critical
Publication of JP7819170B2 publication Critical patent/JP7819170B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • B01D65/06—Membrane cleaning or sterilisation ; Membrane regeneration with special washing compositions
    • 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
    • B01D67/0095—Drying
    • 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
    • B01D61/10—Accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/10—Spiral-wound membrane modules
    • 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
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • 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
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/168—Use of other chemical agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/28—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling by soaking or impregnating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/15—Use of additives
    • B01D2323/218—Additive materials
    • B01D2323/2181—Inorganic additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/15—Use of additives
    • B01D2323/218—Additive materials
    • B01D2323/2182—Organic additives
    • B01D2323/21827—Salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/15—Use of additives
    • B01D2323/218—Additive materials
    • B01D2323/2182—Organic additives
    • B01D2323/21827—Salts
    • B01D2323/21828—Ammonium Salts
    • 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)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
JP2023194947A 2022-12-19 2023-11-16 複合半透膜の保存方法、保存液、及びスパイラル型膜エレメント Active JP7819170B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022201738 2022-12-19
JP2022201738 2022-12-19

Publications (3)

Publication Number Publication Date
JP2024087774A JP2024087774A (ja) 2024-07-01
JP2024087774A5 JP2024087774A5 (https=) 2025-09-01
JP7819170B2 true JP7819170B2 (ja) 2026-02-24

Family

ID=88975774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023194947A Active JP7819170B2 (ja) 2022-12-19 2023-11-16 複合半透膜の保存方法、保存液、及びスパイラル型膜エレメント

Country Status (4)

Country Link
US (1) US20240198292A1 (https=)
EP (1) EP4389266A1 (https=)
JP (1) JP7819170B2 (https=)
CN (1) CN118217815A (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005508275A (ja) 2001-10-05 2005-03-31 フィルムテック コーポレーション ピペラジン系膜用の包装アセンブリ
JP2006122886A (ja) 2004-10-01 2006-05-18 Nitto Denko Corp 複合半透膜及びその製造方法
JP2020142191A (ja) 2019-03-06 2020-09-10 旭化成株式会社 中空糸膜モジュール、及びこれを用いた海水のろ過方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5824303A (ja) 1981-08-03 1983-02-14 Teijin Ltd 耐酸化性複合半透膜
JPH01180208A (ja) 1988-01-11 1989-07-18 Toray Ind Inc 複合半透膜の製造方法およびその膜
JP3241855B2 (ja) * 1993-03-29 2001-12-25 旭化成株式会社 無機塩で目詰めされた多孔膜
JP3489922B2 (ja) 1994-12-22 2004-01-26 日東電工株式会社 高透過性複合逆浸透膜の製造方法
WO2011102124A1 (ja) 2010-02-16 2011-08-25 日東電工株式会社 複合分離膜およびこれを用いた分離膜エレメント

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005508275A (ja) 2001-10-05 2005-03-31 フィルムテック コーポレーション ピペラジン系膜用の包装アセンブリ
JP2006122886A (ja) 2004-10-01 2006-05-18 Nitto Denko Corp 複合半透膜及びその製造方法
JP2020142191A (ja) 2019-03-06 2020-09-10 旭化成株式会社 中空糸膜モジュール、及びこれを用いた海水のろ過方法

Also Published As

Publication number Publication date
US20240198292A1 (en) 2024-06-20
CN118217815A (zh) 2024-06-21
EP4389266A1 (en) 2024-06-26
JP2024087774A (ja) 2024-07-01

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