NL2032535A - Composite nanofiltration membrane as well as preparation method and application thereof - Google Patents

Composite nanofiltration membrane as well as preparation method and application thereof Download PDF

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Publication number
NL2032535A
NL2032535A NL2032535A NL2032535A NL2032535A NL 2032535 A NL2032535 A NL 2032535A NL 2032535 A NL2032535 A NL 2032535A NL 2032535 A NL2032535 A NL 2032535A NL 2032535 A NL2032535 A NL 2032535A
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membrane
phase solution
composite nanofiltration
nanofiltration membrane
present
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NL2032535A
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English (en)
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NL2032535B1 (en
Inventor
Han Fei
Gui Shuanglin
Wang Yiwen
Xiong Jihai
Fan Min
Jiang Qinliang
Lou Jianquan
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Institute Of Energy Res Jiangxi Academy Of Sciences
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    • 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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/60—Polyamines
    • 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
    • B01D67/0079—Manufacture of membranes comprising organic and inorganic components
    • B01D67/00793—Dispersing a component, e.g. as particles or powder, in another component
    • 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
    • B01D67/0079—Manufacture of membranes comprising organic and inorganic components
    • 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
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • 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
    • 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
    • B01D69/108—Inorganic support material
    • 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
    • B01D69/125—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
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • B01D69/148—Organic/inorganic mixed matrix 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
    • 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
    • C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
    • 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
    • B01D2323/50—Control of the membrane preparation process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B01D2325/023—Dense layer within the membrane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/36—Hydrophilic membranes
    • 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
    • B01D61/027—Nanofiltration
    • 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
    • B01D71/02—Inorganic material
    • B01D71/024—Oxides
    • 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
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68—Polysulfones; Polyethersulfones
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
    • 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

Claims (10)

CONCLUSIES
1. Composiet nanofiltratiemembraan, omvattende een substraatlaag, een basismembraanlaag en een scheidingslaag van polyamide die ach- tereenvolgens zijn gestapeld, waarbij de basismembraanlaag omvat een polysulfonmembraan en molybdeen- disulfideoxide gedispergeerd in de polysulfonmembraan; de scheidingslaag van polyamide wordt bereid uit een oplossing in de waterfase en een oplossing in de oliefase door een in-situ grensvlakpolymerisatiereactie; de waterfase-oplossing bevat pi- perazine en de oliefase-oplossing bevat trimesoylchloride.
2. Composiet nanofiltratiemembraan volgens conclusie 1, waarbij de waterfase-oplossing de volgende componenten omvat op basis van ge- wichtspercentages: piperazine 1 tot 2%; pH-regelaar 1,5 tot 3,0%; natriumdodecylsulfonaat 0,58 tot 0,623; water Resterende hoeveelheid; de oliefase-oplossing is een n-hexaanoplossing van trimesoylchlo- ride en een massa-tot-concentratie verhouding van het trimesoyl- chloride tot het n-hexaan is (0,1 tot 0,5) g:1/100 ml.
3. Composiet nanofiltratiemembraan volgens conclusie 1, waarbij een deeltjesdiameter van het molybdeendisulfideoxide 10 tot 2.000 nm is, en een watercontacthoek van het molybdeendisulfideoxide 20 tot 45° is.
4. Werkwijze voor het vervaardigen van de composiet nanofiltratie- membraan volgens een van de conclusies 1 tot 3, omvattende de vol- gende stappen: het mengen van organisch oplosmiddel, organisch porievormend mid- del, molybdeendisulfideoxide en polysulfon om een gietoplossing te verkrijgen; na het ontschuimen van de gietoplossing, het vormen van een mem- braan op het oppervlak van de substraatlaag, het vervolgens onder-
dompelen van de membraan om een basismembraanlaag te verkrijgen om een primair composiet nanofiltratiemembraan te verkrijgen; en het achtereenvolgens onderdompelen van de primaire composiet nano- filtratiemembraan in een waterfase-oplossing en een oliefase- oplossing, het uitvoeren van een in-situ grensvlakpolymerisatiere- actie om een composiet nanofiltratiemembraan te verkrijgen; waar- bij de waterfase-oplossing piperazine bevat en de oliefase- oplossing trimesoylchloride bevat.
5. Werkwijze voor het vervaardigen volgens conclusie 4, waarbij het ontschuimen verwijst naar het laten staan bij een constante temperatuur onder vacuüm, een temperatuur van het ontschuimen 25 tot 70 °C is, een vacuümgraad 0,3 tot 0,8 MPa is en een tijd van de ontschuiming 1 tot 8 uur is.
6. Werkwijze voor het vervaardigen volgens conclusie 4, waarbij de membraanvorming membraangieten, luchtbaden en coagulatiebaden om- vat; een snelheid van het membraangieten 2 tot 5 m/min is, en een dikte van het membraanafgietsel 50 tot 200 pm is; een temperatuur van het luchtbad 25 tot 80 °C is, en een tijd 10 tot 240 s is; en een temperatuur van het coagulatiebad 15 tot 40 °C is, en een tijd 4 tot 48 uur is.
7. Werkwijze voor het vervaardigen volgens conclusie 4, waarbij een onderdompelingstijd in de waterfase-oplossing 10 tot 30 s is en een onderdompelingstijd in de oliefase-oplossing 10 tot 30 s is; en een temperatuur van de in-situ grensvlakpolymerisatiereactie 50 tot 70 °C is, en een tijd 1 tot 5 min is.
8. Werkwijze voor het vervaardigen volgens conclusie 4, waarbij het organische oplosmiddel een of meer van N,N-dimethylformamide, N,N-dimethylaceetamide en N-methylpyrrolidon omvat.
9. Werkwijze voor het vervaardigen volgens conclusie 4, waarbij het organische poriënvormende middel een of meer van polyethyleen-
glycol, glycerine, propyleenglycol en aceton omvat.
10. Toepassing van de composiet nanofiltratiemembraan volgens een van de conclusies 1 tot 3 of de composiet nanofiltratiemembraan bereid en verkregen door de werkwijze voor het vervaardigen vol- gens een van de conclusies 4 tot 9 bij waterbehandeling, kleur- stofconcentratie of zeewaterontzilting.
NL2032535A 2021-08-05 2022-07-18 Composite nanofiltration membrane as well as preparation method and application thereof NL2032535B1 (en)

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CN113441020B (zh) 2022-11-01
CN113441020A (zh) 2021-09-28

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