CA1141510A - Methods for preparing anisotropic membranes and membranes prepared therefrom - Google Patents
Methods for preparing anisotropic membranes and membranes prepared therefromInfo
- Publication number
- CA1141510A CA1141510A CA000348807A CA348807A CA1141510A CA 1141510 A CA1141510 A CA 1141510A CA 000348807 A CA000348807 A CA 000348807A CA 348807 A CA348807 A CA 348807A CA 1141510 A CA1141510 A CA 1141510A
- Authority
- CA
- Canada
- Prior art keywords
- hollow fiber
- polymer
- fiber membrane
- membrane
- liquid carrier
- 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.)
- Expired
Links
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- 238000000034 method Methods 0.000 title claims abstract description 124
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- 239000012510 hollow fiber Substances 0.000 claims abstract description 306
- 239000007788 liquid Substances 0.000 claims abstract description 236
- 239000002904 solvent Substances 0.000 claims abstract description 126
- 239000007789 gas Substances 0.000 claims abstract description 112
- 239000000701 coagulant Substances 0.000 claims abstract description 85
- 238000000926 separation method Methods 0.000 claims abstract description 70
- 229920002492 poly(sulfone) Polymers 0.000 claims abstract description 67
- 239000002243 precursor Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000001257 hydrogen Substances 0.000 claims abstract description 38
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 38
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 27
- 230000001413 cellular effect Effects 0.000 claims abstract description 10
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 10
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims abstract description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 179
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 21
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 17
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- 238000001125 extrusion Methods 0.000 claims description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
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- FEWLNYSYJNLUOO-UHFFFAOYSA-N 1-Piperidinecarboxaldehyde Chemical compound O=CN1CCCCC1 FEWLNYSYJNLUOO-UHFFFAOYSA-N 0.000 claims description 6
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- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 5
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- LCEDQNDDFOCWGG-UHFFFAOYSA-N morpholine-4-carbaldehyde Chemical compound O=CN1CCOCC1 LCEDQNDDFOCWGG-UHFFFAOYSA-N 0.000 claims 1
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 125000003118 aryl group Chemical group 0.000 description 9
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- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
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- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 6
- 239000000969 carrier Substances 0.000 description 6
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 6
- 229910052753 mercury Inorganic materials 0.000 description 6
- 125000002950 monocyclic group Chemical group 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 5
- 210000003850 cellular structure Anatomy 0.000 description 5
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- 238000004132 cross linking Methods 0.000 description 5
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 5
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- 239000000178 monomer Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 125000001424 substituent group Chemical group 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 238000000149 argon plasma sintering Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
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- 229910052751 metal Inorganic materials 0.000 description 4
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- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
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- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
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- 125000002252 acyl group Chemical group 0.000 description 3
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- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- GIEOVLYOTBHPBV-UHFFFAOYSA-N [Na].BrC=C.C=CC#N Chemical compound [Na].BrC=C.C=CC#N GIEOVLYOTBHPBV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
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- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
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- 235000019325 ethyl cellulose Nutrition 0.000 description 1
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- 229920001038 ethylene copolymer Polymers 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- PQPVPZTVJLXQAS-UHFFFAOYSA-N hydroxy-methyl-phenylsilicon Chemical compound C[Si](O)C1=CC=CC=C1 PQPVPZTVJLXQAS-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000012933 kinetic analysis Methods 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- JTHNLKXLWOXOQK-UHFFFAOYSA-N n-propyl vinyl ketone Natural products CCCC(=O)C=C JTHNLKXLWOXOQK-UHFFFAOYSA-N 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- FVZVCSNXTFCBQU-UHFFFAOYSA-N phosphanyl Chemical group [PH2] FVZVCSNXTFCBQU-UHFFFAOYSA-N 0.000 description 1
- 125000001476 phosphono group Chemical group [H]OP(*)(=O)O[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001603 poly (alkyl acrylates) Polymers 0.000 description 1
- 229920001484 poly(alkylene) Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920002480 polybenzimidazole Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001709 polysilazane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 150000004040 pyrrolidinones Chemical class 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 125000006413 ring segment Chemical group 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000001350 scanning transmission electron microscopy Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000001374 small-angle light scattering Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- HLCHESOMJVGDSJ-UHFFFAOYSA-N thiq Chemical compound C1=CC(Cl)=CC=C1CC(C(=O)N1CCC(CN2N=CN=C2)(CC1)C1CCCCC1)NC(=O)C1NCC2=CC=CC=C2C1 HLCHESOMJVGDSJ-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000004627 transmission electron microscopy Methods 0.000 description 1
- 125000004665 trialkylsilyl group Chemical group 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 125000006839 xylylene group Chemical group 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Classifications
-
- 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
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0011—Casting solutions therefor
-
- 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
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0016—Coagulation
-
- 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
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0016—Coagulation
- B01D67/00165—Composition of the coagulation baths
-
- 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
- B01D69/08—Hollow fibre 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
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
- C08J3/096—Nitrogen containing compounds
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
-
- 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
- B01D2325/34—Molecular weight or degree of polymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2381/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
- C08J2381/06—Polysulfones; Polyethersulfones
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2475479A | 1979-03-28 | 1979-03-28 | |
| US24,754 | 1979-03-28 | ||
| US11785180A | 1980-02-20 | 1980-02-20 | |
| US117,851 | 1980-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1141510A true CA1141510A (en) | 1983-02-22 |
Family
ID=26698833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000348807A Expired CA1141510A (en) | 1979-03-28 | 1980-03-27 | Methods for preparing anisotropic membranes and membranes prepared therefrom |
Country Status (20)
| Country | Link |
|---|---|
| AR (1) | AR220972A1 (da) |
| AU (1) | AU532082B2 (da) |
| BR (1) | BR8001873A (da) |
| CA (1) | CA1141510A (da) |
| DD (1) | DD150066A5 (da) |
| DE (1) | DE3011917A1 (da) |
| DK (1) | DK131780A (da) |
| ES (1) | ES8107038A1 (da) |
| FI (1) | FI800977A (da) |
| FR (1) | FR2452507A1 (da) |
| GB (2) | GB2100181B (da) |
| GR (1) | GR67255B (da) |
| IL (1) | IL59581A0 (da) |
| IT (1) | IT1131098B (da) |
| NL (1) | NL8001845A (da) |
| NO (1) | NO800893L (da) |
| PT (1) | PT71024A (da) |
| RO (1) | RO79464A (da) |
| SE (1) | SE8002388L (da) |
| YU (1) | YU86080A (da) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831204B2 (ja) * | 1980-03-10 | 1983-07-05 | 日東電工株式会社 | ポリスルホン半透膜 |
| CA1255860A (en) * | 1982-12-10 | 1989-06-20 | Katsuya Yamada | Selectively permeable asymetric membrane of aromatic polyester |
| JPS59189903A (ja) * | 1983-04-09 | 1984-10-27 | Kanegafuchi Chem Ind Co Ltd | 中空糸状フイルタ−およびその製法 |
| FR2593721B1 (fr) * | 1986-02-05 | 1988-05-20 | Rhone Poulenc Rech | Fibre creuse composite pour enlever de la vapeur d'eau a de l'air ou a du gaz carbonique |
| US4728346A (en) * | 1986-08-15 | 1988-03-01 | Permea Inc. | Permeation modified asymmetric gas separation membranes having graded density skins |
| EP0257012B1 (en) * | 1986-08-15 | 1992-10-07 | PERMEA, Inc. | Asymmetric gas separation membranes having graded density skins |
| US4871494A (en) * | 1986-08-15 | 1989-10-03 | Permea, Inc. | Process for forming asymmetric gas separation membranes having graded density skins |
| US4900626A (en) * | 1987-07-28 | 1990-02-13 | Rhone-Poulenc Recherches | Hollow composite fibers selectively permeable to water vapor |
| US4843733A (en) * | 1988-05-10 | 1989-07-04 | The Dow Chemical Company | Process for drying water-wet polycarbonate membranes |
| DE3829752A1 (de) * | 1988-09-01 | 1990-03-22 | Akzo Gmbh | Integrale asymmetrische polyaethersulfonmembran, verfahren zur herstellung und verwendung zur ultrafiltration und mikrofiltration |
| US4900334A (en) * | 1988-11-09 | 1990-02-13 | The Dow Chemical Company | Process for treating a liquid-wet polycarbonate membrane to improve its gas separation properties |
| GB8916441D0 (en) * | 1989-07-19 | 1989-09-06 | Ici Plc | Membranes |
| US4959082A (en) * | 1989-07-20 | 1990-09-25 | The Dow Chemical Company | Polycarbonate gas separation membranes containing substituted benzenes and processes for making and using the same |
| CA2020511A1 (en) * | 1989-09-05 | 1991-03-06 | Francis X. Mueller, Jr. | Gas separation membrane and process |
| US5009678A (en) * | 1989-10-31 | 1991-04-23 | Union Carbide Industrial Gases Technology Corporation | Process for recovery of ammonia from an ammonia-containing gas mixture |
| JP3232117B2 (ja) * | 1991-11-19 | 2001-11-26 | 鐘淵化学工業株式会社 | ポリスルホン多孔質中空糸 |
| US5788862A (en) * | 1992-05-13 | 1998-08-04 | Pall Corporation | Filtration medium |
| US5480554A (en) * | 1992-05-13 | 1996-01-02 | Pall Corporation | Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same |
| CN109312151B (zh) | 2016-06-23 | 2021-08-24 | 杜邦安全与建设公司 | 聚砜在n-酰基吗啉中的溶液在制备uf膜中的用途 |
| CN110342910B (zh) * | 2019-08-21 | 2021-08-31 | 中国石油化工股份有限公司 | 由fcc废催化剂制备陶瓷中空纤维膜的方法及陶瓷中空纤维膜 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2404719A (en) * | 1942-06-17 | 1946-07-23 | Du Pont | Acrylonitrile polymer solutions |
| FR1586563A (da) * | 1968-10-29 | 1970-02-20 | ||
| US3775361A (en) * | 1971-10-21 | 1973-11-27 | Du Pont | Preparation of stable concentrated solutions of aromatic nitrogen-linked condensation polymers |
| US4127625A (en) * | 1975-03-27 | 1978-11-28 | Daicel Ltd. | Process for preparing hollow fiber having selective gas permeability |
| ZA762209B (en) * | 1975-04-23 | 1977-04-27 | Envirogenics Syst | Gas separation membrane |
| FR2410501A1 (fr) * | 1976-11-15 | 1979-06-29 | Monsanto Co | Membranes a composants multiples pour des separations de gaz |
-
1980
- 1980-03-11 IL IL59581A patent/IL59581A0/xx unknown
- 1980-03-25 ES ES489884A patent/ES8107038A1/es not_active Expired
- 1980-03-26 AR AR280443A patent/AR220972A1/es active
- 1980-03-27 AU AU56891/80A patent/AU532082B2/en not_active Ceased
- 1980-03-27 GB GB8218393A patent/GB2100181B/en not_active Expired
- 1980-03-27 BR BR8001873A patent/BR8001873A/pt unknown
- 1980-03-27 CA CA000348807A patent/CA1141510A/en not_active Expired
- 1980-03-27 RO RO80100644A patent/RO79464A/ro unknown
- 1980-03-27 NO NO800893A patent/NO800893L/no unknown
- 1980-03-27 IT IT20971/80A patent/IT1131098B/it active
- 1980-03-27 YU YU00860/80A patent/YU86080A/xx unknown
- 1980-03-27 DK DK131780A patent/DK131780A/da unknown
- 1980-03-27 FR FR8006858A patent/FR2452507A1/fr not_active Withdrawn
- 1980-03-27 GB GB8010315A patent/GB2047162B/en not_active Expired
- 1980-03-27 SE SE8002388A patent/SE8002388L/xx not_active Application Discontinuation
- 1980-03-27 PT PT71024A patent/PT71024A/pt unknown
- 1980-03-27 GR GR61547A patent/GR67255B/el unknown
- 1980-03-27 DE DE19803011917 patent/DE3011917A1/de not_active Ceased
- 1980-03-27 DD DD80219976A patent/DD150066A5/de unknown
- 1980-03-28 FI FI800977A patent/FI800977A/fi not_active Application Discontinuation
- 1980-03-28 NL NL8001845A patent/NL8001845A/nl not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| IL59581A0 (en) | 1980-06-30 |
| RO79464A (ro) | 1982-07-06 |
| DE3011917A1 (de) | 1980-10-02 |
| ES489884A0 (es) | 1981-10-01 |
| FI800977A (fi) | 1980-09-29 |
| AR220972A1 (es) | 1980-12-15 |
| SE8002388L (sv) | 1980-09-29 |
| ES8107038A1 (es) | 1981-10-01 |
| GB2100181A (en) | 1982-12-22 |
| DK131780A (da) | 1980-09-29 |
| FR2452507A1 (fr) | 1980-10-24 |
| GB2047162A (en) | 1980-11-26 |
| GR67255B (da) | 1981-06-26 |
| IT1131098B (it) | 1986-06-18 |
| GB2100181B (en) | 1983-11-02 |
| PT71024A (en) | 1980-04-01 |
| IT8020971A0 (it) | 1980-03-27 |
| DD150066A5 (de) | 1981-08-12 |
| BR8001873A (pt) | 1980-11-25 |
| GB2047162B (en) | 1983-02-02 |
| AU532082B2 (en) | 1983-09-15 |
| NL8001845A (nl) | 1980-09-30 |
| AU5689180A (en) | 1980-10-02 |
| YU86080A (en) | 1983-02-28 |
| NO800893L (no) | 1980-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20000222 |