JP7086069B2 - 水処理用多孔質膜 - Google Patents
水処理用多孔質膜 Download PDFInfo
- Publication number
- JP7086069B2 JP7086069B2 JP2019525284A JP2019525284A JP7086069B2 JP 7086069 B2 JP7086069 B2 JP 7086069B2 JP 2019525284 A JP2019525284 A JP 2019525284A JP 2019525284 A JP2019525284 A JP 2019525284A JP 7086069 B2 JP7086069 B2 JP 7086069B2
- Authority
- JP
- Japan
- Prior art keywords
- mass
- parts
- less
- structural units
- porous membrane
- 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
Links
- 239000012528 membrane Substances 0.000 title claims description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 51
- 239000000178 monomer Substances 0.000 claims description 80
- 229920002554 vinyl polymer Polymers 0.000 claims description 57
- 229920002821 Modacrylic Polymers 0.000 claims description 55
- -1 vinyl halide Chemical class 0.000 claims description 45
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 40
- 125000001424 substituent group Chemical group 0.000 claims description 34
- 229910052736 halogen Inorganic materials 0.000 claims description 31
- 150000002367 halogens Chemical class 0.000 claims description 31
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 30
- 230000004907 flux Effects 0.000 claims description 30
- 238000011084 recovery Methods 0.000 claims description 30
- 239000007864 aqueous solution Substances 0.000 claims description 22
- 239000000243 solution Substances 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 20
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 13
- 239000004021 humic acid Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 11
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 10
- 230000005764 inhibitory process Effects 0.000 claims description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims description 3
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 claims 1
- 230000001112 coagulating effect Effects 0.000 claims 1
- 239000000470 constituent Substances 0.000 description 23
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 22
- 238000000034 method Methods 0.000 description 21
- 239000005708 Sodium hypochlorite Substances 0.000 description 20
- 230000035699 permeability Effects 0.000 description 20
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 20
- 230000014759 maintenance of location Effects 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 12
- 229920001577 copolymer Polymers 0.000 description 11
- 150000002500 ions Chemical class 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 10
- 229910021642 ultra pure water Inorganic materials 0.000 description 10
- 239000012498 ultrapure water Substances 0.000 description 10
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 8
- 238000007654 immersion Methods 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- 229920002239 polyacrylonitrile Polymers 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 229920000915 polyvinyl chloride Polymers 0.000 description 6
- 239000004800 polyvinyl chloride Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000012046 mixed solvent Substances 0.000 description 4
- 238000005191 phase separation Methods 0.000 description 4
- 229920001223 polyethylene glycol Polymers 0.000 description 4
- 229940113115 polyethylene glycol 200 Drugs 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000008235 industrial water Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 125000002843 carboxylic acid group Chemical group 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 125000004663 dialkyl amino group Chemical group 0.000 description 2
- 238000010556 emulsion polymerization method Methods 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 229920001477 hydrophilic polymer Polymers 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005374 membrane filtration Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- VFRMAHVDXYSEON-UHFFFAOYSA-N 1,1-diiodoethene Chemical compound IC(I)=C VFRMAHVDXYSEON-UHFFFAOYSA-N 0.000 description 1
- DZSVIVLGBJKQAP-UHFFFAOYSA-N 1-(2-methyl-5-propan-2-ylcyclohex-2-en-1-yl)propan-1-one Chemical compound CCC(=O)C1CC(C(C)C)CC=C1C DZSVIVLGBJKQAP-UHFFFAOYSA-N 0.000 description 1
- XQBHAZDVLGNSOJ-UHFFFAOYSA-N 1-(4-ethenylphenyl)-n,n-dimethylmethanamine Chemical compound CN(C)CC1=CC=C(C=C)C=C1 XQBHAZDVLGNSOJ-UHFFFAOYSA-N 0.000 description 1
- OSSNTDFYBPYIEC-UHFFFAOYSA-N 1-ethenylimidazole Chemical compound C=CN1C=CN=C1 OSSNTDFYBPYIEC-UHFFFAOYSA-N 0.000 description 1
- SXZSFWHOSHAKMN-UHFFFAOYSA-N 2,3,4,4',5-Pentachlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC(Cl)=C(Cl)C(Cl)=C1Cl SXZSFWHOSHAKMN-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- YQXIXKGXDPJENR-UHFFFAOYSA-N 3-methylbut-2-en-2-amine Chemical compound CC(C)=C(C)N YQXIXKGXDPJENR-UHFFFAOYSA-N 0.000 description 1
- KFDVPJUYSDEJTH-UHFFFAOYSA-N 4-ethenylpyridine Chemical compound C=CC1=CC=NC=C1 KFDVPJUYSDEJTH-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000005956 Cosmos caudatus Nutrition 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- MZVQCMJNVPIDEA-UHFFFAOYSA-N [CH2]CN(CC)CC Chemical group [CH2]CN(CC)CC MZVQCMJNVPIDEA-UHFFFAOYSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229940063013 borate ion Drugs 0.000 description 1
- 229940006460 bromide ion Drugs 0.000 description 1
- INLLPKCGLOXCIV-UHFFFAOYSA-N bromoethene Chemical compound BrC=C INLLPKCGLOXCIV-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-M chlorite Chemical compound [O-]Cl=O QBWCMBCROVPCKQ-UHFFFAOYSA-M 0.000 description 1
- 229940005993 chlorite ion Drugs 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- IOMDIVZAGXCCAC-UHFFFAOYSA-M diethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](CC)(CC)CC=C IOMDIVZAGXCCAC-UHFFFAOYSA-M 0.000 description 1
- 125000006202 diisopropylaminoethyl group Chemical group [H]C([H])([H])C([H])(N(C([H])([H])C([H])([H])*)C([H])(C([H])([H])[H])C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 description 1
- 125000004914 dipropylamino group Chemical group C(CC)N(CCC)* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- PYGSKMBEVAICCR-UHFFFAOYSA-N hexa-1,5-diene Chemical group C=CCCC=C PYGSKMBEVAICCR-UHFFFAOYSA-N 0.000 description 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- GHXZPUGJZVBLGC-UHFFFAOYSA-N iodoethene Chemical compound IC=C GHXZPUGJZVBLGC-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- SDYRIBONPHEWCT-UHFFFAOYSA-N n,n-dimethyl-2-phenylethenamine Chemical compound CN(C)C=CC1=CC=CC=C1 SDYRIBONPHEWCT-UHFFFAOYSA-N 0.000 description 1
- 125000005496 phosphonium group Chemical group 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920001992 poloxamer 407 Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium group Chemical group [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- ZMANZCXQSJIPKH-UHFFFAOYSA-O triethylammonium ion Chemical compound CC[NH+](CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-O 0.000 description 1
- ZTWTYVWXUKTLCP-UHFFFAOYSA-N vinylphosphonic acid Chemical compound OP(O)(=O)C=C ZTWTYVWXUKTLCP-UHFFFAOYSA-N 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
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
- B01D71/421—Polyacrylonitrile
-
- 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
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
-
- 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
-
- 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
- B01D67/0011—Casting solutions therefor
- B01D67/00111—Polymer pretreatment in the casting solutions
-
- 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
- B01D67/0093—Chemical modification
-
- 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
- B01D71/30—Polyalkenyl halides
- B01D71/301—Polyvinylchloride
-
- 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
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/401—Polymers based on the polymerisation of acrylic acid, e.g. polyacrylate
-
- 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
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/42—Nitriles
- C08F220/44—Acrylonitrile
-
- 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
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/0283—Pore size
-
- 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
- B01D2325/00—Details relating to properties of membranes
- B01D2325/48—Antimicrobial properties
-
- 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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
- B01D61/146—Ultrafiltration comprising multiple ultrafiltration steps
-
- 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
- B01D71/30—Polyalkenyl halides
-
- 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
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
-
- 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
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
- B01D71/82—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
-
- 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
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/046—Elimination of a polymeric phase
-
- 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
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/052—Inducing phase separation by thermal treatment, e.g. cooling a solution
-
- 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
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/18—Homopolymers or copolymers of nitriles
- C08J2333/20—Homopolymers or copolymers of acrylonitrile
-
- 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
- C08J2439/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Derivatives of such polymers
- C08J2439/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
- C08J2439/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
-
- 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
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/02—Polyalkylene oxides
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Description
流束回復率(%)=J2/J1×100
フミン酸に対する阻止率(%)=100-C2/C1×100
透水性能(L/m2・atm・h)=V/(A×P×Δt)
流束回復率保持率(%)=R2/R1×100
接触角保持率(%)=A2/A1×100
塩化ビニルモノマー由来の構成単位49.0質量部と、アクリロニトリル由来の構成単位51.0質量部からなるモダクリル系共重合体を乳化重合法により製造した。得られたモダクリル系共重合体を15gと、開孔剤としてポリエチレングリコール200を40gとを、45gのジメチルスルホキシドに溶解させ、モダクリル系共重合体溶液を得た。得られたモダクリル系共重合体溶液をフィルムアプリケータを用いてガラス板上に塗布した後、60質量%のジメチルスルホキシド水溶液に展開して多孔質膜(厚み124μm)を得た。
モダクリル系共重合体として、乳化重合法により製造した塩化ビニルモノマー由来の構成単位49.0質量部と、アクリロニトリル由来の構成単位50.5質量部と、スチレンスルホン酸ナトリウム由来の構成単位0.5質量部からなるモダクリル系共重合体を用いた。該モダクリル系共重合体を15gと、開孔剤としてポリエチレングリコール200を40gとを、45gのジメチルスルホキシドに溶解させ、モダクリル系共重合体溶液を得た。得られたモダクリル系共重合体溶液をフィルムアプリケータを用いてガラス板上に塗布した後、60質量%のジメチルスルホキシド水溶液に展開して多孔質膜(厚み119μm)を作製した。
塩化ビニルモノマー由来の構成単位47.0質量部と、アクリロニトリル由来の構成単位51.0質量部と、スチレンスルホン酸ナトリウム由来の構成単位2.0質量部からなるモダクリル系共重合体を乳化重合法により製造した。得られたモダクリル系共重合体を13gと、開孔剤としてポリエチレングリコール200を41gとを、46gのジメチルスルホキシドに溶解させ、モダクリル系共重合体溶液を得た。得られたモダクリル系共重合体溶液をフィルムアプリケータを用いてガラス板上に塗布した後、60質量%のジメチルスルホキシド水溶液に展開して多孔質膜(厚み114μm)を得た。
ポリアクリロニトリル(アクリロニトリルの単独重合体、シグマアルドリッチ社製、重量平均分子量150,000)15gを85gのジメチルスルホキシドに溶解させ、ポリアクリロニトリル溶液を得た。得られたポリアクリロニトリル溶液をフィルムアプリケータを用いてガラス板上に塗布した後、60質量%のジメチルスルホキシド水溶液に展開して多孔質膜(厚み163μm)を得た。
ポリ塩化ビニル(塩化ビニルモノマーの単独重合体、重量平均分子量55,000)15gと、開孔剤としてポリエチレングリコール200を10gとを、75gのテトラヒドロフランに溶解させ、ポリ塩化ビニル溶液を得た。得られたポリ塩化ビニル溶液をフィルムアプリケータを用いてガラス板上に塗布した後、60質量%のテトラヒドロフラン水溶液に展開して多孔質膜(厚み85μm)を得た。
比較例1で用いたポリアクリロニトリルと同じポリアクリロニトリル3.9gと、親水性ポリマーとしてPluronic F-127(コスモ・バイオ社製)0.4gとを、25.7gのジメチルアセトアミドに溶解させた。得られたポリマー溶液をフィルムアプリケータにて不織布上にキャストした後、凝固槽(イオン交換水、約20℃)中に浸漬して、多孔質膜(厚み200μm)を得た。
比較例2で用いたポリ塩化ビニルと同じポリ塩化ビニル3.9gと、親水性ポリマーとしてメタクリロイルオキシエチルホスフォリルコリン‐(ポリプロピレングリコール)メタクリレート共重合体(methacryloyloxyethylphosphorylcholine-co-poly(propylene glycol) methacrylate)0.4gとを、25.7gのジメチルアセトアミドに溶解させた。得られたポリマー溶液をフィルムアプリケータにて不織布上にキャストした後、凝固槽(イオン交換水、約20℃)中に浸漬して、多孔質膜(厚み200μm)を得た。
湿潤状態の多孔質膜を、オートグラフ(島津製作所社製、型番AGS-J)を用いて、0.5mm/分の速度で引張り、破断時の引張強度を測定し、湿潤状態の膜強度とした。
分画分子量は、以下の方法で求めた阻止率が90%以上となる分子量である。阻止率は、膜の有効面積が8.04cm2の平膜用クロスフローモジュールを使用して測定した。重量平均分子量8,000のポリエチレングリコール(MPバイオケミカルズ社)、重量平均分子量20,000のポリエチレングリコール(シグマアルドリッチ社製)、重量平均分子量がそれぞれ100,000、200,000、400,000、1,000,000のポリエチレンオキサイド(シグマアルドリッチ社製)を指標分子として使用した。各指標分子をイオン交換水に200ppm溶解した溶液を水圧0.1MPa、流速150mL/分で流し、多孔質膜によりろ過された前後の指標分子濃度から下記式に従い阻止率を求めた。下記式で、Cpはろ過後の指標分子濃度であり、Cfはろ過前の指標分子濃度である。
阻止率(%)=(1-Cp/Cf)×100
膜の有効面積が23cm2の平膜用クロスフローモジュールを使用し、水圧を0.1MPa(1atm)とした超純水を流し、透水性能を下記式に基づいて算出した。下記式において、V(L)は膜を透過した超純水の体積を示し、A(m2)は膜の有効面積を示し、P(atm)は水圧を示し、Δt(h)は測定時間を示す。
透水性能(L/m2・atm・h)=V/(A×P×Δt)
1000ppmのフミン酸ナトリウムの水溶液(シグマアルドリッチ社製、試薬特級)を200L/m2・hの初期流束J1で1時間通水した後、逆洗した後の流束J2(L/m2・h)を測定し、下記式に基づいて算出した。
流束回復率(%)=J2/J1×100
上記流速回復率を測定する際に用いた1000ppmのフミン酸ナトリウム水溶液の初期フミン酸濃度C1と、多孔質膜を透過した後の処理水中のフミン酸濃度C2を用いて下記式に基づいて算出した。
阻止率(%)=100-(C2/C1×100)
多孔質膜を次亜塩素酸ナトリウム水溶液(690ppm、pH11)に所定の期間浸漬後、超純水で十分に洗浄し、乾燥した膜について上述した方法で流束回復率を測定した。次亜塩素酸ナトリウム水溶液浸漬前の多孔質膜の流束回復率をR1とし、次亜塩素酸ナトリウム水溶液浸漬後の多孔質膜の流束回復率をR2として下記式に基づいて流束回復率保持率を算出した。
流束回復率保持率(%)=R2/R1×100
多孔質膜を次亜塩素酸ナトリウム水溶液(690ppm、pH11)に所定の期間浸漬後、超純水で十分に洗浄し、乾燥した膜について接触角を、接触角測定装置(Drop Master 300、協和界面科学株式会社製)にて測定した。膜を適当なサイズに切り出し、超純水で満たしたガラスセル中に浸した。その後、Jの字の形をした注射針で5μLの空気の泡を作り、膜の表面に下部から乗せた。膜/水界面と、水/空気界面によって形成される角度を接触角とした。誤差をなくすため、ランダムに選んだ膜の10箇所について同一の測定を繰り返し、平均値を接触角とした。次亜塩素酸ナトリウム水溶液浸漬前の多孔質膜の接触角をA1とし、次亜塩素酸ナトリウム水溶液浸漬後の多孔質膜の接触角をA2として、下記式に基づいて接触角保持率を算出した。
接触角保持率(%)=A2/A1×100
Claims (10)
- モダクリル系共重合体で構成されており、
前記モダクリル系共重合体は、モダクリル系共重合体を構成する全構成単位を100質量部とした場合、アクリロニトリル由来の構成単位を30質量部以上60質量部以下、ハロゲン化ビニル及びハロゲン化ビニリデンからなる群から選ばれる一つ以上のハロゲン含有モノマー由来の構成単位を30質量部以上69.5質量部以下、並びにイオン性置換基を有するビニルモノマー由来の構成単位を0.5質量部以上10質量部以下含むことを特徴とする多孔質膜。 - 前記モダクリル系共重合体は、モダクリル系共重合体を構成する全構成単位を100質量部とした場合、アクリロニトリル由来の構成単位を30質量部以上60質量部以下、ハロゲン化ビニル及びハロゲン化ビニリデンからなる群から選ばれる一つ以上のハロゲン含有モノマー由来の構成単位を30質量部以上69.5質量部以下、並びにイオン性置換基を有するビニルモノマー由来の構成単位を0.5質量部以上5質量部以下含む請求項1に記載の多孔質膜。
- 前記モダクリル系共重合体は、モダクリル系共重合体を構成する全構成単位を100質量部とした場合、アクリロニトリル由来の構成単位を30質量部以上60質量部以下、ハロゲン化ビニル及びハロゲン化ビニリデンからなる群から選ばれる一つ以上のハロゲン含有モノマー由来の構成単位を30質量部以上69.5質量部以下、並びにイオン性置換基を有するビニルモノマー由来の構成単位を0.5質量部以上2質量部以下含む請求項1又は2に記載の多孔質膜。
- 前記イオン性置換基を有するビニルモノマー中のイオン性置換基は強電解型のアニオン性置換基である請求項1~3のいずれか1項に記載の多孔質膜。
- 前記イオン性置換基を有するビニルモノマー中のイオン性置換基はスルホン酸基である請求項1~4のいずれか1項に記載の多孔質膜。
- 前記ハロゲン含有モノマーは、塩化ビニル及び塩化ビニリデンからなる群から選ばれる一つ以上である請求項1~5のいずれか1項に記載の多孔質膜。
- 前記多孔質膜は、中空糸状、平膜状、スパイラル状、プリーツ状及びチューブラー状からなる群から選ばれる一つの形状である請求項1~6のいずれか1項に記載の多孔質膜。
- 前記多孔質膜は、1000ppmのフミン酸ナトリウム水溶液の初期フミン酸濃度C 1 と、多孔質膜を透過した後の処理水中のフミン酸濃度C 2 を用いて下記式に基づいて算出したフミン酸に対する阻止率が80%以上である請求項1~7のいずれかに記載の多孔質膜。
フミン酸に対する阻止率(%)=100-C 2 /C 1 ×100 - 前記多孔質膜は、1000ppmのフミン酸ナトリウムの水溶液を200L/m 2 ・hの初期流束J 1 で1時間通水した後、逆洗した際の流束J 2 (L/m 2 ・h)を測定し、下記式に基づいて算出した流束回復率が85%以上である請求項1~8のいずれかに記載の多孔質膜。
流束回復率(%)=J 2 /J 1 ×100 - 請求項1~9のいずれか1項に記載の多孔質膜の製造方法であって、
モダクリル系共重合体を良溶媒に溶解したモダクリル系共重合体溶液を、モダクリル系共重合体の非溶媒に接触させて凝固させることで、多孔質膜を得ており、
前記モダクリル系共重合体は、モダクリル系共重合体を構成する全構成単位を100質量部とした場合、アクリロニトリル由来の構成単位を30質量部以上60質量部以下、ハロゲン化ビニル及びハロゲン化ビニリデンからなる群から選ばれる一つ以上のハロゲン含有モノマー由来の構成単位を30質量部以上69.5質量部以下、並びにイオン性置換基を有するビニルモノマー由来の構成単位を0.5質量部以上10質量部以下含むことを特徴とする多孔質膜の製造方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017118017 | 2017-06-15 | ||
JP2017118017 | 2017-06-15 | ||
JP2017153496 | 2017-08-08 | ||
JP2017153496 | 2017-08-08 | ||
PCT/JP2018/020565 WO2018230330A1 (ja) | 2017-06-15 | 2018-05-29 | 水処理用多孔質膜 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2018230330A1 JPWO2018230330A1 (ja) | 2020-04-16 |
JP7086069B2 true JP7086069B2 (ja) | 2022-06-17 |
Family
ID=64658701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019525284A Active JP7086069B2 (ja) | 2017-06-15 | 2018-05-29 | 水処理用多孔質膜 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11224844B2 (ja) |
EP (1) | EP3639913A4 (ja) |
JP (1) | JP7086069B2 (ja) |
CN (1) | CN110709156A (ja) |
WO (1) | WO2018230330A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113024743B (zh) * | 2021-03-08 | 2023-05-16 | 青海洁神环境科技股份有限公司 | 一种双组份生物转盘用pvdc乳胶 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000024475A (ja) | 1998-07-13 | 2000-01-25 | Asahi Chem Ind Co Ltd | 熱処理方法 |
JP2004256936A (ja) | 2003-02-25 | 2004-09-16 | Kanebo Ltd | 高難燃性アクリル系繊維の製造法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1238180A (ja) * | 1967-09-21 | 1971-07-07 | ||
US3615024A (en) * | 1968-08-26 | 1971-10-26 | Amicon Corp | High flow membrane |
US3750735A (en) | 1970-06-16 | 1973-08-07 | Monsanto Co | Removal of water from liquid mixtures containing formaldehyde using a porous polymeric membrane |
US3950247A (en) | 1970-06-16 | 1976-04-13 | Monsanto Company | Separation procedure |
US4199445A (en) | 1970-06-16 | 1980-04-22 | Monsanto Company | Process for separating aqueous mineral acid mixtures |
NL170374C (nl) | 1970-06-16 | 1982-11-01 | Monsanto Co | Werkwijze voor het afscheiden van water uit mengsels van water en formaldehyd. |
US4035291A (en) | 1970-06-16 | 1977-07-12 | Monsanto Company | Process for separating aqueous formaldehyde mixtures |
US4067805A (en) | 1970-06-16 | 1978-01-10 | Monsanto Company | Process for separating aqueous formaldehyde mixtures |
JPS5844401B2 (ja) | 1973-05-07 | 1983-10-03 | ドル オリバ− インコ−ポレイテツド | ナイゾウスルコウソオブンサンシテナル ジユウゴウタイマク ナラビニ ソノセイゾウホウホウ |
JPS5344486A (en) * | 1976-10-05 | 1978-04-21 | Nisshinbo Ind Inc | Membrane for separating material and separating method |
JPS6190708A (ja) * | 1984-10-08 | 1986-05-08 | Mitsubishi Rayon Co Ltd | アクリル系中空繊維の製造方法 |
CN1043562C (zh) * | 1994-09-15 | 1999-06-09 | 国家海洋局杭州水处理技术研究开发中心 | 一种聚丙烯腈膜的制造方法 |
ID21147A (id) * | 1996-12-10 | 1999-04-29 | Daicel Chem | Film berpori, proses untuk menghasilkannya, dan film laminasi serta lembaran pencatat yang dibuat dengan memakai film berpori |
CA2477863A1 (en) * | 2002-03-06 | 2003-09-12 | Pemeas Gmbh | Mixtures comprising vinyl-containing sulphonic acid, polymer electrolyte membranes comprising polyvinylsulphonic acid and their use in fuel cells |
JP4784522B2 (ja) | 2006-03-24 | 2011-10-05 | 東レ株式会社 | ポリフッ化ビニリデン系多孔質分離膜 |
CN103097009B (zh) * | 2010-03-04 | 2017-03-15 | 积水化学工业株式会社 | 高分子水处理膜及其制造方法 |
-
2018
- 2018-05-29 JP JP2019525284A patent/JP7086069B2/ja active Active
- 2018-05-29 WO PCT/JP2018/020565 patent/WO2018230330A1/ja unknown
- 2018-05-29 CN CN201880037319.8A patent/CN110709156A/zh active Pending
- 2018-05-29 EP EP18816647.4A patent/EP3639913A4/en active Pending
-
2019
- 2019-12-13 US US16/713,420 patent/US11224844B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000024475A (ja) | 1998-07-13 | 2000-01-25 | Asahi Chem Ind Co Ltd | 熱処理方法 |
JP2004256936A (ja) | 2003-02-25 | 2004-09-16 | Kanebo Ltd | 高難燃性アクリル系繊維の製造法 |
Non-Patent Citations (2)
Title |
---|
AEBISCHERP ET AL,Macroencapsulation of dopaminesecretingcells by coextrusion with an organic polymer solution,BIOMATERIALS,ELSEVIER,1991年01月01日,VOL.12,NO.1,P.50-56 |
島村 政治 外著,アクリロニトリル-p-スチレンスルホン酸ナトリウム共重合体の湿式紡糸,工業化学雑誌,1968年,第71巻,第8号,第1231-1235頁 |
Also Published As
Publication number | Publication date |
---|---|
US20200114318A1 (en) | 2020-04-16 |
US11224844B2 (en) | 2022-01-18 |
CN110709156A (zh) | 2020-01-17 |
EP3639913A4 (en) | 2021-04-14 |
EP3639913A1 (en) | 2020-04-22 |
JPWO2018230330A1 (ja) | 2020-04-16 |
WO2018230330A1 (ja) | 2018-12-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4908208B2 (ja) | 膜の後処理 | |
JP6329184B2 (ja) | 両親媒性ブロックを有するコポリマー、及びポリマー濾過膜を製造するためのその使用 | |
CA2649806A1 (en) | Highly durable porous pvdf film, method of producing the same, and washing method and filtering method using the same | |
WO2013022660A1 (en) | Polymer blend membranes | |
Shen et al. | Enhancing the antifouling properties of poly (vinylidene fluoride)(PVDF) membrane through a novel blending and surface-grafting modification approach | |
JP2022132487A (ja) | ろ過膜の作製 | |
JP6444382B2 (ja) | 1234yfおよび1234zeをベースとするポリマー膜材料、膜の調製およびその使用 | |
KR20180124031A (ko) | 양친매성 2블록 공중합체 및 중합체성 필터 멤브레인의 생산을 위한 이의 용도 | |
Ohno et al. | Development of low-fouling PVDF membranes blended with poly (2-methoxyethyl acrylate) via NIPS process | |
JP7086069B2 (ja) | 水処理用多孔質膜 | |
CN116036896A (zh) | 一种低截留分子量、窄孔径分布的复合纳滤膜及其制备方法 | |
JP6300374B2 (ja) | 陽イオン交換膜及びその製造方法 | |
JP2011156519A (ja) | 高分子水処理膜、水処理方法及び高分子水処理膜のメンテナンス方法 | |
KR101286521B1 (ko) | Ro/nf 공정에 적용 가능한 복합막 및 이의 제조방법 | |
JP2019147879A (ja) | 表面改質多孔質膜 | |
JP6390326B2 (ja) | 水処理用多孔質濾過膜の製造方法 | |
JP6018005B2 (ja) | 硝酸イオンの分離方法 | |
KR20210024074A (ko) | 알칼리-안정성 나노여과 복합 멤브레인 및 그의 제조 방법 | |
JP2006205003A (ja) | 耐塩素性ポリオレフィン中空糸膜及びその製造方法 | |
EP3919163A1 (en) | Polyelectrolyte complex membranes via salt induced phase separation | |
JP4164730B2 (ja) | 選択分離膜 | |
JPS5891731A (ja) | ポリフツ化ビニル系非対称多孔膜及びその製造方法 | |
JP4164774B2 (ja) | 選択分離膜の製造方法 | |
KR100411179B1 (ko) | 폴리아크릴로니트릴을 이용한 나노복합막의 제조방법 | |
KR0137384B1 (ko) | 항균성 투과수 집수관을 사용한 역삼투 모듈 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210324 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220208 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220316 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20220602 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20220607 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7086069 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |